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Open Source

May The Source Be With You! Articles about Open Source and Free Software as a philosophy, and its application to software development and project management.

submission guidelines

UPDATED APRIL 8, 2020

To keep this tag clean and meaningful, please ensure your post fits into at least one of the following categories:

Organizing, managing, running, or working in an Open Source project.
Open Source philosophy, licensing, and/or practical and legal topics thereof.
Advocacy and adoption of Open Source philosophy.

DO NOT use this tag if you are simply using technologies which happen to be open source.

You should NOT use this tag for any of the following:

Promoting open source projects, such as feature lists or announcements. (Use #news or Listings.)
Contributor requests. (Use #contributorswanted or Listings.)
Tutorials/articles that happen to use an open source tool. (Use appropriate technology tags.)
Showing off something you've built that happens to be open source. (Use the #showdev tag.)
Sharing lists of open source projects. (Use #githunt or the appropriate technology tags.)

Projects must comply with the Open Source Definition (see below) to legally use the term "open source".

As all "Free Software" officially complies with the standards of Open Source anyway, this tag covers both (collectively, FOSS).

about #opensource

Open Source is so much more than "you can read the code". It is formally defined by the Open Source Initiative.

"Open Source" should not be confused with the similar Free Software, which is defined by the Free Software Foundation. Generally, all Free Software is also Open Source, and the two camps often cooperate; however, the concepts are distinct! (The tags are merged here on DEV.to for simplicity, however.)

Open Source Hardware is defined and overseen by the Open Source Hardware Assocation

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Dec 16

Rerum: A Pattern Matching and Term Rewriting Library for Python

#python #programming #computerscience #opensource

2 min read

Michael Amachree

Dec 16

Day 2: The Secret Gift List (Purchase Tracker) 🎁

#svelte #opensource #programming #beginners

2 min read

Dec 17

Testing in Umami codebase - Part 1.2

#umami #opensource #testing #architecture

2 min read

Dec 16

Bugs across the world's languages. Let's check LanguageTool

#java #testing #opensource #languagetool

10 min read

Navneet Singh Rajput

Dec 15

I Launched a UI Library, Got 100+ Downloads But AI Couldn’t Understand My Docs

#opensource #react #ai #devto

1 min read

Dec 15

I Built CodeContext: An AI-Powered Tool That Analyzes Any Codebase in Seconds

#kotlin #opensource #devtools #ai

5 min read

Alan Tsai

Dec 15

An AI Almost Deleted My Code

#ai #opensource #devtools #programming

4 min read

Dec 16

Testing in Umami codebase - Part 1.1

#umami #opensource #testing #architecture

4 min read

Minimus

Dec 15

Sha1-Hulud 2.0 - The Second Coming: A Technical Breakdown

#security #opensource #devops #javascript

5 min read

Dec 17

Contributing to Ubuntu — Day 3: When I didn't touch code

#opensource #devjournal #ubuntu #community

6 min read

gamh5games

Dec 15

Designing Difficulty Curves That Work in Browser Platformer Games

#tutorial #devops #python #opensource

2 min read

Triple Gyrus Core

Dec 15

Toward Version 2 of Triple Gyrus Core with Community Feedback

#a11y #opensource

4 min read

Dec 15

Apache Dev List Digest: Iceberg, Polaris, Arrow & Parquet (Dec 9th - Dec15th, 2025)

#news #dataengineering #opensource

7 min read

Linuxano

Dec 16

Best WiFi Adapters That Actually Work on Linux (Tested & Explained)

#linux #opensource #wifi

2 min read

Jialu

Dec 17

TypeScript SDK for Building MCP Servers with type-safe decorators and streamable HTTP support

#ai #opensource #devops #typescript

4 min read

Edvin

Dec 15

I built the Ultimate Open Source YouTube Downloader (No Ads, Next.js 16) 🎥

#nextjs #react #opensource #webdev

2 min read

Coroot

Dec 15

Monitoring a Docker Homelab with Open Source

#devops #kubernetes #docker #opensource

5 min read

Alizetihr – Tech Talent Scouting

Dec 16

Why job boards are failing UX/UI designers (and what works better today)

#uxdesign #career #opensource #github

1 min read

Dec 16

NVIDIA launches Nemotron 3 open models in Nano, Super, and Ultra sizes foradvanced agentic AI

#news #ai #agents #opensource

2 min read

Peter Pagano@SpeckOs

Dec 15

Speck.js: AI Agents with Persistent Memory in One Line of Code

#webdev #javascript #ai #opensource

2 min read

Dec 15

Open Source AI tool that gives your coding agents DevOps superpowers

#ai #devops #aws #opensource

2 min read

Dmitriy A. for Globalping

Dec 15

Geolocate any IP using latency

#networking #opensource #network #tooling

7 min read

Sylvester Promise

Dec 15

Day 25 of improving my Data Science skills

#discuss #ai #productivity #opensource

1 min read

sentomk

Dec 15

Patternia - A zero-overhead pattern matching library for C++ with powerful features like generics and structural binding.

#cpp #opensource

1 min read

axevora

Dec 15

🛠️ I Got Tired of Using 10 Different Websites — So I Built One

#ai #productivity #opensource #startup

1 min read

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