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HTML, CSS & JS Minifier

Strip whitespace and comments to shrink HTML, CSS and JavaScript for production.

To minify code, paste it and choose the language. Comments and unnecessary whitespace are removed and the size saving is reported. This is a safe textual minifier — it never renames variables, so the output stays debuggable.

Runs in your browser
Approach
Whitespace and comments only — no variable renaming
Privacy
Runs entirely in your browser — nothing is uploaded
Cost
Free, unlimited, no sign-up

Frequently asked questions

Is this as good as a build-tool minifier?

No, and deliberately so. esbuild and Terser also rename variables, drop dead code and rewrite expressions, which needs a full parse. This tool is for quick one-off snippets where you want the output to remain readable and safe.

How to use the html, css & js minifier

  1. 1Enter or paste your code.
  2. 2Choose the language.
  3. 3Turn "Also shorten values" on or off as needed.
  4. 4The result appears immediately — copy or download it.

Embed this tool

Put the working html, css & js minifier on your own site. It runs in your visitors' browsers exactly as it does here — free, no account, nothing uploaded.

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