WebM for Websites

Drag your video here

Or

Make WebM files purpose-built for websites: small hero loops, transparent overlays and product videos that load fast on every connection.

How to use the WebM for Websites

  1. Add your video 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 websites use WebM

VP9 WebM delivers the same visual quality as H.264 at a noticeably smaller size, and it is the only broadly supported web format with alpha transparency.

Combine it with an MP4 fallback and you get the smallest file for most visitors without leaving anyone out.

Frequently asked questions

Do all browsers support WebM?

Chrome, Edge, Firefox, Opera and modern Safari play WebM. Keep an MP4 fallback for older Apple devices.

Should a background video have sound?

No — browsers will only autoplay muted video. See Background Video Converter, which strips audio.

What quality is best for website WebM?

Around 60–70 balances size and detail for most clips.

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