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CSS Minifier

Remove comments and unnecessary CSS whitespace while preserving quoted values.

Loading local tool…
No uploadsYour files stay on this device.
Local engineYour browser does the work.
Auto cleanupTemporary memory is released.
About this tool

Use css minifier without uploading files

Remove comments and unnecessary CSS whitespace while preserving quoted values. CSS Minifier runs in the current browser session, giving you a direct result without sending the source to a Filemazing processing server.

Processing takes place in your browser tab. Temporary working data is released when you leave or reload the page.

Three steps
  1. Paste or choose the source accepted by CSS Minifier.
  2. Select formatting or cleanup options without changing meaningful data unintentionally.
  3. Process the input, inspect the preview, and copy or download the result.
Useful for

Common minify css tasks

  • Using minify css without an upload queue
  • Reviewing configuration and source text
  • Creating development-ready output
Practical details

What to know before you start

Accepted input

Supported text entered directly or selected from a local file

Created output

A processed minify css result

Tips and limitations
  • Generated or reformatted output still needs review in its target application.
  • Do not treat syntax validation as proof that a configuration is secure or semantically correct.
  • Review the CSS Minifier result before using it in an important workflow.