What this tool does
Format and beautify your code with customizable options. Supports 15+ programming languages with auto-detection. All processing happens locally in your browser.
JS, TS, HTML, CSS, JSON, and more
Tab width, quotes, semicolons
Format or compress your code
Color-coded output preview
Formatting Options
Input Code
Formatted Output
Formatted code will appear here
Supported Languages
Tips
About Code Formatter & Beautifier
Format and beautify your code with our free online code formatter. Supports 15+ programming languages including JavaScript, TypeScript, HTML, CSS, SCSS, Less, JSON, YAML, Markdown, GraphQL, SQL, Java, C#, PHP, Go, Ruby, and Python. Powered by Prettier for professional-grade formatting. Customize tab width, indentation style, print width, quote style, semicolons, and trailing commas. Switch between beautify mode for readable code or minify mode to reduce file size. Features automatic language detection, syntax highlighting, copy to clipboard, and file download. All processing happens locally in your browser - your code never leaves your device.
Supported Languages
Full Prettier Support
JavaScript, TypeScript, JSON, HTML, CSS, SCSS, Less, Markdown, YAML, GraphQL - these languages use Prettier for professional-grade formatting with all options.
Basic Formatting
SQL, Java, C#, PHP, Go, Ruby, Python - these languages get basic indentation formatting and syntax highlighting.
Formatting Options
Tab Width
Choose between 2, 4, or 8 spaces for indentation. Use tabs or spaces based on your preference.
Print Width
Set maximum line length (80, 100, or 120 characters) for automatic line wrapping.
Quote Style
Use single or double quotes for strings in JavaScript, TypeScript, and CSS.
Semicolons
Add or remove semicolons at the end of statements in JavaScript and TypeScript.
Trailing Commas
Control trailing commas in arrays, objects, and function parameters.
Minify Mode
Compress your code by removing whitespace and comments to reduce file size.
Common Use Cases
- Code Review - Format code consistently before submitting pull requests
- Legacy Code - Clean up messy or inconsistently formatted codebases
- Quick Testing - Format snippets from Stack Overflow or AI tools
- Learning - See how properly formatted code should look
- Minification - Compress CSS and JavaScript for production
- JSON Formatting - Pretty-print API responses for debugging
Frequently Asked Questions
Which languages have full formatting support?
JavaScript, TypeScript, JSON, HTML, CSS, SCSS, Less, Markdown, YAML, and GraphQL use Prettier for professional formatting with all customization options.
Does the formatter detect the language automatically?
Yes! When you paste code, the tool automatically detects the language based on syntax patterns. You can also manually select a language from the dropdown.
What is the difference between beautify and minify?
Beautify adds proper indentation and line breaks for readability. Minify removes unnecessary whitespace and comments to reduce file size for production.
Is my code safe when using this tool?
Absolutely! All formatting happens locally in your browser using JavaScript. Your code is never sent to any server, ensuring complete privacy.
Why do some options not appear for certain languages?
Some options like semicolons and trailing commas only apply to JavaScript/TypeScript. Quote style applies to JS/TS and CSS. The tool shows only relevant options for each language.
Can I use this for production code?
Yes! This tool uses Prettier, the industry-standard code formatter used by major companies. The output is production-ready and matches what you'd get from running Prettier locally.