Code Formatter
Format and beautify JavaScript, Python, TypeScript, HTML, CSS & 19+ languages instantly with professional syntax highlighting and custom styling rules
Input Code
Formatted Code
About Code Formatter
A Code Formatter is an essential development tool that automatically formats your source code according to consistent style rules. It transforms messy, inconsistent, or minified code into clean, readable, and maintainable code that follows industry-standard conventions.
Our formatter supports 19+ programming languages including JavaScript, TypeScript, Python, Java, C++, HTML, CSS, JSON, and more. Powered by Prettier, it ensures your code follows widely-accepted formatting conventions with customizable options for indentation, quotes, semicolons, and line width.
All processing happens 100% client-side in your browser - your code never leaves your device, ensuring complete privacy and security. Features real-time syntax highlighting and supports beautifying minified code. No signup required, completely free to use.
Key Features of Code Formatter
Everything you need for professional code formatter
19+ Languages
Format JavaScript, TypeScript, Python, Java, C++, HTML, CSS, JSON, Go, Rust, and many more programming languages with language-specific rules.
Syntax Highlighting
Beautiful syntax highlighting for all supported languages makes your code easier to read and understand at a glance.
Custom Options
Configure indentation, quotes, semicolons, line width, and more to match your team's coding standards perfectly.
Instant Formatting
Lightning-fast formatting with real-time processing. Format thousands of lines of code in milliseconds.
Minified Code Support
Transform minified or compressed code into beautiful, readable format with proper indentation and spacing.
100% Private
All formatting happens in your browser. Your code never leaves your device, ensuring complete privacy and security.
How to Use Code Formatter
Follow these simple steps to get started
Paste or Upload Code
Paste your code into the input area or upload a code file. Supported formats include .js, .ts, .py, .java, .cpp, .html, .css, .json and more.
Select Language & Options
Choose the programming language from the dropdown. The tool auto-detects from file extension. Customize formatting options as needed.
Format & Download
Click Format Code to beautify your code instantly. Copy to clipboard or download the formatted code with the correct file extension.
Pro Tips
- Use file upload to auto-detect the programming language from the file extension
- For JavaScript/TypeScript, enable the Options panel to customize Prettier settings
- Minified code? No problem - the formatter will expand and beautify it automatically
- Use keyboard shortcut: Press Enter while in the input to quickly format
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Frequently Asked Questions
Everything you need to know about Code Formatter
A Code Formatter is a tool that automatically formats your source code according to predefined style rules. It helps maintain consistent code style, improves readability, and saves time by eliminating manual formatting. Our formatter supports multiple languages and can handle various formatting preferences.
We support 19+ programming languages including JavaScript, TypeScript, Python, Java, C++, C#, HTML, CSS, JSON, Go, Rust, PHP, Ruby, Swift, Kotlin, SQL, Bash, Markdown, and YAML. Each language is formatted according to its best practices and community standards.
You can customize: indent size (2-8 spaces), tabs vs spaces, line width (40-120 characters), semicolon usage, quote style (single vs double), trailing commas, bracket spacing, and arrow function parentheses. These options apply primarily to JavaScript/TypeScript and similar languages.
Yes! Our formatter excels at beautifying minified or compressed code. Simply paste your minified JavaScript, CSS, HTML, or JSON, and the formatter will expand it with proper indentation, line breaks, and spacing for improved readability.
Absolutely! All formatting happens entirely in your browser using client-side JavaScript. Your code never leaves your device or gets sent to any server. This ensures complete privacy and security for sensitive or proprietary code.
No, the formatter doesn't fix syntax errors. It only reformats valid code. If your code has syntax errors, the formatter will show an error message. You'll need to fix the syntax errors before formatting.
Yes! The Code Formatter is completely free with no usage limits, sign-ups, or hidden fees. You can format as much code as you want, whenever you want, without any restrictions.
While this is a web-based tool, you can bookmark it for quick access. For IDE integration, we recommend using Prettier or similar extensions. Our tool is perfect for quick formatting when you're working outside your regular development environment.
Still need help?
Can't find what you're looking for? Our support team is here to assist you.
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