Client-Side Developer Tools

All tools on this page run entirely in your browser - no data is sent to any server. Your privacy and security are guaranteed.

Available as a Progressive Web App (PWA) - Install these tools on your device for offline access and native app-like experience!

Security Tools

• Password Generator - Generate strong, secure passwords with customizable options
• UUID Generator - Generate universally unique identifiers (UUIDs) in multiple formats

Format Converters

• JSON to YAML Converter - Convert JSON data to YAML format and vice versa
• All-in-One Data Converter - Convert between various data formats (CSV, JSON, XML, etc.)

Development Utilities

• Jinja2 Template Tester - Test Jinja2 templates directly in your browser
• GCSE Math Reference - Quick reference for GCSE mathematics formulas

Text Processing Tools

• Regex Tester - Test regular expressions with real-time feedback
• Base64 Encoder/Decoder - Encode and decode Base64 data
• Markdown to PDF Converter - Convert Markdown documents to PDF files
• Code Formatter - Format code in various languages (JSON, YAML, XML, SQL, HTML, CSS)

Developer Cheatsheets

• Cheatsheet Collection - Quick references for common developer tasks
  • HTML Cheatsheet - Essential HTML tags and elements
  • CSS Cheatsheet - Common CSS properties and layout techniques
  • JavaScript Cheatsheet - Key JavaScript syntax and methods
  • Git Cheatsheet - Essential Git commands for version control
  • SQL Cheatsheet - Common SQL queries and operations
  • Docker Cheatsheet - Essential Docker commands
  • Regex Cheatsheet - Common regular expressions
  • HTTP Status Codes - Quick reference for HTTP status codes

These tools are designed to be lightweight, fast, and completely client-side. They use modern web technologies including HTML5, CSS3, and JavaScript ES6+ features. Some tools will leverage WebAssembly for more complex operations while maintaining client-side execution.