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Code Beautifier

Pro Features
TypeScript supportCustom prettier config

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About Code Beautifier

Code Beautifier formats and indents source code across multiple languages to make it clean, consistent, and easy to read. It applies standard style conventions for indentation, spacing, and line breaks, turning compressed or poorly formatted code into a professional layout. This tool saves developers significant time during code reviews, debugging, and refactoring sessions.

Key Features

  • Supports beautification of JavaScript, TypeScript, HTML, CSS, JSON, and XML
  • Configurable indentation style with options for spaces or tabs and adjustable width
  • Preserves code semantics while improving visual structure and readability
  • Handles deeply nested code blocks and long chained method calls gracefully
  • Applies consistent brace style, line breaks, and spacing rules across your code
  • One-click copy of the beautified output ready for your editor or repository

How to Use Code Beautifier

  1. 1

    Select your language

    Choose the programming language of your code from the dropdown so the beautifier applies the correct formatting rules.

  2. 2

    Paste your code

    Copy the unformatted or minified code into the input area. The tool handles everything from single functions to full files.

  3. 3

    Configure formatting options

    Adjust settings like indent size, brace placement, and max line length to match your team's coding standards.

  4. 4

    Click Beautify

    Press the Beautify button to instantly reformat your code with clean indentation, consistent spacing, and proper line breaks.

  5. 5

    Copy and use the result

    Copy the formatted code back into your editor, or use it directly in code reviews and documentation.

Common Use Cases

Reading Minified Code

Expand minified JavaScript or CSS files back into readable format when you need to debug production code or understand a third-party library.

Standardizing Code Style

Quickly reformat code snippets from different contributors or Stack Overflow answers to match your project's style guide before pasting them in.

Preparing Code for Documentation

Beautify code examples before including them in blog posts, tutorials, or API documentation to ensure they look professional and are easy to follow.

Legacy Code Cleanup

Reformat messy legacy codebases as a first step in refactoring, making the existing logic easier to understand before making structural changes.

Why Use Our Code Beautifier

Support for JavaScript, TypeScript, HTML, CSS, JSON, and XML in a single tool means you do not need to switch between language-specific formatters. Configurable indent style and brace placement let you match any team's coding standards instantly. It runs in the browser with no sign-up, making it the fastest way to clean up code from Stack Overflow, minified bundles, or legacy projects.

Your Source Code Stays on Your Machine

Developers often paste proprietary business logic, internal algorithms, or client code that must remain confidential. The Code Beautifier processes everything locally in your browser with zero server communication. Your intellectual property and source code are never uploaded, logged, or stored anywhere.

Frequently Asked Questions

Will beautifying my code change how it runs?
No. The beautifier only modifies whitespace, indentation, and line breaks. It does not change variable names, logic, or any functional aspect of your code. The output is semantically identical to the input.
Which coding style does the beautifier use?
The default style follows widely accepted conventions for each language (such as standard JavaScript style or PEP-8-inspired indentation). You can customize indent size and brace placement to match your preferred style.
Can I beautify an entire file at once?
Yes. The tool can handle full source files, not just snippets. For very large files (thousands of lines), processing happens in your browser so performance depends on your device, but most files format in under a second.

Last updated: April 6, 2026