Code Formatter

Code Formatter is a free online tool that beautify and format code in JavaScript, TypeScript, HTML, CSS, JSON, Python, and more. Instant clean output for developers. No account or software needed.

Input Code

Formatted Code

Formatted code will appear here

What is Code Formatter | Rune

Code Formatter instantly beautifies and formats your code with proper indentation, spacing, and structure. Supports JavaScript, TypeScript, HTML, CSS, JSON, Python, and more, paste messy code and get clean output in seconds.

Designed for software developers, DevOps engineers, and technical teams who need reliable developer utilities. Supports multiple formats and standards commonly used in modern software development and API integration. Useful for debugging, testing, and validating data structures in web applications and backend services. This tool runs entirely in your browser, requiring no software downloads or installations on your device.

20+
Languages
Instant
Formatting
100%
Client-Side
Custom
Options

The Advantage of Using Code Formatter on Rune

Speed and privacy sit at the core of Code Formatter. With multi-language support and customizable options, the tool delivers results in seconds while keeping your data entirely on your device. No cloud uploads, no server-side processing, no third-party tracking.

Code Formatter was built for people who need dependable results without jumping through hoops. Paste minified or messy code and get perfectly formatted output instantly. That kind of straightforward design is what sets this apart from the many other tools that promise the same thing.

Key Features of Code Formatter

A complete feature set designed for real code formatter workflows

Multi-Language Support

Format JavaScript, TypeScript, HTML, CSS, JSON, Python, SQL, XML, YAML, and many more languages.

Customizable Options

Configure indentation size, tab vs spaces, line width, and language-specific formatting rules.

Instant Beautify

Paste minified or messy code and get perfectly formatted output instantly.

Syntax Highlighting

Formatted code is displayed with full syntax highlighting for easy reading.

Quick Copy

Copy formatted code to clipboard with one click for use in your projects.

Privacy Safe

All formatting happens in your browser. Your code never leaves your device.

Key Advantages of Code Formatter

Browser-based processing

Every operation in Code Formatter runs locally on your device. Your data stays in your browser and is never sent to external servers.

Multi-Language Support

Format JavaScript, TypeScript, HTML, CSS, JSON, Python, SQL, XML, YAML, and many more languages. This feature is available for free with no usage limits on the standard tier.

Privacy by default

Code Formatter processes your data on your machine. Your files and text stay local. Nothing is stored after you close the tab.

Mobile and desktop ready

Code Formatter works on any screen size. The interface adapts to phones, tablets, and desktops so you can use it wherever you are.

No account needed

Use Code Formatter without creating an account or providing an email address. The free tier gives you full access to core features.

Free with no hidden costs

Code Formatter is completely free on the standard tier. There are no trial periods, no watermarks on output, and no surprise paywalls after you start using it.

Who Benefits from Code Formatter

Code Formatter fits into a wide range of workflows. Here is how different users put it to work.

Students and Academics
Use Code Formatter for assignments, research papers, and coursework. Format JavaScript, TypeScript, HTML, CSS, JSON, Python, SQL, XML, YAML, and many more languages.
Professionals and Teams
Integrate Code Formatter into your daily workflow for faster turnaround on routine tasks. Configure indentation size, tab vs spaces, line width, and language-specific formatting rules.
Content Creators and Freelancers
Speed up your creative process with Code Formatter. Paste minified or messy code and get perfectly formatted output instantly.
Developers and Technical Users
Add Code Formatter to your toolkit for quick utility tasks between coding sessions. Formatted code is displayed with full syntax highlighting for easy reading.

How to Use Code Formatter

No setup needed, just 3 steps to your result

01

Paste Your Code

Paste minified, messy, or unformatted code into the input area.

02

Select Language

Choose the programming language for proper formatting rules and syntax.

03

Copy Formatted Code

Copy the beautifully formatted code to your clipboard or download it.

Rune pro tipsPro Tips

  • Use 2-space indentation for JavaScript/TypeScript and 4-space for Python to follow community conventions.
  • Format JSON before debugging API responses to quickly spot structure issues.
  • Use the formatter to standardize code before submitting pull requests.
  • Minified code can be beautified to make it readable for debugging purposes.

Getting the Best Results with Code Formatter

Getting started with Code Formatter takes seconds. Paste minified, messy, or unformatted code into the input area. The interface loads quickly and puts the essential controls front and center so nothing slows you down.

Once your input is ready, select language. Choose the programming language for proper formatting rules and syntax. Results appear in real time, giving you immediate feedback before you commit to a final output.

Finally, copy formatted code. Copy the beautifully formatted code to your clipboard or download it. The entire process from start to finish typically takes under a minute for most inputs.

For the best experience, keep these points in mind: Use 2-space indentation for JavaScript/TypeScript and 4-space for Python to follow community conventions. Format JSON before debugging API responses to quickly spot structure issues. Small adjustments like these can make a noticeable difference in your output quality.

What You Can Do with Code Formatter

TASK 01

Multi-Language Support

Format JavaScript, TypeScript, HTML, CSS, JSON, Python, SQL, XML, YAML, and many more languages. Available for free with no file size restrictions on the standard tier.

TASK 02

Customizable Options

Configure indentation size, tab vs spaces, line width, and language-specific formatting rules. Available for free with no file size restrictions on the standard tier.

TASK 03

Instant Beautify

Paste minified or messy code and get perfectly formatted output instantly. Available for free with no file size restrictions on the standard tier.

TASK 04

Syntax Highlighting

Formatted code is displayed with full syntax highlighting for easy reading. Available for free with no file size restrictions on the standard tier.

Frequently Asked Questions

Quick answers for Code Formatter users

What languages are supported?

The formatter supports JavaScript, TypeScript, HTML, CSS, JSON, Python, SQL, XML, YAML, Markdown, Java, C#, PHP, and many more languages.

Is my code safe?

Absolutely. All formatting happens in your browser using client-side processing. Your code is never sent to any server.

Can I customize the formatting style?

Yes, you can configure indentation (tabs vs spaces), indent size, line width, and various language-specific options.

Does it work with minified code?

Yes! The formatter excels at beautifying minified code, adding proper indentation, line breaks, and spacing.

Can I format partial code snippets?

Yes, you can format complete files or partial code snippets. The formatter handles both gracefully.

Is there a code length limit?

No strict limit. The formatter handles large files efficiently in your browser, though very large files may take a moment to process.

Still need help?

Can't find what you're looking for? Our support team is here to assist you.

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