Create WebM videos for the modern web

Uses WebM / VP8 by default. Choose an MP4 source, check dimensions and bitrate, then export. You can include source audio; audio is off by default.

How to use

1. Drop a video or click to choose a file.
2. Review the output settings and export.
3. Download when ready. Refreshing or closing the page clears the files.

Output details

This browser beta uses VP8; VP9 and AV1 are unavailable. Converting an ordinary MP4 does not remove its background. Transparency requires an input that already has an alpha channel.

150 MB per file, up to 3 videos, 3 successful exports daily. The first run downloads the processing engine. Speed depends on your device. Desktop Chrome is recommended.