DEV Community: Karan Sanghvi

Best Websites For Coders

Karan Sanghvi — Wed, 25 Jan 2023 14:30:37 +0000

Index

When you get stuck
News
Magazines
Coding practice for beginners
Cryptocurrency
For those who want to start a small project but can't find the ideas
General Coding advice
Coding Style
General Tools
Interview Preparation
Documentaries
MOOCs for learning something new
Sites related to your preferred programming language (For me C++)
Learn AI
Seminar , research writing , talks etc
Everything in one place
YouTube Channels
Good Articles
Bash and Shell scripting
Podcasts
Building a Simple Compiler/Interpreter
Watch others code
Tutorials
What should a programmer know
Competitive programming
Computer Books
Video Tutorials
Online Compiler and Sharing Code snippets
Blogs of Developers
For improving your English
When you get bored from CS related stuff
Open Source Websites
Internships
Jobs

When you get stuck

Codementor : A mentorship community to learn from fellow developers via live 1:1 help and more.
devRant : Community where you can rant and release your stress
Google : A search engine for anything you get stuck with.
Learn Anything : Community curated knowledge graph of best paths for learning anything
Quora : A place to share knowledge and better understand the world
Stack Overflow : subscribe to their weekly newsletter and any other topic which you find interesting
Stack Exchange : Stack Exchange is the combination of Stack Overflow and 170+ sites where you can get any kinds of help
Coderanch : A friendly place for programming greenhorns. Jump straight into any of our topics and light hearted discussions. Ranging from Java, Databases, Android, Programmer certification, Programming jobs and much more...

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News

ACM TechNews : TechNews
Stratechery : Stratechery by Ben Thompson
AlternativeTo : Crowdsourced software recommendations
Ars Technica : posts unique quality articles
Better Dev Links : Weekly links to help you become a better developer
Better Programming : Featured articles for modern developers available every day
CNET : Your guide to a better future! An excellent source of up-to-date tech news.
Daily.Dev : A Great Chrome extension which provides recent and relevant tech articles and news
DevOpsLinks : An online community of thousands of developers and IT experts interested in DevOps
Frontend Focus Newsletter : once-weekly roundup of the frontend news, articles and tutorials
GSMArena.com : news related to the latest mobile phones and android.
Hacker News Digest : curated automatically, delivered as frequently as you want
Hacker News : news aggregator for programmers where civility is king, try a newsletter to get top news to your inbox:
Hacker Newsletter : curated by hand, delivered weekly
Hacker Noon : How hackers start their afternoons.
High Scalability : Success stories of various companies on their apps, infra scaling.
Lobsters : Lobsters is a technology-focused community centered around link aggregation and discussion.
product hunt : Discover your next favorite thing
Recode : Tech news that focuses on the business of Silicon Valley
Reddit.com/r/programming : Subreddit with aggregated tech news and articles
Slashdot : News, Social news (Originally "News for Nerds. Stuff that Matters")
StackShare : See what tools are popular with developers and companies and read about their technology decisions
TechCrunch : dedicated to obsessively profiling startups, reviewing new Internet products, and breaking tech news
The DEV Community : Where programmers share ideas and help each other grow.
The Verge : More product oriented tech news
WCCF Tech : curated news related to Computer Hardware, Software, and everything else in the Tech World.
XDA : Android Developers News
Hashnode : Hashnode is a friendly and inclusive community for software developers
Rekt : A journalism related to Defi, Web3, Blockchain and security on them.
Hackaday : Hacking is an art form that uses something in a way in which it was not originally intended.

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Magazines

MIT Technology Review : MIT's tech review magazine.
Nautilus : NewYorker for tech.
LWN : Weekly news coverage of opensource technologies, programming, etc. ( Originally Linux Weekly News).

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Coding practice for beginners

freeCodeCamp : Learn to code and build projects for nonprofits. Build your full stack web development portfolio today
Blackbird School : Learn to code online with our beginner-friendly platform.
Glitch : Great place to play around with code in an easy-to-set-up environment.
Reddit.com/r/dailyprogrammer : interesting programming challenges where you can learn from looking at other's code, even if you are not able to solve code you can look at how others solved.
Programming by Doing : very good site for those who want to start with absolute basics
CodeAbbey - a place where everyone can master programming : Best place to begin with problems that start at the easiest and gradually increase difficulty with each problem.
Exercism.io : download and solve practice problems in over 50 different languages, and share your solution with others.
InterviewBit/Coding Interview Questions : Gamifies the experience of practicing for your interview and includes lots of sample problems to solve.
karan/Projects-Solutions : Solutions to most of the problems in the link above
Lod - Cloud : The Linking Open Data cloud diagram
Cave of programming : Learn to program, Upgrade your skills.
Vim adventures : Learn VIM by playing
Learn Vimscript the Hard Way : Learn Vim Script from begining to expert.
Programming Tasks : large collection of small programs
Pramp : It's your turn to be the interviewer. when done, click on the swap roles button on the left
Paqmind : Guides and challenges to learn programming
Codecademy : Learn to code interactively, for free.
Codegym : It contains a Java tutorial with 1200 Java practise tasks.
treehouse : The fast, easy, and affordable way to build your skills.
GeeksforGeeks : Learn to code, Study for placement, Do competitive coding.
edabit : Practice coding via various small challenges.
Learn Git Branching : Learn and practice git commands in an interactive way
Oh Shit, Git!?! : Cheat sheet to get yourself out of bad git situations
The Odin Project : The Odin Project provides a free open source coding curriculum that can be taken entirely online.
Udemy : Whether you want to learn or to share what you know, you’ve come to the right place. As a global destination for online learning, we connect people through knowledge.
Scaler : A curated interactive space for aspiring programmers to learn and master their coding skills. Also help in job interview.
SQL Zoo : Learn SQL interactively in stages, from basic queries to complex operations.

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CryptoCurrency

Blockchain Basics : Great introduction to blockchain
Blockchain demo : A visual demo of Blockchain technology
Build a blockchain in Python : Learn Blockchains by Building One
Coin demo : CryptoCurrency demo
GitCoin : Gitcoin is the easiest way to monetize or incentivize work in Open Source Software.
Learn About Bitcoin and Lightning Protocol: Complete 4 weeks seminar ciricullum for learning about Bitcoin.
Learn Me A Bitcoin: Bitcoin, Cryptocurrencies and Blockchain explained in plain English
Learn Web3 DAO: Learn to become a Web3 Developer for free.
Lite Paper : Cryptocurrencies & Blockchain made effortless
Lopp Bitcoin Resources : Some Bitcoin Resources
Mastering Bitcoin: Introduction to Bitcoin and tutorials to operate a full node
Mempool: Bitcoin block explorer, mempool visualizer, transaction tracker, and fee estimator

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For those who want to start a small project but can't find the ideas

freeCodeCamp/React project ideas : 27 fun app ideas you can build while learning React.
martyr2s-mega-project-ideas-list : contains about 125 project ideas from beginner to intermediate level.
karan/Projects : a large collection of small projects for beginners with
Wrong "big projects" for beginners : How to choose where to start
vicky002/1000-Projects : Mega List of practical projects that one can solve in any programming language!
reddit.com/r/AppIdeas : A place to discuss ideas for applications, for bored developers.
reddit.com/r/SomebodyMakeThis : A home for ideas by people who lack time, money, or skills.
florinpop17/app-ideas : A Collection of application ideas which can be used to improve your coding skills.

