DexartTools
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CSS Container Query Coverage Checker

Find components that may depend on viewport width instead of available container space.

How to use

  1. 1Open the CSS Container Query Coverage Checker tool page.
  2. 2Enter or paste your input into the provided fields.
  3. 3The tool processes your input instantly in your browser.
  4. 4Copy or download the result using the buttons provided.

Privacy & limitations

  • Processing happens locally in your browser — nothing is uploaded.
  • Works on modern desktop and mobile browsers.
  • Very large inputs may take a moment; the interface will show progress.

Support

Found a bug or want an improvement? We read every report.

Report a problem

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