Developer Playground
Free tools for modern web development
A collection of powerful, free tools to help you create accessible, beautiful, and well-formatted web applications
Powerful Tools at Your Fingertips
Everything you need to build modern, accessible web applications
Accessibility Code Playground
Create and share accessible web components with live preview, accessibility checks, and best practices.
JavaScript Code Formatter
Professional code formatting powered by Prettier. Format JavaScript with customizable options including indentation, quotes, semicolons, and more.
JSON Formatter
Format, validate, and beautify JSON with customizable options. Sort keys, minify, compact arrays, and more. Perfect for API debugging and data formatting.
JavaScript Minifier
Compress and optimize JavaScript code with Terser. Mangle variables, remove comments, eliminate dead code, and reduce file size for production builds.
Favicon Generator
Create favicons and app icons from images or text. Generate multiple sizes for iOS, Android, PWA, and web with customizable colors and styling options.
Card Generator
Design beautiful cards with live preview. Get CSS or Tailwind code instantly. Customize colors, shadows, borders, padding, and add images or buttons.
Placeholder Image Generator
Create custom placeholder images with custom dimensions, text, colors, and gradients. Download as PNG, JPEG, or WebP with data URL support.
Color Palette Generator
Create beautiful color schemes with harmony rules, WCAG contrast checks, and multiple export formats. Generate monochromatic, analogous, complementary, and more.
Glassmorphism / Neumorphism CSS Generator
Create stunning glassmorphism and neumorphism effects with live preview. Customize blur, transparency, shadows, and export as CSS or Tailwind.
Database Schema Generator
Visual database designer with drag-and-drop interface. Create tables, define relationships, and export to SQL for PostgreSQL, MySQL, or SQLite.
SVG Illustrator Generator
Create custom SVG illustrations with shapes, text, and paths. Design vector graphics with live preview and instant SVG code export.
Why Choose Our Tools?
Built for developers, by developers. Fast, free, and focused on privacy.
Lightning Fast
All tools run instantly in your browser. No server delays, no uploads, complete privacy for your code and data.
100% Free Forever
No hidden fees, no subscriptions, no limits. Professional-grade tools accessible to everyone, always free.
Privacy First
Your code never leaves your device. All processing happens locally in your browser for complete security.
Perfect For Everyone
From solo developers to large teams, our tools work for everyone
Web Developers
Format code, minify JS, create favicons, and build accessible components
Designers
Generate placeholder images, create custom cards, and design app icons
Students
Learn web accessibility, practice code formatting, and experiment safely
Teams
Share accessible components, standardize code style, optimize assets
Frequently Asked Questions
Everything you need to know about our tools
Are these tools really free?
Yes! All our developer tools are 100% free with no hidden costs, subscriptions, or usage limits. We believe in making professional development tools accessible to everyone.
Is my code secure and private?
Absolutely. All tools run entirely in your browser - your code never leaves your device. We don't store, track, or have access to any code you format, minify, or generate.
Do I need to create an account?
No account needed! All tools work instantly without registration. For the Accessibility Playground, you only need an account if you want to save and share your creations.
What browsers are supported?
Our tools work on all modern browsers including Chrome, Firefox, Safari, and Edge. For the best experience, we recommend using the latest version of your browser.
Can I use these tools for commercial projects?
Yes! Use our tools for personal, commercial, or any other projects. There are no licensing restrictions or attribution requirements.
How do I report bugs or request features?
We'd love to hear from you! Visit halfAccessible.com to contact us with feedback, bug reports, or feature requests.