DEV Community: Vinkal Prajapati

🚀 Advanced Typing Speed Test Tool

Vinkal Prajapati — Mon, 28 Jul 2025 06:14:05 +0000

A feature-rich, professional typing speed test web app designed for both beginners and advanced typists. Built with HTML, CSS, and JavaScript, this tool offers real-time tracking, multi-language support, and a clean, responsive UI.

✅ Key Features

🔹 Basic Features

📜 Random Text Display: 30–50 words ke dynamic paragraphs (Hindi & English).

⌨️ Typing Input Box: Live validation with red underline for wrong words.

⏱️ Timer Options: 30 sec / 1 min / 2 min + default 1-minute test.

📊 Result Summary:

WPM (Words Per Minute)

Accuracy (%)

Typed Characters Count

🔹 Advanced Features
📈 Live WPM & Accuracy Tracker: Real-time updates while typing.

📉 Progress Bar: Text completion percentage in real-time.

✍️ Custom Text Mode: Paste your own paragraph to practice.

🎨 Mistake Highlight & Replay: Wrong words color-coded + replay option.

🏆 Leaderboard (Local Storage): Top 5 scores auto-save.

🌗 Theme Modes: Light, Dark & Neon toggle.

🎹 Keyboard Highlighting: Virtual on-screen keyboard with key press effects.

📊 Result Chart: Speed & accuracy graph using Chart.js.

🔊 Sound Effects: Subtle audio feedback on keypress & timer end.

📱 Mobile Responsive UI: Optimized for touch devices.

🔹 Extra Professional Features
🌐 Multi-Language Support: Auto-detect Hindi, English & custom text.

🎯 Difficulty Levels: Easy / Medium / Hard word sets.

📝 Practice vs Exam Mode:

Practice Mode: Flexible time.

Exam Mode: Strict timer + No Backspace option.

📄 Download Result PDF: Export test summary.

👤 User Profile System: Enter name & track personal scores.

🎨 UI/UX Highlights
🖥️ Clean Layout:

Left: Paragraph & Progress Bar.

Right: Timer, WPM & Accuracy counters.

🎨 Color Themes:

Light Mode: White + Blue/Green buttons.

Dark Mode: Black + Neon highlights.

🔤 Monospace Fonts: Perfect for typing accuracy (e.g., Roboto Mono).

✨ Smooth Animations: Start, progress & result screen transitions.

🛠️ Technical Stack
Languages: HTML + CSS + JavaScript (Pure JS / React.js compatible).

Libraries:

Chart.js – For graphical result summary.

LocalStorage API – For leaderboard tracking.

Howler.js – Optional sound effects.

✅ Development Checklist
✔️ Random + Custom Text Support
✔️ Timer Options & Countdown
✔️ Real-Time WPM & Accuracy Tracker
✔️ Mistake Highlight + Replay
✔️ Progress Bar & Result Summary
✔️ Local Leaderboard (Top 5 Scores)
✔️ Theme Toggle (Dark/Light/Neon)
✔️ Keyboard Highlight Animation
✔️ PDF Download Option
✔️ Fully Mobile Responsive

🔥 Perfect For:
✅ Students improving typing skills
✅ Competitive exam preparation
✅ Typing practice in Hindi & English
✅ Fun speed challenges with friends

📌 Live Demo & Source Code:
Coming soon

Interactive Particles Background Hero

Vinkal Prajapati — Mon, 28 Jul 2025 05:07:05 +0000

📌 Description:

This project is a modern full-screen hero section featuring an interactive particles background built using the HTML5 Canvas API. The particles move dynamically across the screen, and when the user moves their mouse, they interact with the cursor, creating a smooth animated network effect.

