Developer Tool

Code beautifier & minifier

Format or compress HTML, CSS, JavaScript, JSON, and XML in your browser. Beautify is safest; minify carefully and always test.

Beautify mainly changes whitespace. Minify can break fragile HTML/JS in rare cases — preview before production. Processing stays in your browser; do not paste secrets.

Input

Choose a language and action, then run.

Output

Need CSS/JS with server-side compressors? CSS & JS minify tool · JSON + schema

Code beautifier and minifier

Beautify makes code readable with consistent indentation. Minify shrinks files by removing unnecessary whitespace and comments—useful before embedding snippets, checking size savings, or cleaning messy exports. This tool supports HTML, CSS, JavaScript, JSON, and XML and runs locally in your browser.

When to beautify

  • Review vendor snippets you received as a single line
  • Prep HTML/CSS for debugging layout issues
  • Pretty-print JSON before editing configs or API payloads

When to minify

  • Estimate how much space a stylesheet or HTML fragment can save
  • Prepare compact samples for demos or CMS fields with size limits
  • Quickly strip comments from non-critical assets (always re-test)

Safety notes

Browser formatters are practical, not a full production build pipeline. Complex JavaScript (regex literals, template strings, ASI edge cases) may need a dedicated bundler. For heavier CSS/JS compression on the server, use our CSS & JS minify tool. For schema-aware JSON, use JSON Beautify & Schema.

Frequently asked questions

Is my code uploaded?

No. Transformation happens in your browser with JavaScript.

Will minify break my site?

It can in rare cases. Treat minify output as a draft and verify on staging—especially for JavaScript and HTML with significant whitespace (e.g. <pre>).

How is this different from the CSS & JS tool?

This page is a multi-language browser utility including HTML/JSON/XML. The CSS & JS tool uses server-side compressors tuned for those two languages.