About

Code Beautifier & Minifier

Format and beautify JavaScript, HTML, CSS, JSON, and SQL code with customizable indentation

Input0 chars
Output

Enter code and click Beautify to format

About This Tool

Code Beautifier is a free online tool that instantly formats and indents your messy or minified code into clean, readable output. Supporting multiple programming languages including JavaScript, JSON, HTML, CSS, and SQL, it automatically detects the language and applies proper indentation, spacing, and line breaks. Well-formatted code is essential for effective team collaboration, as it ensures every developer can quickly understand and contribute to the codebase. During code reviews, properly formatted code reduces cognitive load and allows reviewers to focus on logic rather than formatting inconsistencies. Whether you are debugging minified code from a production build, preparing code for a pull request, or cleaning up generated output, this tool saves you time and ensures consistency across your projects without requiring any software installation.

How to Use

  1. Paste your code into the input area on the left side of the screen.
  2. Select the programming language from the dropdown menu (JavaScript, HTML, CSS, JSON, or SQL).
  3. Choose your preferred indentation style — 2 spaces, 4 spaces, or tabs.
  4. Click "Beautify" to format your code, or "Minify" to compress it.
  5. Use Copy to copy the result, or Clear to reset both input and output areas.

Frequently Asked Questions

The beautifier focuses on formatting and indentation. For JSON, it does validate the structure since it uses the native JSON parser. For other languages, it applies rule-based formatting but does not perform full syntax validation. Use a linter for comprehensive code validation.
Beautify adds proper indentation, line breaks, and spacing to make code human-readable. Minify does the opposite — it removes all unnecessary whitespace, comments, and line breaks to produce the smallest possible file size for faster page loading.
The tool runs entirely in your browser, so performance depends on your device. Files up to a few hundred KB should process instantly. Very large files (several MB) may take a moment but will still work without any server-side processing.
The code beautifier supports popular languages including JavaScript, JSON, HTML, CSS, XML, SQL, and TypeScript. It automatically detects the language based on your input and applies the appropriate formatting rules. Each language has its own indentation and spacing conventions that the tool follows to produce clean, readable code.
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