✨ Features:

✅ Fullscreen responsive hero section
✅ Dynamic canvas-based particle animation
✅ Mouse interaction (particles are attracted to the cursor)
✅ Particle-to-particle connecting lines for a network effect
✅ Gradient text with a stylish CTA button
✅ Fully responsive for desktop and mobile devices

🔧 Technologies Used:

HTML5 – Page structure

*CSS3 *– Styling and responsive layout

JavaScript (Canvas API) – Particles animation and interactivity

🎨 How It Works:
1️⃣ The script generates 100 particles that move randomly across the canvas.
2️⃣ When the mouse moves, nearby particles are gently attracted towards the cursor.
3️⃣ If two particles are close enough, a subtle line is drawn between them to create a network effect.
4️⃣ The hero text and call-to-action button are placed on top of the canvas using z-index.

📱 Responsive Design:

Large heading and content for desktop

Automatically scales down for mobile screens

💡 Use Cases:

✅ Landing page hero sections
✅ Portfolio and creative websites
✅ Tech startup homepages or web apps

Apple calculator

Vinkal Prajapati — Fri, 26 Jul 2024 05:00:32 +0000

Apple-style Calculator App

Overview

This project showcases a meticulously crafted calculator application that emulates the sleek design and functionality of Apple's iconic calculator. Built entirely with front-end web technologies, it demonstrates proficiency in creating visually appealing and functional user interfaces.

Tech Stack

HTML5
CSS3
Vanilla JavaScript

Key Features

1. Aesthetic Design

Color Scheme: Utilizes a dark theme with carefully selected colors:
- Background: #000000
- Function Buttons: #a5a5a5
- Operation Buttons: #ff9f0a
- Number Buttons: #333333
Typography: Employs the San Francisco font family, mirroring Apple's signature typeface
Layout: Implements a grid-based button layout with precision spacing

2. Responsive UI Elements

Circular buttons with a 50% border-radius for that distinctive Apple look
Hover and active states for enhanced user feedback
Smooth transitions for a polished user experience

3. Functional Prowess

Arithmetic operations: Addition, Subtraction, Multiplication, Division
Advanced functions: Percentage calculation, Sign toggling
Real-time display updates with overflow handling

4. Attention to Detail

Zero button spans two columns, adhering to Apple's design
Display text aligns to the right, matching the original calculator
Subtle box-shadow for depth and elevation

Implementation Highlights

CSS Mastery

Utilizes CSS Grid for precise button layout
Implements flexbox for centering the calculator on the page
Employs CSS transitions for smooth visual feedback

JavaScript Efficiency

Modular functions for each calculator operation
State management for handling complex calculations
Event-driven architecture for responsive user interactions

Responsive Design

Adapts seamlessly to various screen sizes
Maintains aspect ratio and usability across devices

Future Enhancements

Implement scientific calculator functions
Add keyboard support for improved accessibility
Introduce themes for personalization

This calculator project not only replicates the functionality of a standard calculator but elevates the user experience through its attention to design details and smooth interactions, showcasing a blend of technical skill and design sensibility.

Eternal Love Proposal

Vinkal Prajapati — Thu, 25 Jul 2024 11:42:21 +0000

Description:
"Love Confession" is an interactive web program designed to express romantic feelings in a playful and engaging manner. The program presents a sequence of questions and responses that guide the user through a fun and light-hearted interaction. It features various animated GIFs, emojis, and sound effects to enhance the user experience. The program's main goal is to create a memorable and entertaining way to confess love.

How It Works:
The program starts by asking the user a simple question, "Do you love me?" The user is given two options to respond: "Yes" or "No." Depending on the user's choice, different scenarios are presented, each accompanied by relevant GIFs, text, and sound effects.

Key Features:
Animated GIFs and Emojis: The program uses animated GIFs and emojis to convey emotions and make the interaction more lively.
Sound Effects: Specific actions trigger sound effects, enhancing the overall experience.
Dynamic Responses: The user's choices lead to different outcomes, making the interaction unique each time.
Interactive Buttons: The "No" button moves to a random position if the user hovers over or touches it, adding a playful twist.
Code Explanation:
HTML Structure:

The HTML document is structured with a DOCTYPE declaration, head, and body.
The head contains metadata, the title, and style definitions.
The body contains a container div with various sections (initial question, love response, please think again, final plea, last chance) that are displayed based on user interactions.
CSS Styling:

The CSS styles define the visual appearance of the page, including background color, font styles, and layout.
Classes like .container, .btn, .gif-image, and .emoji are used to style different elements.
JavaScript Functions:

The JavaScript functions control the interaction logic.
loveResponse(answer): Handles the user's response to the initial question.
finalPlea(): Displays the final plea message.
lastChance(): Displays the last chance message.
hideAll(): Hides all sections.
moveButton(event) and moveButtonMobile(event): Move the "No" button to a random position when hovered over or touched.