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General Coding advice

How to Begin With Competitive Programming
10-ways-to-be-a-better-developer : Ways to become a better dev!
Code Review Best Practices : Kevin London's blog
Design Patterns : Design Patterns explained in detail with examples.
Game Programming Patterns : Game Programming Patterns is a collection of patterns Robert Nystrom found in games that make code cleaner, easier to understand, and faster
How to become a programmer or the art of Googling well : How to become a programmer or the art of Googling well
How to escape tutorial purgatory as a new developer — or at any time in your career : How to escape tutorial purgatory
JS Project Guidelines : A set of best practices for JavaScript projects.
Learn to Code With Me : A comprehensive site resource by Laurence Bradford for developers who aims to build a career in the tech world
Lessons From A Lifetime Of Being A Programmer : The Codist Header Lessons From A Lifetime Of Being A Programmer
Programming Principles : Categorized overview of Programming Principles & Patterns
Software Architecture Guide : A site by Martin Fowler about Software Architecture patterns and best practices to help building software effectively.
Software design pattern : The entire collection of Design Patterns.
Things I Wish Someone Had Told Me When I Was Learning How to Code — Free Code Camp : What I’ve learned from teaching others
TeachYourselfCS : If you’re a self-taught engineer or bootcamp grad, you owe it to yourself to learn computer science. Thankfully, you can give yourself a world-class CS education without investing years and a small fortune in a degree program
What every computer science major should know : The Principles of Good Programming
Working as a Software Developer : Henrik Warne's blog
The Open Web Application Security Project (OWASP) : OWASP is an open community dedicated to enabling organizations to conceive, develop, acquire, operate, and maintain applications that can be trusted.

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Coding Style

Airbnb JS Style Guide : A mostly reasonable approach to JavaScript
Airbnb Ruby Style Guide : A Ruby style guide by Airbnb
Ruby coding style guide : A community-driven Ruby coding style guide
Angular 1 Style Guide : Officially endorsed style guide by John Pappa
CS 106B Coding Style Guide : must see for those who create spaghetti
Debugging Faqs : Check out how to debug your program
Directory of CS Courses (many with online lectures) : Another online CS courses
Directory of Online CS Courses : Free online CS courses
Good C programming habits. • /r/C_Programming : C programming habits to adopt
Google C++ Style Guide
How to Report Bugs Effectively : Want to report a bug but you don't know how? Check out this post
What are some bad coding habits you would recommend a beginner avoid getting into? : Bad habits to avoid when you get started
PEP8 - Style Guide for Python Code : Style Guide for Python Code
Standard JS Style Guide : JavaScript style guide, with linter & automatic code fixer
The Hitchhiker's Guide to Python : Best Practices for Python Development
Google Python Style Guide : Google Python Style Guide
Aurelia Style Guide : An Aurelia style guide by Behzad Abbasi(Behzad888)
Source Making : Design Patterns & Refactoring
Refactoring Guru: Refactoring And Design Patterns
Google Java Style Guide: Google Java Style Guide
Rust Coding style: Rust code formatting RFCs and coding style guides
Google C# Style Guide: Google C# Style Guide

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General Tools

CoderPad : Quickly Conduct Coding Interviews and Phone Screen Interviews.
CodePen : Front End Developer Playground & Code Editor in the Browser
Crontab Guru : Quick and simple editor for cron schedule expressions
Devicons : Cheatsheet for devs icons
Diagrams.net : Drawing tools to make design and uml easily. Old draw.io
FreeFor.Dev : A huge list of free resources and tools
Kody Tools: 100+ dev tools including code converters, formatters, and minifiers.
regex101 : Online regex tester and debugger: PHP, PCRE, Python, Golang and JavaScript
regexr : Another online tool to learn, build & test Regular Expressions
Wit AI : Natural Language for Developers
SaaS Design : Collection of open source Figma UI design templates for your next project.
Seymour : Live Programming for the Classroom
Code share : Share code in real-time with other developers
Solid Tools for Developers : Online debugging tools for developers and system administrators
OS Query : Easily ask questions about your Linux, Windows, and macOS infrastructure
LaunchPad : Appollo launchepad for testing GraphQl queries
GraphOnline : Useful tool for visualizing Graphs
Data Structure Visualization : Perfect website for visually learning Algorithms
IDE Onlang : Write in one language and get the same result in other languages.
Pad.new : Free cloud-based IDE to run code and databases in almost any language
PullRequest : Code review as a service from vetted, professional reviewers
Python Visualizer : Watch the execution of basic Python, Java, C++, etc. code step-by-step. Recommended for new programmers and the Canadian Computing Competition.
Extends Class : Online developer tools: REST and SOAP clients, SQLite browser, testers (Regex, XPath, JSONPath) and other tools (Encoders, Converters and formatters)
Sourcegraph : Online tool for searching millions of open source repositories.
SVG Path Editor : Online and open source SVG Path editor.
EmailDrop: Emaildrop is a free disposable email provider.
Replit.com: Free, collaborative, in-browser IDE to code in 50+ languages.
Svgator: Animate svg graphically. Its like a video editor but for svg.
Webhook.site: Useful tool for test and debug webhooks.

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Bash and Shell scripting

Advanced Bash-Scripting Guide : An in-depth exploration of the art of shell scripting
Bash Guide for Beginners : Bash Guide for Beginners Machtelt Garrels
Bash Programming : by Mike G mikkey at dynamo.com.ar
Bash Reference Manual : Bash Reference Manual
BashGuide : BashGuide - Greg's Wiki
Conquering the Command Line : Unix and Linux Commands for Developers
Airborn OS : Private Google Docs Alternative
Commandlinefu : An extensive collection of Shell oneliners that can save your day on many occasions
Pure Bash Bible : A collection of pure bash alternatives to external processes.

