Compress WebM

Drag your WebM files here

Or

Make WebM files lighter for faster websites. Rewwwrap re-encodes with VP9 at a size-focused quality — and keeps transparency when your WebM has an alpha channel.

How to compress WebM

  1. Add your WebM filesDrag them onto the drop zone above, or click to browse. Add as many as you like — they stay on your computer.
  2. Tune the settingsSet quality, frame rate and scale. Leave Transparency on to keep any alpha channel.
  3. Convert and downloadClick Convert. Each finished WebM file gets its own download button, or grab everything with Download all.

Why compress WebM?

WebM exported from editors and screen recorders is often encoded at much higher bitrates than a web page needs. Re-encoding at a sensible quality can shrink it dramatically.

Smaller video means faster Largest Contentful Paint and less data for mobile visitors.

Frequently asked questions

Does compressing WebM keep transparency?

Yes. Transparent WebM stays transparent when Transparency is on.

What quality should I use?

50–65 for background and decorative video, 70–80 for detailed product footage.

Can I compress several WebMs at once?

Yes, drop them all in and download a ZIP.

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