Code Beautifier & Minifier
Beautify (readable, indented) or minify (smallest size) HTML, CSS, or JavaScript.
A note on JavaScript
Minifying JavaScript safely requires a real parser to avoid breaking code that relies on automatic semicolon insertion or regex literals. This tool does a conservative pass — stripping comments and collapsing whitespace — rather than full identifier renaming, so the output stays correct but isn't as small as a dedicated bundler's minifier.
About the Code Beautifier & Minifier
This tool formats messy HTML, CSS or JavaScript into readable, indented code, or minifies it by removing whitespace and comments to reduce file size. Beautifying helps you read code from minified sources and review it; minifying helps pages load faster.
The beautifier applies consistent indentation and line breaks. The minifier removes characters that are not needed to run the code, which shortens files and reduces download time. Aggressive minifiers also rename variables, but this tool focuses on safe whitespace and comment removal, so the code behaves the same. Always test minified output before deploying.
How to use it
- Select HTML, CSS or JavaScript.
- Paste your code.
- Choose Beautify or Minify.
- Copy the output into your project.
Tips and good to know
- Keep the original source file; minified code is hard to maintain.
- Comments that contain licence text may need to be retained.
- Run your tests after minifying.
Frequently asked questions
Will minifying change how my code works?
Safe whitespace minification should not, but always test.
Is my code uploaded?
No, it is processed in your browser.
Can it fix syntax errors?
No, it formats code but does not repair it.