ToolsWise.com

Code Beautifier

JavaScript
2 Spaces

Input Code

Beautified Output

Free Code Beautifier

Format and beautify HTML, CSS, and JavaScript instantly in your browser. Turn minified or messy code into clean, readable output with the indentation style you prefer. No sign-up, nothing stored.

What is a code beautifier?

A code beautifier (also called a formatter or pretty-printer) takes source code and rewrites its whitespace — indentation, spacing, and line breaks — so it is consistent and easy to read. It is the opposite of a minifier: where a minifier strips formatting to shrink file size, a beautifier restores structure to make code understandable.

This tool supports JavaScript, CSS, and HTML, and lets you choose between 2 spaces, 4 spaces, or tabs for indentation. Formatting runs entirely on your device, so even sensitive code never leaves your browser.

Key Features

JavaScript Formatting

Turn minified or one-line scripts into clean, readable JavaScript with consistent indentation and spacing.

CSS Beautifier

Expand compressed stylesheets into tidy rules with each declaration on its own line.

HTML Formatter

Re-indent collapsed markup into a properly nested, easy-to-scan document structure.

Custom Indentation

Choose 2 spaces, 4 spaces, or tabs to match your team's style guide and editor settings.

Live Formatting

Output updates instantly as you type or paste — no Format button to press.

100% Client-Side

Your code is formatted entirely in the browser. Nothing is uploaded, logged, or stored.

How to Beautify Code

1

Pick your language

Select JavaScript, CSS, or HTML so the right formatter is applied to your code.

2

Paste your code

Drop minified or messy code into the input panel — the beautified result appears immediately beside it.

3

Set the indentation

Switch between 2 spaces, 4 spaces, or tabs to match the style your project uses.

4

Copy or download

Grab the formatted output with one click, or download it as a .js, .css, or .html file.

Common Use Cases

  • Reading minified code: Unpack production bundles or vendor scripts into a readable form so you can understand what they do.
  • Code reviews: Normalise formatting before a review so diffs focus on logic instead of whitespace noise.
  • Learning and debugging: Format unfamiliar snippets from the web to study their structure and spot issues faster.
  • Cleaning up generated output: Tidy markup or styles emitted by tools and templates that ship everything on a single line.
  • Consistent style: Apply uniform indentation across JavaScript, CSS, and HTML files for a tidy codebase.

Frequently Asked Questions

What does a code beautifier do?

A code beautifier reformats source code with consistent indentation, spacing, and line breaks so it is easier to read. It changes only formatting — the behavior of your code stays exactly the same.

Which languages are supported?

This tool formats JavaScript, CSS, and HTML. Select the matching language so the correct formatter is applied to your input.

Can I choose the indentation style?

Yes. You can format with 2 spaces, 4 spaces, or tabs. Pick whichever matches your editor configuration or your team's style guide.

Is my code sent to a server?

No. All formatting happens entirely in your browser using JavaScript. Your code is never uploaded, logged, or stored anywhere.

Will beautifying change how my code works?

No. Beautifying only adjusts whitespace and line breaks for readability. The logic, values, and structure of your code are preserved.

Can it format minified code?

Yes. Paste minified or single-line code and the beautifier will expand it into a properly indented, readable layout instantly.