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Guide
About the Code Beautifier & Minifier
This tool does two opposite jobs. Beautifytakes minified or messy HTML, CSS, or JavaScript and lays it out with proper indentation and line breaks so it's readable and easy to work with. Minify does the reverse — it strips comments and unnecessary whitespace to make files smaller and faster to load.
Pick a language, choose a mode, and copy the result. Everything runs in your browser, so your code isn't uploaded anywhere.
When to beautify
Reach for beautify when you've pasted minified code from production, inherited a poorly formatted file, or just want consistent indentation before committing. A clean layout makes code easier to read, review, and debug — and consistent formatting reduces noise in version-control diffs.
When to minify
Minify when you want to reduce file size for faster page loads — smaller CSS and JavaScript mean less to download. Removing comments and whitespace can noticeably shrink a file. For CSS and HTML this is usually all you need; for JavaScript, a build tool that also renames variables will compress further, but comment and whitespace removal is a safe, quick win.
How to use it
- 1Choose the language: HTML, CSS, or JS.
- 2Select Beautify to format, or Minify to compress.
- 3Paste your code into the input.
- 4Copy the formatted or minified result.
Frequently asked questions
What is the difference between beautify and minify?
Beautify adds indentation and line breaks to make code readable. Minify removes comments and whitespace to make files smaller. They are opposites, and this tool does both.
Will minifying break my code?
The minifier is conservative — it preserves strings, template literals, and (for HTML) content in pre, script, and style tags, and keeps line breaks in JS so automatic semicolon insertion still works. It is safe for typical code.
Does it fully compress JavaScript like a build tool?
It removes comments and whitespace safely, but it does not rename variables. For maximum production compression, run your code through esbuild or terser as well.
Can it format code copied from production?
Yes. Beautify is ideal for turning minified HTML, CSS, or JS back into a readable, indented form.
Is my code uploaded?
No. Beautifying and minifying happen entirely in your browser, so your code never leaves your device.