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Interview Preparation

10 Frequently asked SQL Query Interview Questions
A Collection of Quant Riddles With Answers
A Developer's Guide to Working with Recruiters
Algorithm design canvas
Aptitude Questions and Answers : Quant and aptitude preparation
A site for technical interview questions, brain teasers, puzzles, quizzles : whatever the heck those are) and other things that make you think!
Big collection of interview preparation links • /r/cscareerquestions
Big-O Algorithm Complexity Cheat Sheet
BIG O Misconceptions
Bitwise tricks
ChiperSoft/InterviewThis : questions to ask during on a interview to know more about the company.
Code Project : For those who code!
Core Java Interview questions - Interview question on each topic
C PUZZLES, Some interesting C problems
CS9: Problem-Solving for the CS Technical Interview
Delightful Puzzles
Determining the big-O runtimes of these different loops? : really good stackoverflow question that covers basics of calculating runtime complexity.
five-essential-phone-screen-questions - steveyegge2
Freshers Interviews
Gainlo : Mock interview from professionals
GeeksforGeeks/A computer science portal for geeks : also subscribe to their feeds to get links to their new articles.
github.com/odino/interviews : list of important questions for interview
Give your résumé a face lift
Google Interview Warmup : Google Interview Warmup is an AI-based tool that helps individuals practise for their interviews.
Here's How to Prepare for Tech Interviews • /r/cscareerquestions
How to Answer "Tell Me a Little About Yourself"/The Art of Manliness
How to Answer the Toughest 40 Job Interview Questions/ICS Job Portal
How to Break Into the Tech Industry - a Guide to Job Hunting and Tech Interviews
How to interview
How to prepare for an interview - 1
IIT Delhi Placement Experience
samwincott/Internship-Guide : An aggregate of links related to internships.
Interviewing At Jane Street : Interviewing At Jane Street
Interview Archives - Java Honk
Interview Cake : Free and Paid course options offering high quality technical interview practice.
Job Interview: How to Ace a Job Interview/The Art of Manliness
Job interviews News, Videos, Reviews and Gossip - Lifehacker
Job Interview Questions and Best Answers
kimberli/interviews : study sheet for Interview
LeetCode : A new way to learn.here you can prepare for your interview.
Learnersbucket: Data Structures and Algorithms in Javascript.
Mission-peace/interview problems : A large collection of coding interview problems
NeetCode: Prepare topic wise coding questions which are most frequently asked in MAANG companies.
Pramp/A free on demand interview practice platform for Software Engineers : Practice coding interviews with real peers
Problems/LeetCode OJ : Coding practice for interviews
Programmer And Software Interview Questions Answers
Reddit.com/user/ashish2199/m/puzzles : Logic Puzzles
SQL interview questions : great SQL test
SQL Joins explained using venn diagram
svozniuk/java-interviews : Java interview questions
Techie Delight : Leading platform for technical interview preparation.
The 25 most difficult HR questions
Top 10 Algorithms for Coding Interview : Algorithms for Coding Interview
Unix / Linux Cheat Sheet
Unsolicited_advice_for_job_seekers_and_employers
Visualising Data Structures and Algorithms through Animation
We Help Coders Get Hired : website offering courses on system design, interview strategies, soft skills etc
what_are_your_goto_questions_for_the_do_you_have?
Why You Make Less Money • /r/cscareerquestions
wu :: riddles(hard) : logic puzzles and riddles
What I Learned from Interviewing at multiple AI Companies and Start-Ups -Tech Interview Handbook: Guide on cracking tech interviews

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Documentaries

Breaking the Code : Biography of Alan Turing
Cracking The Code Interview : Cracking the Code Interview
Cracking the Coding Interview : Cracking the Coding Interview, Fullstack Speaker Series
Harvard CS50 - Asymptotic Notation (video) : Asymptotic Notation explained by Harvard
Machine Code Instructions (video) : Code instructions
Machine that Changed the World - a very good documentary about the history of computers
- Part 1 is unavailable for free streaming due to widespread copyright claims.
- Part 2: Inventing the Future
- Part 3: The Paperback Computer
- Part 4: The Thinking Machine
- Part 5: The World at Your Fingertips
Mechanical Computer (All Parts) : a very good video from the 1950s explaining how mechanical computers used to work without all the modern-day electronics.
Teach Yourself Computer Science : Teach Yourself Computer Science
The Code : Story of Linux documentary
The Internet's Own Boy : The Story of Aaron Swartz

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MOOCs for learning something new

Class Central : a directory of 100,000+ student reviews of thousands of MOOCs.
Classpert : a website that gathers MOOCs and online courses from several providers, focusing on computer science and data science courses.
Computer Science Resources : list of MOOCs for autodidacts
Coursera.org : Take the world's best courses, online.
CS50 : A set of goods tutorials from cs50
edX : Free Online Courses, Advance Your Career, Improve Your Life.
Kadenze/Creative Programming : Programming courses focused on art and creativity
MIT OCW Electrical Engineering and Computer Science
MOOC.fi : Free online courses from the University of Helsinki
NPTEL : Free online courses by IIT with certificates
prakhar1989/awesome-CS-courses : List containing large amount of CS courses
Pluralsight : An online learning and workforce development platform that helps businesses and individuals adjust to changing technology.

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Sites related to your preferred programming language (For me C++)

Best books for learning java must read : Get basics of Java
Bjarne Stroustrup's C++ Style and Technique FAQ : The C++ FAQ
Bjarne Stroustrup's FAQ : The C++ FAQ
C++11 - the new ISO C++ standard : The C++11 FAQ
Compilers (video) : A set of videos on how the GC works
Deep Dive Java : Garbage Collection is Good!
Free Online Chapters of Inside the Java Virtual Machine by Bill Venners : Java Corner
How Garbage Collection Works : Java memory management
Implementation of Algorithms and Data Structures, Interview Questions and Answers
IntelliJ Keyboard Shortcuts : Keyboard shortcuts to enhance your productivity when working in IntelliJ.
Java Corner at Artima.com : Java Corner at Artima.com
Java Lecture Notes : Java Student's Resource
Java Off Heap : Java Off the Heap house
Java Revisited : good for learning about Java Language and interview preparation.
Java-source : Java source
Java Visualizer : helps visualize references, values of variables, etc
JournalDev - Java, Java EE, Android, Web Development Tutorials : Java, Java EE, Android, Web Development Tutorials
Learning Java : a free online textbook for learning Java
Netbeans Keyboard Shortcuts : Keyboard shortcuts to enhance your productivity when working in Netbeans.
Official Qt Documentation : Documentation for different Qt versions, languages, tools and platforms
Search Open Source Java API : view source of java library and learn how things are implemented.
The C++ Programming Language : The C++ Programming Language.
The Java Memory Model: The Java Memory Model
The Java™ Tutorials : The best tutorials for Java.
Understanding JVM Internals : Understanding JVM Internals
what-is-garbage-collection : Demystify the garbage collection
JavaWorld : Welcome to Javaworld
XyzWs Java FAQs : large collection of java interview questions
JavatPoint : Best website to get a basic Java programming tutorial
The Rust Programming Language Book : Explains the Rust programming language
Rust Cookbook : Quickly get an overview of the capabilities of the Rust crate ecosystem
Getting start with python : A-Z python programming concepts and methods.
Rust by Example : A collection of runnable examples that illustrate various Rust concepts and standard libraries

