Code Minifier & Beautifier
Minify or beautify HTML, CSS and JavaScript safely — comments and whitespace removed, strings left untouched.
About Code Minifier & Beautifier
This code minifier makes HTML, CSS and JavaScript files smaller by removing comments and extra whitespace, while leaving strings and important licence comments alone. Choose the language, paste your code and click Minify, then see how many bytes you saved.
Click Beautify instead to turn minified or messy code back into readable, indented code. It is useful for web developers speeding up page loads, bloggers adding snippets to a theme and students reading compressed code. Copy or download the result. The tool is free, needs no sign-up and runs in your browser.
How to use Code Minifier & Beautifier
- Choose HTML, CSS or JavaScript.
- Paste your code.
- Click Minify for smaller files or Beautify to make it readable.
- Check the size savings and copy or download the result.
Frequently asked questions
Is the JavaScript minifier safe?
It is deliberately conservative: it removes comments and extra whitespace outside strings, template literals and regular expressions, and keeps line breaks where they might matter. It does not rename variables. Always test before deploying.
Why not rename variables too?
Renaming needs a full parser (like Terser) to be safe. For production builds, use a bundler; this tool is for quick, safe size cuts.
Are licence comments kept?
Yes — JavaScript comments starting with /*! are preserved.
How do I minify CSS online?
Choose CSS, paste your stylesheet and click Minify. Copy the smaller result or download it as a file.
What is the difference between minify and beautify?
Minify removes spaces and comments to make files smaller. Beautify adds line breaks and indentation to make code easy to read.
Does minifying JavaScript change how it works?
No. It removes comments and extra spacing only; variable names and strings are kept as they are.
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