Personal Finance Tracker: Manage Your Income and Expenses Efficiently

Vinkal Prajapati — Mon, 22 Jul 2024 06:37:34 +0000

Description:
Introducing the Personal Finance Tracker, a comprehensive tool designed to help you manage your finances effortlessly. This web-based application allows you to keep track of your income and expenses, view transaction history, and analyze your monthly financial data with ease. Built with simplicity and functionality in mind, the Personal Finance Tracker is perfect for individuals who want to gain better control over their financial health.

Key Features:
Add New Transactions: Easily add income and expense transactions by providing a description and amount. Select the type of transaction (income or expense) to categorize your entries accurately.
Transaction History: View a detailed history of all your transactions, including descriptions, amounts, types, and timestamps. Edit transactions directly from the history table.
Monthly Analysis: Visualize your financial data with a monthly analysis chart that highlights your total income and expenses. This helps you understand your spending patterns and make informed financial decisions.
User-Friendly Interface: The application features a clean and intuitive interface, making it easy for users of all technical levels to navigate and manage their finances.
Responsive Design: The layout is fully responsive, ensuring a seamless experience on both desktop and mobile devices.
How It Works:
Adding Transactions:

Navigate to the "Add New Transaction" section.
Enter a description for the transaction.
Input the amount and select the type (income or expense).
Click "Add Transaction" to save the entry. A confirmation message will appear to indicate successful addition.
Viewing and Editing Transactions:

All transactions are displayed in the "Transaction History" table.
Each entry shows the description, amount, type, and timestamp.
To edit a transaction, click the edit icon (✏️) next to the respective entry. This opens a modal where you can update the transaction details and save the changes.
Analyzing Monthly Data:

The "Monthly Analysis" section features a bar chart that visualizes your total income and expenses for the current month.
The chart dynamically updates as you add or edit transactions, providing real-time insights into your financial status.
Behind the Scenes:
The Personal Finance Tracker is built using HTML, CSS, and JavaScript. Here’s a breakdown of the key components:

HTML: Structures the application’s content, including forms, tables, and modals.
CSS: Styles the application to ensure a polished and user-friendly interface. The design is responsive, catering to both desktop and mobile users.
JavaScript: Handles the application’s functionality, including form submissions, transaction management, and chart updates. The application uses Chart.js to render the monthly analysis chart.
Future Enhancements:
Local Storage Integration: Implementing local storage to save transactions so they persist across page reloads.
Input Validation: Enhancing validation to prevent incorrect data entry (e.g., negative amounts for income).
Enhanced Notifications: Adding temporary notifications for better feedback on actions such as adding or editing transactions.
Accessibility Improvements: Ensuring the application is fully accessible by adding ARIA labels and improving keyboard navigation.
By sharing this project, I hope to inspire others to take control of their finances and explore the possibilities of web development. Feel free to try out the Personal Finance Tracker, provide feedback, and contribute to its development. Happy tracking!

Death Calculator

Vinkal Prajapati — Sat, 22 Jun 2024 02:23:05 +0000

EMI Calculator

Vinkal Prajapati — Mon, 03 Jun 2024 01:32:45 +0000

Overview of the Responsive EMI Calculator
Purpose:
The purpose of this EMI (Equated Monthly Installment) Calculator is to help users easily calculate their monthly EMI payments for a loan based on the loan amount, annual interest rate, and loan tenure. This tool is particularly useful for individuals who are planning to take a loan and want to understand their monthly repayment obligations.