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Learn AI

aima : The leading textbook in Artificial Intelligence (4th most cited publication of the century). Includes Github repositories and more AI resources!
fast.ai : Free practical deep learning course for coders without grad-level maths!
TypeDB : A Strongly-typed Database
Robots that learn : Robots that Learn
Unsupervised Sentiment Neuron : Unsupervised Sentiment Neuron
What's the difference between AI- DP and ML? : Difference artificial intelligence, machine-learning, deep-learning-ai
TensorFlow : An open-source software library for Machine Intelligence
Scikit-learn : A Python module for machine learning build on top of SciPy
DeepLearning.ai : Deep Learning course by Andrew Ng, Founder of Coursera
Coding the History of Deep Learning : Coding the History of Deep Learning
Serpent AI : Game Agent Framework. Helping you create AIs / Bots to play any game you own! BETA
Blog Floydhub : Colorizing B&W Photos with Neural Networks
MLCOURSE.AI : Open Machine Learning course by OpenDataScience
Elements of AI : A free course for AI basics by Reaktor and University of Helsinki
Machine Learning Mastery : A comprehensive blog that contains guidance, tutorials, and e-book for mastering ML
Machine Learning Crash Course : A jumpstart AI course from Google
Machine Learning Tutorial: A Step-by-Step Guide for Beginners : A one-stop playlist for all the basics of Machine Learning simplified, from Logistic Regression to Reinforcement Learning.

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Seminar, research writing, talks, etc

Advice on Research and Writing : A collection of advice about how to do research and how to communicate effectively (primarily for computer scientists).
PHD MS Articles : articles and views
Seminar and reports : Everyone must read this tiny book before writing the seminar report
Latex reference : Arbitrary reference
Begin Latex in minutes : Brief Intro to LaTeX for beginners that helps you use LaTeX with the ease
Lshort : The Not So Short Introduction to LATEX2ε

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Everything in one place

API Documentation : A one-place well-known API Documentation with a searchable interface
Baeldung : Step-by-step guides for Spring, rest, Java, security, persistence, Jackson, HTTP client-side and Kotlin
Branition Colors : Collection of hand-curated color palettes best fitted for branding.
cheat.sh : curl cheat.sh — the only cheat sheet you need — instant answers on programming questions with curl
Developer Roadmaps : Step by step guides and paths to learn different tools or technologies
DevURLs : Developer news aggregator
Kaggle : All-in-one Machine Learning and Data Science Community – access free GPUs and a huge repository of community published data & code.
MDN Web Docs : A place with all the documentation of the web standards
Rico's cheatsheets : A set of good cheatsheets
Programming Subreddits : a multisubreddit of all subreddits of topics related to computer science and programming.
Websites a programmer should visit : Response on Quora by ashish2199
gitignore : A collection of useful .gitignore templates for your project. Select from 442 Operating System, IDE, and Programming Language
Hidden Tools : Discover a wide collection of tools made by the community - for you. ✨
Coolors : Create the perfect palette or get inspired by thousands of beautiful color schemes.
Tailwind CSS Page Builder : The perfect Tailwind CSS Page Builder
LottieFiles : The world’s largest online platform for the world’s smallest animation format for designers, developers, and more. Access Lottie animation tools and plugins for Android, iOS, and Web.
UI Design Daily :Weekly FREE UI resources straight to your inbox
Iconscout : Over 2.2 Million+ Design Assets, Curated SVGs, Vector Icons, Illustrations, 3D graphics, and Lottie Animations. Over 3000+ assets added every day. Integrated plugins, tools, editors, and more.
Json API App : Single repository for everything you need to build better products as a developer. API, DB, Queue, Server, Webhooks, Bin, Tools, Podcasts etc. Everything you need to build super apps that our world needs.
Library or micro code solutions : Community library of micro code pieces for popular issues.

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YouTube Channels

C++Now (BoostCon) : C++Now (previously BoostCon) conference
code::dive conference : code::dive conference organized by NOKIA Wrocław Technology Center
Coding Blocks : Tutorials, how to's, tips and tricks
Computerphile : Must watch for every CS student
ComputerHistory : for those who like to know how we reached where we are.
CppCon : C++ Conference
Facebook Developers
Google Developers
GoogleTechTalks : videos on trending topics and cool stuff happening in the tech industry.
Gynvael Coldwin : Awesome reverse engineering and hacking(CTF) videocasts. Every Wednesday is new live streams.
HowToBecomeTV : contains good interviews of developers and people related to the tech industry.
Java : talks related to java
JavaOne : Java Conference
javidx9 : Game and graphics tutorials
Meeting C++ YT Kanalseite : Talks on C++
MIT OpenCourseWare : MIT OpenCourseWare for learning in-depth algorithms, data structures, and computer engineering
Murtaza's OpenCV Robotics and AI: OpenCV, Self Driving, Robotics and AI tutorials.
Netflix UI Engineering : great videos to watch for web developers, mobile developers and those interested in some of Netflix's tech stack
O'Reilly : interviews and talks of the world's best technical writers.
Placement Grid : Interview and campus placement experience
Scott Meyers: Past Talks
Siraj Raval : Artificial Intelligence and deep learning tutorials videos
ThinMatrix : blogs and tutorials developer making a 3d game in Java using OpenGL
thoughtbot : talks on various topics
Traversy Media :Web development and programming
yegor256
GOTO Conference : tech talks from the GOTO Conference by Developers for Developers
freeCodeCamp : freecodecamp youtube channel
Bo Qian : Learn advanced c++
Geeksforgeeks : geeksforgeeks youtube
Hacker earth : Hacker earth youtube
Hak5 : Put together by a band of IT ninjas, security professionals, and hardcore gamers, Hak5 isn't your typical tech show. We take on hacking in the old-school sense.
Khan Academy : Khan Academy youtube
LearnCode.academy : 100% FREE Web Development tutorials, web site design tutorials, and more. Including, but not limited to: HTML, CSS, JavaScript, CSS Layouts, Responsive Design, React.js, Node.js, Angular.js, Docker, Dev
Rachit Jain : competitive programming
sentdex : Python Programming tutorials, going further than just the basics. Learn about machine learning, finance, data analysis, robotics, web development, game development, and more.
Steve Griffith : The videos on this channel are largely about web design & development with a good dose of mobile development thrown in just for fun.
The Coding Train : In this YouTube channel I publish "creative coding" video tutorials every week. Subjects covered range from the basics of programming languages like JavaScript (with p5.js) and Java (with Processing) to generative algorithms like physics simulation, computer vision, and data visualization.
TheHappieCat : Videos on technology, storytelling, and being happie.
Tutorials Point (India) Pvt. Ltd. : Tutorials Point originated from the idea that there exists a class of readers who respond better to online content and prefer to learn new skills at their own pace from the comforts of their drawing rooms. We bring simple to understand Text and Video tutorials at zero cost and cover many subjects including IT, Engineering, MBA, MCA, Management, Various Exams Preparation, and Academic subjects. If you are not extravagant and willing to save your money and time then we recommend you to try our tutorials.experience
Udacity : Udacity, a pioneer in online education, is building "University by Silicon Valley", a new type of online university
V. Anton Spraul : Videos for people who want to understand the software better, including explanations of how the software performs some of its most important jobs and tools programmers can use to solve programming problems.
xdadevelopers : You have found the world-famous XDA-Developers.com YouTube Channel, known as XDA TV. We cover Android and Windows Mobile from HTC, Samsung, Motorola, Sony, and more. Learn about rooting your Android, how to build applications, and more.
KudVenkat : Microsoft .NET technologies and SQL Server tutorials.
The Net Ninja: Web development tutorials
Web Dev Simplified: Tutorials based on Web development from basic to advanced.
Take You Forward: Tutorials on Data structures and Algorithms in Java and C++.

