Code Formatter — Beautify HTML, CSS, JS, XML & SQL Code
Professional code formatter and beautifier for web developers. Format, beautify, and minify HTML, CSS, JavaScript, XML, and SQL code with customizable indentation. The tool can auto-format as you type and supports both beautification for development and minification for production (JavaScript minification uses Terser). Perfect for cleaning up messy code, standardizing formatting, or preparing code for deployment.
Client-Side Only
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Features
- HTML, CSS, JavaScript, XML, SQL formatting
- Beautify and minify modes
- Customizable indentation (2/4 spaces, tabs)
- Real-time auto-formatting
- JavaScript minification powered by Terser
- Copy and download support
Common Use Cases
Development
- Beautify minified code for easier reading and debugging
- Standardize code formatting across your team
- Clean up messy or auto-generated code
- Format code before committing to version control
Production
- Minify code to reduce file size and improve load times
- Prepare code for deployment
- Optimize bandwidth usage
- Improve website performance
Useful Resources
Wikipedia: Pretty-printing Beginner-friendly introduction to code formatting and pretty-printing
MDN JavaScript Reference Complete guide to JavaScript syntax and best practices
W3C CSS Specifications Official CSS standards and formatting guidelines
HTML Living Standard Current HTML specification and syntax rules
W3C XML Specification Extensible Markup Language (XML) standard