Free · Instant · No Upload Needed

Code Formatter

Format, beautify and minify JavaScript, TypeScript, HTML, CSS, JSON and XML instantly. Live formatting, syntax highlighting, find and replace, diff view and file upload all in your browser.

Indent:
Input
✨
Formatted code will appear here
Start typing to format live

Supported Languages

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Free Online Code Formatter and Beautifier

The TOOLBeans Code Formatter is a free, browser-based tool that instantly beautifies and reformats JavaScript, TypeScript, HTML, CSS, SCSS, JSON and XML. You paste messy, minified or inconsistently indented code into the editor and the tool returns clean, properly indented output with consistent spacing and structure. Because everything runs locally in your browser using pure JavaScript, there is nothing to install, no account to create, and your code is never uploaded to any server.

Well-formatted code is not a cosmetic luxury. Consistent indentation and spacing make code dramatically easier to read, review and debug, and they reduce the chance of subtle mistakes such as a misplaced bracket or an unclosed tag. When several people work on the same codebase, a shared formatting style removes pointless arguments about whitespace and keeps version-control diffs focused on real changes rather than reformatting noise.

This formatter also works in the other direction. Switch to Minify mode and it strips comments and unnecessary whitespace to produce the smallest possible output, which is useful when you want to shrink a CSS or JavaScript file before deploying it. A built-in diff view shows you exactly which lines changed, a stats panel summarises the size difference, and find-and-replace lets you make quick edits before or after formatting all without leaving the page.

How to Format Code Online Step by Step

1
Paste or upload your code

Paste code straight into the input editor, or click Upload File to load a .js, .ts, .html, .css, .scss, .json or .xml file. Everything is read locally in your browser, so even large files stay private.

2
Let auto-detect pick the language

With Auto-detect on, the tool recognises the language from your code and selects it for you. You can always override it by clicking a language pill if the guess is not what you intended.

3
Choose Format or Minify

Format mode beautifies your code with clean indentation. Minify mode compresses it to the smallest size. In Format mode you can also choose 2-space or 4-space indentation.

4
Watch it format live

With Live mode on, the output updates as you type, debounced so it stays smooth. Turn Live off if you prefer to click the Format button manually for large files.

5
Review with diff and stats

Open the Diff tab to see exactly which lines changed between your input and the formatted output, and the Stats tab for line counts, character counts and the size change.

6
Copy, download or replace

Copy the result to your clipboard, download it with the correct file extension, or use Find and Replace to swap text throughout your code before copying.

Why Formatting Your Code Matters

👀
Readability

Consistent indentation and spacing let you scan structure at a glance, so you spend less time deciphering layout and more time understanding logic.

🐛
Fewer bugs

Clean formatting exposes mistakes that messy code hides, like a missing closing bracket, an unclosed HTML tag, or a block nested at the wrong level.

🤝
Easier collaboration

A shared, consistent style ends whitespace debates and keeps pull-request diffs focused on real logic changes rather than reformatting noise.

📉
Smaller production files

Minify mode removes comments and whitespace to shrink CSS and JavaScript, which means faster page loads for your users.

🔒
Total privacy

All processing happens in your browser. Your code never touches a server, so it is safe to format proprietary or client work.

⚡
Instant and offline

Formatting runs in milliseconds with no network round-trip, and continues to work even if your connection drops after the page loads.

Format vs Minify: What Is the Difference?

Both modes transform your code, but they serve opposite goals. Choosing the right one depends on whether a human or a machine is going to read the result.

✨ Format (Beautify)
Goal: Make code readable for humans
Does: Adds consistent indentation, spacing and line breaks
Use for: Reading, reviewing, debugging and editing code
⚡ Minify (Compress)
Goal: Make files small for machines
Does: Removes comments, whitespace and line breaks
Use for: Production deployment, faster page loads

Languages This Formatter Supports

🟨 JavaScript

Reformats functions, objects, arrays and control flow with consistent brace placement and indentation. Strings, template literals and comments are preserved exactly.

🔷 TypeScript

Handles everything JavaScript does, plus interfaces, type annotations, generics and enums, so typed code is reindented without losing its type information.

🟧 HTML

Indents nested elements, keeps inline elements on the same line where appropriate, and protects the contents of pre, script, style and textarea from being reflowed.

🔵 CSS

Puts each declaration on its own line, normalises spacing around colons and braces, and indents nested rules so stylesheets become easy to scan.

🌸 SCSS / LESS

Formats nested selectors, variables and the & parent reference common in Sass-style stylesheets, keeping preprocessor syntax intact.

🟩 JSON

Parses and re-serialises JSON with your chosen indentation, and reports a clear error with the position if the JSON is invalid, so it doubles as a validator.

📋 XML

Indents elements by nesting depth and keeps declarations and self-closing tags correct, which is handy for config files, RSS feeds and SVG markup.

Frequently Asked Questions

Is the code formatter free to use?+
Yes. It is completely free with no usage limits, no account and no signup. Every feature, including all languages, minify mode, diff view, find and replace, file upload and download, is available to everyone.
Does my code get uploaded to a server?+
No. All formatting runs entirely in your browser using pure JavaScript. Your code never leaves your device and is never uploaded anywhere, so it is safe to format private or proprietary code.
Which languages does the formatter support?+
JavaScript, TypeScript, HTML, CSS, SCSS or LESS, JSON and XML. Auto-detection identifies the language from your code automatically, and you can override it manually with the language pills at any time.
What is the difference between Format and Minify?+
Format mode beautifies code with consistent indentation and spacing to make it readable. Minify mode removes whitespace and comments to make the file as small as possible for production. Use Format for editing and review, Minify for deployment.
Can I upload a file instead of pasting code?+
Yes. Click Upload File and choose a .js, .ts, .html, .css, .scss, .less, .json or .xml file. It is read and formatted locally in your browser with nothing uploaded to a server.
What does the diff view show?+
The Diff tab compares your original input against the formatted output line by line and highlights exactly what changed, with removed or original lines in red and added or formatted lines in green, so you can review every formatting decision.
Can I find and replace text in my code?+
Yes. Open the Find and Replace panel from the toolbar, type the text to find (the tool shows how many matches exist), enter the replacement, and replace a single occurrence or all of them at once. The output reformats automatically in Live mode.
Does live formatting slow down with large files?+
Live mode is debounced, so it waits until you pause typing before formatting, which keeps it responsive. For very large files you can turn Live off and format manually with the Format button for full control.
Is this a replacement for Prettier?+
For quick, in-browser formatting it covers the most common needs without any setup. For a strict, configurable standard enforced across a whole team and integrated into your editor and build, a dedicated tool like Prettier is still the better fit. This tool is ideal for fast one-off formatting and learning.
Does formatting change what my code does?+
No. Formatting only changes whitespace, indentation and layout, never the logic. Minify additionally removes comments, which do not affect behaviour. Your code runs exactly the same before and after.