DevToolkit

Transform your browser into a powerful development workspace with DevToolkit - a beautiful, fast, and privacy-focused toolkit that combines essential string transformations and number utilities. Everything you need for daily development work, right at your fingertips.

✨ KEY FEATURES

🔤 STRING UTILITIES - 16 Powerful Transformations

Case Transformations:
• UPPERCASE - Convert all text to uppercase letters
• lowercase - Convert all text to lowercase letters
• Capitalize - Make the first letter of text uppercase
• Title Case - Capitalize the first letter of each word
• camelCase - Convert text to camelCase format for JavaScript variables
• snake_case - Convert text to snake_case format for Python/database naming
• kebab-case - Convert text to kebab-case format for URLs and CSS classes

Text Manipulation:
• Reverse - Reverse the order of characters in your text
• Trim - Remove leading and trailing whitespace
• Remove Spaces - Strip all spaces from text
• Remove Duplicates - Remove duplicate lines from multi-line text

Encoding & Formatting:
• URL Encode - Encode text for safe URL usage
• URL Decode - Decode URL-encoded text back to readable format
• Base64 Encode - Encode text to Base64 format
• Base64 Decode - Decode Base64 encoded text
• Slugify - Convert text to URL-friendly slugs (hello-world-format)

🔢 NUMBER UTILITIES - Complete Mathematical Toolkit

🧮 Full-Featured Calculator:
• Basic Operations: Addition, Subtraction, Multiplication, Division
• Decimal Support: Work with floating-point numbers
• Percentage Calculations: Quick percentage operations
• Memory Functions: Clear and backspace for easy corrections
• Live Expression Display: See your calculation as you build it (e.g., "2 + 3")
• Keyboard Support: Type directly on your keyboard - no mouse needed!

Calculator Keyboard Shortcuts:
• 0-9: Number input
• +, -, *, /: Mathematical operations
• Enter or =: Calculate result
• Backspace: Delete last digit
• Escape or C: Clear calculator
• .: Decimal point
• %: Percentage

🔄 Number Base Converters:
Convert numbers between different number systems instantly:
• Binary (Base 2) - Perfect for bit operations and computer science
• Octal (Base 8) - Unix permissions and legacy systems
• Decimal (Base 10) - Standard number system
• Hexadecimal (Base 16) - Color codes, memory addresses, and more

Smart Input Detection:
• Automatic detection of input format (0b for binary, 0o for octal, 0x for hex)
• One-click copy buttons for each conversion
• Real-time conversion as you type

📐 Math Operations:
• Square Root (√) - Calculate √x with precision
• Square (x²) - Calculate x squared
• Percentage Calculator - Find x% of y
• Sum Calculator - Add comma-separated numbers (e.g., 1,2,3,4,5)
• Instant results with copy functionality

📊 REAL-TIME TEXT ANALYSIS

Get instant insights about your text:
• Character Count - Total characters including spaces
• Word Count - Number of words in your text
• Line Count - Number of lines
• Unique Characters - Count of distinct characters
• Number Count - How many digits are in the text
• Space Count - Total spaces
• Uppercase Letters - Count of capital letters
• Lowercase Letters - Count of small letters
• Special Characters - Punctuation and symbols

Perfect for:
• Meeting character limits (Twitter, SMS, meta descriptions)
• Writing requirements (essays, articles, blog posts)
• Code review and documentation
• Data validation and quality checks

📈 USAGE STATISTICS

Track your productivity:
• Daily Operations Counter - Resets at midnight
• Total Operations Counter - Lifetime statistics
• Beautiful animated number displays
• No data sent anywhere - all stored locally on your device

🎨 BEAUTIFUL DESIGN

• Modern gradient theme (Indigo → Violet → Fuchsia)
• Smooth animations and transitions
• Clean, intuitive tabbed interface
• Responsive design that adapts to your workflow
• Professional UI inspired by modern design principles

🚀 USE CASES

For Developers:
• Convert variable naming conventions (camelCase ↔ snake_case ↔ kebab-case)
• Encode/decode URLs and Base64 for API testing
• Calculate percentages for CSS layouts and responsive design
• Convert between number bases for low-level programming
• Quick math operations without leaving your browser
• Generate URL-friendly slugs for routes and endpoints

For Content Creators:
• Format text for different platforms
• Count words and characters for content requirements
• Create SEO-friendly URLs with slugify
• Remove duplicate lines from lists
• Text analysis for optimization

For Students:
• Math calculations and base conversions
• Text transformations for assignments
• Character counting for essay requirements
• Quick reference for encoding formats

For Everyone:
• Basic calculator always at hand
• Text formatting and cleanup
• Copy/paste utilities
• Number conversions for daily tasks