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Good Articles

14 Things I Wish I’d Known When Starting with MongoDB
40 Keys Computer Science Concepts Explained In Layman’s Terms
A Gentle Introduction To Graph Theory
A programmer-friendly language that compiles to Lua.
A Software Developer’s Reading List : Some good books and links in there.
Code a TCP/IP stack : Let's code a TCP/IP stack, 5: TCP Retransmission
Codewords.recurse : The language of choice
Data structure and Algorithms : List of some algorithms and data structures with their solutions.
Dive into the byte code
Expectations of a Junior Developer
Getting Started with MongoDB – An Introduction
Linux Inside
List of algorithms
Step by Step Guide to Database Normalization: A guide to database normalization.
The Key To Accelerating Your Coding Skills
Unicode
We are reinventing the retail industry through innovative technology
What every programmer absolutely, positively needs to know about encodings and character sets to work with text
What every programmer should know about memory - PDF
qotoqot - improving-focus : How I got to 200 productive hours a month
Pixel Beat - Unix : Parallel processing with Unix tools
Learning Vim : What I Wish I Knew
Write a Kernel : Kernel 101 – Let’s write a Kernel
Learning JavaScript Design Patterns : the online version of the Learning JavaScript Design Patterns published by O'Reilly, released by the author Addy Osmani under CC BY-NC-ND 3.0
Working with Webhooks : a comprehensive guide on webhooks
How I got TensorFlow Developer Certified : Step By Step guide to pass Tensorflow Developer Certification

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Podcasts

Coding Blocks : A podcast covering topics such as best programming practices, design patterns, coding for performance, object-oriented coding, database design and implementation, tips, tricks and a whole lot of other things.
Developer On Fire : A podcast that shares the humanity of developers and tells stories of some of the amazing people in software, hosted by Dave Rael.
Developer Tea : A podcast for developers designed to fit inside your tea break.
Front End Happy Hour : A podcast featuring a panel of Software Engineers from Netflix, Evernote, Atlassian & LinkedIn talking over drinks about all things Front End development.
Full Stack Radio : Everything from product design and user experience to unit testing and system administration.
Groovy Podcast : A podcast dedicated to the Groovy programming language and its ecosystem.
IPhreaks : A weekly group discussion about iOS development and related technology by development veterans. We discuss Apple, tools, practices, and code.
JavaScript Jabber : A weekly discussion about JavaScript, front-end development, community, careers, and frameworks.
Learn To Code With Me Podcast : A Season by season of tech podcast episodes by Laurence Bradford with topics ranging from Career in Tech to lessons in doing tech business
LispCast : A podcast by Eric Normand, a functional programming expert talking about FP concepts.
MS Dev Show : Jason Young and Carl Schweitzer talk about the latest in developer news covering topics such as the Azure cloud, Windows, Windows Phone, Visual Studio, and cross-platform development using the Microsoft platform.
React Native Radio : A weekly discussion of the tools, techniques, and technologies used to build mobile applications with JavaScript and React.
ShopTalk Show : A weekly podcast about just building websites from Dave Rupert and Chris Coyier.
Soft Skills Engineering : A weekly advice podcast for software developers about non-technical topics.
Software Engineering Daily : A daily technical interview about software topics.
Software Engineering Radio : A podcast targeted at the professional software developer. The goal is to be a lasting educational resource, not a newscast.
Syntax : A Tasty Treats Podcast for Web Developers by Wes Bos & Scott Tolinski.
The Bike Shed : Guests discuss their development experience and challenges with Ruby, Rails, JavaScript, and others.
The Changelog : A weekly conversation that gets to the heart of open source technologies and the people who create them.
The Cynical Developer : A podcast that aims to help you to improve your development knowledge and career, through explaining the latest and greatest in development technology and providing you with what you need to succeed as a developer. Covering Desktop, web, and mobile development, mainly around the .Net Stack but often looking into other software and frameworks.
The Real Python Podcast : A weekly Python podcast hosted by Christopher Bailey with interviews, coding tips, and conversation with guests from the Python community.
Blockchain Insider by 11:FS : Podcast to learn about the Blockchain Technology
Unchained Podcast to learn about the Blockchain Technology
Talk python to me Podcast to learn about Python through interviews and discussions
Python bytes Podcast to learn about the latest happenings and trends in Python

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Building a Simple Compiler/Interpreter

⛄ Possibly the smallest compiler ever : This is an ultra-simplified example of all the major pieces of a modern compiler written in easy to read JavaScript.
Awesome Compilers : Curated list of awesome resources on Compilers, Interpreters, and Runtimes.
Growing a compiler : Learn how to grow a compiler
Let’s Build A Simple Interpreter. Part 1. : Try to demystify compilers by building one
Resources for Amateur Compiler Writers : Resources for Amateur Compiler Writers
Structure and Interpretation of Computer Programs : Structure and Interpretation of Computer Programs
Writing My First Compiler : Write out your first compiler
An Intro to Compilers : How to Speak to Computers, Pre-Siri
Write your own compiler : How to write your compiler
Crafting Interpreters A handbook for writing interpreters, first implementing a tree walking interpreter and later a bytecode virtual machine
Writing a C Compiler : The first post in a series by Nora Sandler on writing your own C compiler