Features:
Responsive Design: The calculator is designed to be fully responsive, ensuring it looks good and functions well on devices of all sizes, including phones, tablets, and laptops.
User-Friendly Interface: The interface is clean and easy to navigate, with clear labels and input fields.
Default Values: Default loan amounts are provided for quick selection, making it easier for users to input common values without typing.
Dynamic Chart: A pie chart dynamically displays the breakdown of the principal loan amount and the total interest, helping users visualize their payment structure.
Real-Time Calculation: Calculations are updated in real-time whenever the user changes input values or presses the "Enter" key.
Detailed Results: Detailed breakdown of the EMI calculation, including total payment and total interest, is provided.
How It Works:
Input Fields: Users enter the loan amount, annual interest rate, and loan tenure in the respective input fields. Default values are provided below the loan amount input for quick selection.
Calculation Trigger:
Users can click the "Calculate" button to trigger the calculation.
Alternatively, pressing the "Enter" key will also trigger the calculation.
EMI Calculation: The calculator uses the standard EMI formula:
𝐸
𝑀

𝐼

𝑃
×
𝑟
×
(
1
+
𝑟
)
𝑛
(
1
+
𝑟
)
𝑛
−
1
EMI=
(1+r)
n
−1
P×r×(1+r)
n

where
𝑃
P is the loan amount,
𝑟
r is the monthly interest rate, and
𝑛
n is the total number of monthly installments.
Result Display: The calculated EMI amount is displayed prominently. Detailed information including the total payment, total interest, loan amount, annual interest rate, and loan tenure is shown below.
Dynamic Chart: A pie chart is generated to visually represent the proportion of the principal loan amount to the total interest. The chart is refreshed dynamically whenever the calculation is triggered.
Responsive Layout:
On larger screens (e.g., laptops), the calculator and the result (including the chart) are displayed side by side.
On smaller screens (e.g., phones), the calculator is displayed on top, followed by the detailed results and the chart below.
Code Explanation:
HTML Structure: The HTML structure includes input fields for loan amount, annual interest rate, and loan tenure. Default values are provided as clickable options. The calculation button and result display area are also included.
CSS Styling: The CSS ensures a clean and responsive layout, adjusting the display based on screen size.
JavaScript Functionality:
The calculateEMI function performs the EMI calculation, updates the result display, and refreshes the chart.
The setDefaultValue function allows users to quickly set the loan amount using the default values.
The formatRupee function formats numbers as Indian Rupees.
An event listener is added to trigger the calculation when the "Enter" key is pressed.
Conclusion:
This EMI Calculator is a robust, user-friendly tool designed to help users quickly and accurately calculate their monthly loan payments. Its responsive design, real-time calculations, and visual representation of data make it an invaluable resource for anyone considering a loan.

Retirement Calculator

Vinkal Prajapati — Sun, 02 Jun 2024 02:42:00 +0000

The Retirement Calculator is a web application designed to help users estimate their retirement corpus based on various financial parameters. Users input their current age, retirement age, monthly savings, and expected return rate, and the calculator provides an estimate of their retirement corpus.

Usage:

Input Parameters: Users enter their current age, retirement age, monthly savings, and expected return rate into the respective input fields.

Calculation: Upon clicking the "Calculate" button, the application computes the future value of investments over the years until retirement based on the provided parameters.

Result Display: The estimated retirement corpus is displayed below the input fields.

Chart Visualization: Additionally, a chart is generated to visually represent the monthly investment and accumulated corpus over time.

Dynamic Updates: The chart updates dynamically whenever new values are inputted, providing users with real-time visual feedback.

Benefits:

Financial Planning: Helps users plan for their retirement by providing an estimate of their future financial resources.

Visual Representation: The chart offers a clear visual representation of how their investments grow over time, aiding in better understanding and decision-making.

User-Friendly: Simple and intuitive interface makes it easy for users to input their data and interpret the results.

Future Enhancements:

Additional Features: Incorporating additional features such as expense projections, inflation adjustments, and alternative investment scenarios.

Improved Responsiveness: Enhancing the responsiveness of the application for better usability across various devices and screen sizes.

Customization Options: Adding options for users to customize their inputs and chart preferences according to their specific needs and preferences.