🔒 PRIVACY & SECURITY - YOUR DATA STAYS YOURS

100% Private & Secure:
✅ All processing happens locally in your browser
✅ Zero data collection - we don't track anything
✅ No external API calls or network requests
✅ No analytics, no tracking, no third-party services
✅ Open source - verify the code yourself
✅ Minimal permissions - only clipboardWrite and storage

What We DON'T Do:
❌ No data collection
❌ No browsing history tracking
❌ No external server communication
❌ No user profiling
❌ No data selling
❌ No advertisements

Local Storage:
The only data stored is your usage statistics (operation counts), which:
• Lives only on your device
• Never transmitted anywhere
• Can be cleared by uninstalling the extension
• Used only to show you your productivity stats

⚡ PERFORMANCE

• Lightning Fast: All operations execute instantly
• Lightweight: Under 100KB total size
• No Dependencies: Pure vanilla JavaScript
• Offline Ready: Works without internet connection
• Low Memory: Minimal resource usage
• Battery Friendly: Efficient code that doesn't drain power

🎯 WHY CHOOSE DEVTOOLKIT?

All-in-One Solution:
Instead of opening multiple websites or apps for different tasks, get everything in one place. One click on your browser toolbar gives you access to 35+ utility functions.

Speed & Efficiency:
No page loads, no waiting, no ads. Instant access to tools you use every day.

Privacy First:
Unlike online tools, your data never leaves your computer. No login required, no tracking, no compromises.

Professional Quality:
Built by developers, for developers. Clean code, comprehensive testing (138 test cases), and attention to detail.

Open Source:
Full transparency. Review the code, contribute improvements, or customize for your needs.
GitHub: https://github.com/iHiteshAgrawal/DevToolkit

🛠️ TECHNICAL DETAILS

Technologies:
• Pure Vanilla JavaScript - No frameworks, no bloat
• Chrome Extension Manifest V3 - Latest standard
• CSS3 - Modern gradients and animations
• 100% Client-Side - No backend required

Quality:
• 138 Comprehensive Test Cases
• 100% Function Coverage
• ~1,500 Lines of Code
• Well-documented and maintainable

Compatibility:
• Chrome (recommended)
• Edge (Chromium-based)
• Brave
• Opera
• Any Chromium-based browser

📖 HOW TO USE

1. Install the Extension
Click "Add to Chrome" and pin it to your toolbar for easy access

2. Choose Your Tool
• Strings Tab: Text transformations and analysis
• Numbers Tab: Calculator, converters, and math operations

3. Work Efficiently
• Type or paste your input
• Click a transformation or use the calculator
• Copy results with one click
• Track your productivity with built-in stats

Pro Tips:
• Pin the extension to your toolbar for quick access
• Use keyboard shortcuts in the calculator (just start typing!)
• Copy individual conversion results with dedicated buttons
• Export text transformations for later use

🎓 PERFECT FOR

• Software Developers & Engineers
• Web Designers & Front-end Developers
• Content Writers & Copywriters
• Students & Researchers
• Data Analysts
• SEO Specialists
• Social Media Managers
• Anyone who works with text and numbers!

⭐ FEATURES SUMMARY

String Operations: 16
Number Utilities: 19+
Total Functions: 35+
Test Cases: 138
Data Collection: ZERO
Privacy: 100%
Price: FREE Forever

🔄 REGULAR UPDATES

We're constantly improving DevToolkit based on user feedback. Upcoming features:
• Temperature converter (°C ↔ °F)
• Unit converter (metric ↔ imperial)
• JSON formatter and validator
• Color converter (RGB, HEX, HSL)
• Hash generators (MD5, SHA)
• And more!

💬 SUPPORT & FEEDBACK

Need Help?
• Visit our GitHub repository for documentation
• Report bugs or request features via GitHub Issues
• Check out our comprehensive README and guides

Love DevToolkit?
• Leave a 5-star review
• Share with fellow developers
• Star us on GitHub
• Spread the word!

📜 LICENSE & CREDITS

• MIT License - Free to use
• Open Source - github.com/iHiteshAgrawal/DevToolkit
• Made with ❤️ by Hitesh Agrawal (@iHiteshAgrawal)

🚀 GET STARTED NOW

Install DevToolkit today and transform your browser into a powerful development workspace. Join thousands of developers who trust DevToolkit for their daily workflow.

- No registration. No tracking. Just tools that work.
- Click "Add to Chrome" to get started in seconds!

DevToolkit - Essential tools for essential work.
🔒 Privacy-Focused • ⚡ Lightning Fast • 🎨 Beautiful Design • 💯 Free Forever