Code Minifier

Minify HTML, CSS, or JavaScript in one tool.

  • 100% free
  • Private in browser
  • No signup
  • No watermarks

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About Code Minifier

Need a quick size pass before a paste or a demo? Code Minifier on TheToolss strips comments and collapses safe whitespace across HTML, CSS, and JS in one place. It shows original and minified sizes so you can see what the pass actually saved. Handy for inlining a snippet into an email, trimming a CodePen, or shrinking a config before pasting it into a ticket. It is deliberately conservative and is not a replacement for a production bundler such as esbuild or Terser. Free, private, and no signup.

How to use Code Minifier

  1. Choose HTML, CSS, or JS mode.
  2. Paste your code.
  3. Minify and copy — see size savings.

Key features

  • HTML, CSS, and JS modes
  • Comment stripping
  • Whitespace collapse
  • Original vs minified size
  • Private browser tool

Frequently asked questions

Is Code Minifier free?
Yes. Use Code Minifier free on TheToolss — no signup required.
Is my data uploaded?
No. Processing runs locally in your browser whenever possible.
Can I use it on mobile?
Yes. Open the tool in a mobile browser.
Do I need an account?
No account is required.
Does it work privately?
Yes. Client tools keep your inputs on-device.
HTML CSS JS Minifier Online Free — Code Minifier | TheToolss