SIP Calculator

Vinkal Prajapati — Sun, 02 Jun 2024 01:53:11 +0000

Plan your financial future with our easy-to-use SIP Calculator. Calculate the future value of your Systematic Investment Plan (SIP) investments by inputting your monthly investment amount, expected annual return rate, and investment duration. Our clean and intuitive interface ensures that you can quickly and accurately determine how much your investments will grow over time. Ideal for those looking to make informed decisions about their savings and investment strategies, our SIP Calculator is a must-have tool for achieving your financial goals. Start planning today and see how your regular investments can yield substantial returns over the years.

Quiz Application

Vinkal Prajapati — Sun, 10 Mar 2024 09:16:31 +0000

HTML (index.html):

: Ek container div jismein saara content rakha gaya hai.
: Div jo question ko display karta hai, options ke container ke saath.

: Heading element jismein current question display hota hai.
: Div jismein options ke buttons display hote hain.
: Button jo next question ko display karta hai ya quiz ko restart karta hai.

: Paragraph element jo user ka score display karta hai.
CSS (styles.css):

.container, .question-container: Styling for the main container and question container divs.
h1: Styling for the question display heading.
.options, .option: Styling for the options container and option buttons.
.correct, .wrong: Styling for the correct and wrong answer buttons.
button: Styling for the next button.
JavaScript (script.js):

fetchQuestions(): Function to fetch random questions from the API.
displayQuestion(): Function to display the current question and options.
checkAnswer(): Function to check the correctness of the selected answer and update the score.
updateScore(): Function to update the displayed score.
disableOptions(): Function to disable option buttons after an answer is selected.
nextButton.addEventListener('click'): Event listener to handle the functionality of the next button.
Yeh sabhi elements aur functionality milke ek quiz application banate hain jo users ko general knowledge ke sawal jawab karne ki suvidha pradan karta hai, saath hi unka score track karta hai.

Parallax 3D Cards Carousel | swiper.js

Vinkal Prajapati — Thu, 15 Feb 2024 15:43:08 +0000

Responsive cards carousel utilizing a coverflow effect, parallax and some 3d built with swiper.js.

Neumorphic Loan Calculator

Vinkal Prajapati — Tue, 30 Jan 2024 15:01:34 +0000

Check out this Pen I made!

Neumorphic Loan Calculator

This HTML, CSS, and JavaScript code presents a clean and modern Loan Calculator with a Neumorphism design. Users can input the loan amount, annual interest rate, and loan term, and the calculator provides the monthly payment in Indian Rupees.

Features

Neumorphic design for a visually appealing and modern UI.
Simple input fields for loan amount, annual interest rate, and loan term.
Responsive layout for a seamless user experience.
Real-time calculation of the monthly payment.
Clear and intuitive user interface.

DEV Community: Vinkal Prajapati

🚀 Advanced Typing Speed Test Tool

✅ Key Features

📊 Result Summary:

Interactive Particles Background Hero

📌 Description:

✨ Features:

🔧 Technologies Used:

📱 Responsive Design:

💡 Use Cases:

Apple calculator

Apple-style Calculator App

Overview

Tech Stack

Key Features

1. Aesthetic Design

2. Responsive UI Elements

3. Functional Prowess

4. Attention to Detail

Implementation Highlights

CSS Mastery

JavaScript Efficiency

Responsive Design

Future Enhancements

Eternal Love Proposal

Personal Finance Tracker: Manage Your Income and Expenses Efficiently

Death Calculator

EMI Calculator

𝐼

Retirement Calculator

SIP Calculator

Quiz Application

: Heading element jismein current question display hota hai. : Div jismein options ke buttons display hote hain. : Button jo next question ko display karta hai ya quiz ko restart karta hai.

Parallax 3D Cards Carousel | swiper.js

Neumorphic Loan Calculator

Neumorphic Loan Calculator

Features

: Heading element jismein current question display hota hai.
: Div jismein options ke buttons display hote hain.
: Button jo next question ko display karta hai ya quiz ko restart karta hai.