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Tutorials

A Hacker's Guide to Git : for those wanting to learn git with a solid foundation
A Byte of Python : a free beginner introduction to python
Best Of - Gustavo Duarte : contains articles on various topics
CMSI 281: Data Structures : lightweight introduction to DS
Collecting all the cheat sheets : cheat sheets for lots of programming languages
C Programming
CryptoHack : Learn cryptography through challenges and tutorials. Has a leaderboard and new challenges are added every few months.
Programming Community Curated C++ Resources : resources recommended by developers
Deep C : very good presentation on C language
Design Patterns: Elements of Reusable Object-Oriented Software : aka the "Gang Of Four" book, or GOF
Dynamic programming - PrismoSkills : very good resource if want to learn how to solve DP problems.
Flexbox Froggy : a game that teaches you how to use CSS flexbox properties
Git from the inside out
Head First Design Patterns
How to Program in C++ : Good resource for revising C++ topics and STL
http://www.mysqltutorial.org/
indradhanush tutotials : Writing a Unix Shell
Introduction to C Programming
Learn UNIX in 10 minutes
Learning the shell.
Linux Journey : good site for learning Linux
Linux Tutorial : good resource for learning Linux
Missing Semester : The missing semester of your computer science education
More about Github-flavored markdown
MySQL Essentials
Open Data Structures : Excellent resource for learning about DS and algos, provides code in various languages C++, Java, and pseudocode.
OS Course Notes : Chapter-wise course notes according to Galvin's book
Programming, Web Development, and DevOps news, tutorials, and tools for beginners to experts
Stanford Programming Course : Full, free CS course created by Stanford
SQL (Structured Query Language) in one page : SQL.SU : a very good SQL cheat sheet
Subtle/Poor Man's CI : Learn how continuous integration platforms work under the hood, by building one of your own on top of git with Node.js
TCP/IP Illustrated Series
The Bash Guide : a very good guide for learning the Bash Shell
The Descent to C : for those moving to C from some higher programming language like java or python.
The Linux Command Line: A Complete Introduction
The Unix Programming Environment
TopCoder Tutorials
Tutorialspoint : Text and Video Tutorials for UPSC, IAS, PCS, Civil Services, Banking, Aptitude, Questions, Answers, Explanation, Interview, Entrance, Exams, Solutions
UNIX and Linux System Administration Handbook, 4th Edition
VimTutor+ : Learn VIM from the browser.
W3Schools Online Web Tutorials
Unix Shell : Unix shell scripting with ksh/bash
Snap SVG : The JavaScript SVG library for the modern web
vim.rtorr : Vim Cheat Sheet
Open Vim : Interactive Vim tutorials
Algorithm Using Dynamic Programming and A : Designing a Tree Diff Algorithm Using Dynamic Programming and A*
Learn Python : Free Interactive Python Tutorial
C++17 : A guide of C++17
The Bash Academy : The Bash Academy is an initiative to promote the bash shell language and educate people on its use.
Learn Shell Programming : This website is intended for everyone who wishes to learn programming with Unix/Linux shell interpreters.
Java tutorial : A programming community & a great place to find the best online programming courses and tutorials.
Explain Shell: Match command-line arguments to their help text
Speaking io : Tips for public speaking
Javascript.info : The Modern JavaScript Tutorial

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Watch others code

Education Ecosystem : screencast of people building applications, websites, games, etc.
Twitch.tv : The programming community of twitch.

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What should a programmer know

Can I use : A website that provides up-to-date browser support tables for support of front-end web technologies on desktop and mobile web browsers.
GitHub.com Build software better, together : Place to showcase your project and collaborate with others. (Must know Git to use it effectively)
GitLab : An alternative to GitHub that offers free unlimited (private) repositories and unlimited collaborators.
Programmer Competency Matrix : article for knowing what our level as a programmer is.

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Competitive programming

Topic Wise Problem For Competitive Programmer : Topic wise Practise Problem
Advent of Code : An Advent calendar of small programming puzzles
Archived Problems - Project Euler : Problems Archives
Art of Problem Solving : Is math class too easy for you? You've come to the right place!
CodeChef : The only programming contests Web 2.0 platform
CodeSignal : Test your coding skills
CodeEval : Notepad for notes and code snippets, stored locally in the browser
Codeforces : Programming Competition,Programming Contest,Online Computer Programming
Codewars : Rank up by completing code kata
Codility : Verify and improve coding skills
Codingame : Learn coding through games and challenges!
Facebook Hacker Cup : Facebook's Programming Contest, past problems solutions and FAQ
Google Code Jam Practice and : past contest problems for practice
HackerEarth - Programming challenges and Developer jobs
HackerRank : Practice coding. Compete. Find jobs.
LightOJ : Practicing at lightoj is so good for beginners as it is categorized and have also chat room and forum which helps to communicate with others about any problem.
PKU ACM ICPC Practice problems : Judge online for ACMACPC
Sphere Online Judge (SPOJ) : Become a true programming master Learn how to code and build efficient algorithms
Topcoder : Deliver Faster through Crowdsourcing
URI Online Judge : Practice coding, Compete and be a better coder.
UVa Online Judge : hundreds of problems supporting multiple languages.
WakaTime : leaderboards of coding metrics collected via editor plugins
PrepBytes : Topic and level wise proper arrange problems
A2OJ Ladders : Practice codeforces problems based on your proficiency and difficulty

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Computer Books

Become a Programmer, Motherfucker (list of books) : Exhaustive list of books from Zed A. Shaw.
Best books for GATE CSE
cses.fi/book.html
github.com/vhf/free-programming-books : More than 500 free ebooks on almost any language you can think of
GitBook : GitBook helps your team write, collaborate, and publish content online.
Data Science course : Python Data Science Handbook
Goal Kicker : Programming Notes for Professionals books
The GraphQL Guide : The complete guide to GraphQL, the new REST ✨
Eloquent JavaScript : A book about JavaScript, programming, and the wonders of the digital.
programmingbooks.dev : An Ordered and Curated Reading List for Software Craftsmanship Growth.

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Video Tutorials

Aditya Verma: Algorithm tutorials playlists by an Indian youtuber Aditya verma.
codedamn : front end web dev tutorials
Code School : A PluralSight Company and an Interactive learning destination for aspiring and experienced Developers
CodingMadeEasy : C++ tutorials
CS1: Higher Computing - Richard Buckland UNSW : a very good introductory CS course
Derek Banas : good quality tutorials
Design and Analysis of Algorithms
DevTips : web dev tutorials
FreeCourses : Free courses about programming
Kathryn Hodge : Has good videos for beginners
Kunal Kushwaha : An amazing guide to Git and GitHub for beginners
mycodeschool : Data structures and algorithms tutorials
Pluralsight : Learn Software Development, DevOps and Data Science through multiple short courses
thenewboston : good but with too much talk as compared to actual content
Tushar Roy : Algorithm and Data structure tutorial by an Indian Youtuber.
Vim Tutorial Videos - Flarfnoogins : good video tutorial for learning vim
XDA-University - Helping You Learn Android Development
Khan Academy : learn about computer science for free
Functional programming : John Carmack on Functional Programming (2013)
Video about vims : A serie of tutorials about Vim
Mastering Next.js : A free serie of videos to learn Next.js

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Online Compiler and Sharing Code snippets

C9.io : Your development environment, in the cloud
Carbon : Create pretty looking images of your code snippets.
Codeframe : Online pastebin-like playground for building websites using HTML, CSS, and JavaScript
CodePad : Code editor to try, test and run 25+ languages
Coder : A Web-based development environment using Visual Studio Code as a code editor
Codesandbox.io : CodeSandbox makes it easier to create, share, and reuse React projects with others.
Github Gist : Instantly share code, notes, and snippets.
Godbolt.org : Excellent tool for exploring the assembly output of different compilers with and without optimization.
Ideone.com : online compiler and debugging tool for more than 60 programming languages
JSFiddle : Test your JavaScript, CSS, HTML or CoffeeScript with online code editor
JSBin : Front end playground, Output is not framed, so it allows you to share those snippets that will break inside an iframe.
Judge0 IDE : Online compiler with 40+ interpreters and compilers.
Pastebin.com : Pastebin can store texts like code, notes, and snippets online for a set time which can be shared instantly.
PlayCode : Online Javascript playground with a built-in console and support for npm packages.
Wandbox: Online compiler with bleeding edge C++ and 40 other languages.

