tools.studio

WEBM to MP3

Lifts the audio out of a WEBM video and saves it as a plain MP3.

Drop a WEBM file here

Everything happens on your device — your files are never uploaded.

How it works

  1. 1 Drop your WEBM video or pick it from your device.
  2. 2 Click Convert to MP3 and watch the progress bar as it pulls out the audio.
  3. 3 Download your MP3. It never leaves your browser.

Built with open source

  • Mediabunny — Converts and edits video and audio in the browser via WebCodecs. Add-on encoders cover MP3, AAC, and FLAC. · MPL-2.0

Frequently asked

Does my WEBM get uploaded to a server? +

No. The audio is extracted and encoded in your browser with WebCodecs and an in-browser MP3 encoder. Nothing leaves your device.

What happens to the video? +

The video track gets dropped. Only the audio is decoded from the WEBM and re-encoded as a standalone MP3 file.

Why does it take a few seconds? +

MP3 has no native browser encoder. The WEBM's Opus or Vorbis audio gets decoded and re-encoded with a LAME-based encoder. Longer clips take a little longer.