Frameloom

Convert MP4 to WebM

WebM is the open video format used across the web. Frameloom converts your MP4 to WebM with VP8 video and Vorbis audio, which every browser that plays WebM supports.

Free to try: a 1-minute 1080p video costs 5 tokens, and you get 30 every week.

WEBM · 16.8 MB · re-encoded to VP8 + Vorbis · real result on a sample clip

How to do it

  1. Open Convert format and drop your file in, or pick it from your device. It stays on your device.
  2. Check the settings. WebM is preselected. Choose Standard or High quality.
  3. Press Run, then preview and download the result.

Quality and size

The video is encoded with a quality target, and the bitrate is capped below the original's, so converting never makes the file bigger.

If your source is already WebM-compatible (VP8, VP9 or AV1 with Opus or Vorbis), the streams are copied instead, and the conversion is lossless and instant.

PrivateYour file is processed in your browser and never uploaded.
No installWorks in Chrome, Edge, Firefox and Safari on any computer.
Smart settingsSettings are chosen for your specific file, not one-size-fits-all.
Free weekly30 tokens every week with a Google account. No card needed.

Questions

Why VP8 and not VP9?
VP8 is fast enough to run in a browser and plays everywhere WebM does. For the smallest files with wide support, MP4 (H.264) is usually the better choice anyway.
Can I convert WebM back to MP4?
Yes. Drop the WebM in and choose MP4.
Is anything uploaded?
No. Conversion runs on your device.

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