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Blogs of Developers

Algo-Geeks : Programming Puzzles, Math Tricks, Algorithms, etc
Amit Merchant : Tutorials, tips & tricks, and rants about programming and design.
Andy Heathershaw : Personal website and blog of software developer Andy Heathershaw
Antonio081014's Algorithms Codes : The world is under the RULE.
Archives — Ask a Manager : HR-related stuff
Armin Ronacher's Thoughts and Writings : blog on Python and open source
blog.might.net : the blog of might dot net
Brendon Gregg - Linux Kernel Dev : the blog of Brendon D. Gregg
Clean Coder Blog : a blog of the author of the book "Clean Code"
CodeAhoy : Blog on software and human factors. 100% Tested on Humans.
CoderGears Blog Insights from : the CoderGears Team
Coding Geek - A blog about IT, programming and Java : A blog about IT, programming and Java
Coding Horror : one the best coding blog
CSE Blog : quant, math, computer science puzzles
CSS Tricks : about building websites and all that entails, mostly from a front-end perspective
Daedtech.com : Stories about software
Dan Dreams of Coding
Daniel Lemire's Blog : Daniel Lemire's blog
Eli Bendersky : everything from Python to LLVM
Geek Land : My precious collectibles
HackerEarth Blog : The HackerEarth blog
IT Enthusiast : IT Enthusiast
Joel on Software : The blog of the CEO of StackOverflow
Late Developer : Random thoughts of an old C++ guy
Linux Forums : A Friendly Linux Forum
1ucasvb's laboriginal math and physics visualization : Lucas Vieira Barbosa's lab original math and physics visualization
Math ∩ Programming : Math ∩ Programming
My Tech Interviews : PREPARE FOR A TECHNICAL INTERVIEW
Paul Graham Essays : Paul Grahan Essays
Programming Blog : programming blog of Yegor Bugayenko
Programming in the 21st Century : programming in the twenty-first century
rudhakar Rayavaram : Sudhakar Rayavaram Blog's
Runhe Tian Coding Practice : Technical interview questions from Apple, Google, Facebook, Amazon, and Microsoft
Small Programming Challenges and Puzzles : Project Nayuki
stevehanov.ca : I know how to make and sell software online, and I can share my tips with you.
Takipi Blog : mainly focuses on Java and JVM languages
XDA - Android Developer Forum : Android Open Source Developers Forum
The Net Ninja: Web development tutorials

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For improving your English

Englishclub.com/learn-english
Guide to Grammar and Writing : for those who want to improve their English language skills
Punctuation and Capitalization Rules
Purdue University Online Writing Lab (OWL)
Quia - English
AntiMoon Immersion Approach: Immersion-based learning of English, can be used by people on different levels.

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When you get bored from CS related stuff

Barcroft TV : Daily short documentaries about the incredible variety of people that make up the world
Big Think : Expert driven, actionable, educational content, featuring experts ranging from Bill Clinton to Bill Nye
ColdFusion : Past, present, and future of technology
CrashCourse : small courses on various subjects
Every Frame a Painting : High-quality analysis of films and filmmaking
National Geographic : High volume of high-quality content from all over the world
r/ProgrammerHumor : Subreddit dedicated to exactly what it sounds like
Reddit the front page of the internet : Where free time goes to die
Ridddle : A youtube channel about science, mainly, but not only, the universe and space.
Regex Crossword : A simple crossword game where clues are regex that must be matched.
SciShow : Answers to interesting questions that you've always wondered about
SmarterEveryDay : Lots of amazing scientific information about the world around us, usually captured with a high-speed camera
TED : Great talks about technology, entertainment, and design
TestTube News : Interesting information about news from around the world
How to live for a long time ? : The secret of longevity
Vsauce : The best youtube channel
Ox A cuk : How to live a happy life
lonelyspeck : Expose to the Right for Astrophotography in Light Pollution – Palos Verdes, Los Angeles, California

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Open Source Websites

N-O-D-E : Everything open-source and hacker culture - news, zines, and projects
Open Hatch : OpenHatch is a non-profit dedicated to matching prospective free software contributors with communities, tools, and education.
Source Forge : SourceForge hosts nearly 280,000 projects (at last count). It serves more than 2 million downloads a day and includes apps and tools in a wide variety of categories.
Google Code : Google offers free hosting for open source projects using the Subversion or Mercurial version control systems. It offers 2 GB of storage, integrated code review tools, a wiki, and an issue tracker. The Google Code site also provides links to Google's many publicly available APIs and other developer tools.
Launch Pad : Maintained by Canonical, LaunchPad is particularly targeted at projects that run on Ubuntu. It provides hosting for more than 21,000 projects that use the Bazaar version control system.
Google Open Source : Google Open Source
Red Hat Developer : The world's leading provider of open source solutions
Open Source : Open Source
Google Summer of Code : Google Summer of Code is a global program focused on bringing more student developers into open source software development. Students work with an open-source organization on a 3-month programming project during their break from school.
Open Source Web Design : Open Source Web Design is a platform for sharing standards-compliant free web design templates. We give web publishers a voice through good design.
Mozilla Winter of Security : The Winter of Security (MWOS) is a program organized by Mozilla's Security teams to involve students with Security projects. Students who have to perform a semester project as part of their university curriculum can apply to one of the MWOS projects.
Bit Bucket : Like GitHub, BitBucket hosts both public and private projects. On this site, open-source projects and private projects with fewer than five users are free. It hosts more than 48,000 repositories, many of which are searchable on the site.
Media Wiki : MediaWiki is a free software open source wiki package written in PHP, originally for use on Wikipedia. It is now also used by several other projects of the non-profit Wikimedia Foundation and by many other wikis, including this website, the home of MediaWiki.
Code Curiosity : CodeCuriosity is a platform that encourages contributions to open source. Everyone is rewarded for their efforts, no matter how big or small they are.
Code Triage : Help out your favorite open-source projects and become a better developer while doing it.
Issue Hub : Contribute to Open Source. Search issue labels to find the right project for you
Up for Grabs : This is a list of projects which have curated tasks specifically for new contributors. These are a great way to get started with a project or to help share the load of working on open source projects.
First Timers Only : Contributing to open source for the first time can be scary and a little overwhelming. Perhaps you’re a Code Newbie or maybe you’ve been coding for a while but haven’t found a project you felt comfortable contributing to.
Your First PR : Your First PR helps you get started contributing to Open Source by showcasing great starter issues on GitHub and elsewhere.
Awesome First PR Opportunities : An awesome repository for finding beginner-friendly projects in different programming languages.
EddieHub Open source community : A Supportive community for people who are interested or already contributing in Open source.

