MediaTofu

Free toolsWebM to MP4

WebM to MP4 converter

Choose a WebM video and download an H.264 MP4.

Do this in your app with one API call

POST /v1/tools/video/convert?wait=25
curl "https://api.mediatofu.com/v1/tools/video/convert?wait=25" \
  -H "Authorization: Bearer $MEDIATOFU_KEY" \
  -d '{ "input": "https://example.com/clip.webm", "format": "mp4" }'

The result is H.264 video and AAC audio. input is a public URL or a file id.

Get a free API key

Questions

Is it free?

Yes. There is no account, watermark or daily limit.

Do you store my files?

No. We don't store your files on our servers or keep a copy of anything you make. These tools are built privacy first.

Does converting WebM to MP4 lose quality?

WebM uses different codecs from MP4, so the video has to be re-encoded. At normal settings the difference is hard to see.

Why is there a 500 MB limit?

Re-encoding a video is heavy work, and the finished file has to fit in memory. For larger files or automated work, use the MediaTofu API.

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