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Internships

Chegg : It is an awesome resource for finding internships, scholarships, tutors, etc.
Internshala : You can search for internships here according to your skill sets for your interested location. It also helps you in getting a good PPO offer from the company.
Letsintern : Get a smart and challenging internship for you from the LetsIntern.
PerfectIntern: Get help finding a paid internship, resume prep, interview prep, and more!

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Jobs

AngelList : AngelList is a website for startups, angel investors, and job-seekers looking to work at startups.
CareerBuilder : CareerBuilder is one of the largest job boards, providing job listings, resume posting, and career advice and resources to job seekers.
Dice : Dice is the leading site for tech job seekers. You can search by company, job title, keyword, employment type, and location.
Devsnap : Devsnap is a job aggregator for developer jobs.
DevITjobs UK : Transparent job board for UK based developers
Glassdoor : Find the job that's right for you. Search all the open positions on the web. Get your own personalized salary estimate.
IAESTE : Find more and amazing international internships and jobs.
Indeed : Find international jobs on Indeed and get a market salary for your dedication and devotion.
Instahyre : Your dream job is here. Showcase yourself to a curated list of top companies. Complete privacy and no spam.
Mentat : Get your dream job 10x faster. Never apply for a job ever again, talk directly to decision-makers and hiring managers.
The Muse : Find everything you need to succeed from dream jobs to career advice. You can do a lot here on The Muse like exploring companies, browsing jobs, career advice, discover careers, career coaching. Try it.
Paysa : Paysa helps you in finding new and interesting jobs according to your wish.
SimplyHired : Simply Hired is a free job search engine (and mobile app) that takes the hassle out of getting hired and provides you with all the information you need to make a sound career move.
SwissDev Jobs : Tech job board for Software Engineers that want to work in Switzerland.
Undercover Recruiter : Become Recruiter, Candidate or Employer. You can get your job easily here.
Who is Hiring : An awesome resource for searching, filtering, and finding new and attractive jobs according to your needs and interests.
ZipRecruiter : The Smartest Way to Get Hired.
RemoteML : Remote Machine Learning jobs.
Linkedin jobs : A very nice research tool for programming jobs
GermanTech Jobs : Dedicated job board for tech roles in Germany - with salary brackets
We Work Remotely : The largest remote work community in the world.

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Special Thanks

Please consider a GitHub star if you find this useful and/or consider contributing.
A special thanks to Ashish Padalkar (@ashish2199) for contributing a great amount of data and structure to the initial repository Original Post.

Portfolio Website

Karan Sanghvi — Wed, 11 Jan 2023 05:39:26 +0000

After continuously working day and night since a week, I have hosted my portfolio website.
The link of the website is as follows:
my website

Have a look at it!🤩🤩

I would love to have your inputs on how can I make it better!! Do comment!!

Trapping Rainwater- Important Question For Interviews

Karan Sanghvi — Tue, 03 Jan 2023 06:11:53 +0000

The question which can be asked for this interview question is as follows:
Given "n" non-negative integers representing an elevation map where the width of each bar is 1, compute how much water it can trap after running.

Let's take an example:

In the above image, the height of these blocks is given in the form of array like, height = [4,2,0,6,3,2,5]

The height means from the ground till the top.
To calculate the trapped rainwater, the below formula we consider.
trapped rainwater = (w - x) * width of the bar
Where,
x = height of the block
w = water level
To construct the graph for trapping rainwater we consider some test cases. Below are some test cases to consider.

Case 1: Single Bar

In this case the water level will be 0 as water cannot get trapped.

Case 2: Two Bars

In this case the water level will be 0 as water cannot get trapped.

Case 3: Ascending Bars

In this case the water level will be 0 as water cannot get trapped.

Case 4: Descending Bars

In this case the water level will be 0 as water cannot get trapped.

Hence, considering all the test cases we come to a conclusion that:

Minimum number of bars > 2 to trap the water.
A bar should have unequal numbers of height of bars to trap the water.

Let's see one more example!

In such cases we have to count the height of the block which is minimum.
Hence the formula will be like:
Trapped Water = (Water Level - Height)
Where,
In Water level we count maxleft boundary and maxright boundary.

Let's see the code for trapping rainwater!

public class trappingrainwater {
    public static int trappedWater(int height[]) {
        //calculate left max boundary- array
        int n = height.length;
        int leftmax[] = new int [n];
        leftmax[0] = height[0];
        for(int i=1;i<n;i++) {
            leftmax[i] = Math.max(height[i], leftmax[i-1]);
        }
        //calculate right max boundary- array
        int rightmax[] = new int[n];
        rightmax[n-1] = height[n-1];
        for(int i=n-2;i>=0;i--) {
            rightmax[i] = Math.max(height[i], rightmax[i+1]);
        }
        int trappedWater = 0;
        //loop
        for(int i=0;i<n;i++) {
             //waterlevel = min(leftmax boundary, rightmax boundary)
            int waterlevel = Math.min(leftmax[i], rightmax[i]);
            //trapped water = waterlevel - height[i]
            trappedWater += waterlevel - height[i];
        }
        return trappedWater;
    }
    public static void main(String[] args) {
        int height[] = {4,2,0,6,3,2,5};
        System.out.println(trappedWater(height));
    }
}

How To Get The Best Logo For Your Brand?

Karan Sanghvi — Sat, 31 Dec 2022 12:04:30 +0000

The logo is the identity of your brand; that's why it's essential to make it unique and attractive.
These tools will help you to select, customize and download the best logo for your brand.

The tools are:

Turbologo [https://turbologo.com/]

Looka [https://looka.com/]

LogoMaker [https://www.logomaker.com/]

Logogenie [https://www.logogenie.net/]

Journey Of Being Diploma Computer Engineer 🎓

Karan Sanghvi — Thu, 15 Dec 2022 19:36:46 +0000

Dream Come True!🤩🎓
Struggling for three years in assignments, submissions, exams, projects and much more, finally made it being a "Diploma Graduate In Computer Engineering" from SVKM's Shri Bhagubhai Mafatlal Polytechnic on 24th November, 2022.
I have had the best three years of engineering in this college. These three years has taught me lots of important and interesting things which will be very helpful through my engineering life!! Never imagined that I would be so much interested in Web Development, Programming languages like C, C++, Python, Java. Application topics like Data Structures, .NET programming which includes VB.NET
, networking, maintaining a database in Oracle, Game Development, Hacking and much more!!
I would like to thank the Head Of Department of Computer Engineering Janardan Kulkarni for the constant support and guidance through my diploma journey. Would also like to thank the other teachers of Computer Engineering for the excellent teaching in all the different subjects in diploma.
A special thanks to my parents, family and friends for supporting me throughout. Means a lot!!
Now, heading towards getting my Btech Degree In Computer Engineering in the next 3 years!