WebM to MP3
Save the sound from a WebM video as an MP3. Processing stays on your device.
Drop files to convert
See their format, then choose an output.
Any media file this browser’s engine can read. You can also drag in a folder. Several at once needs a free account.
How to convert WebM to MP3 online
Open a WebM, such as a browser screen recording or a downloaded clip, and export its audio as an MP3. The WebM to MP3 converter decodes the Opus or Vorbis audio and encodes MP3 in your browser, without uploading the file.
Step 1
Choose your WebMPick a file or drop it into the converter above.Step 2
Keep MP3MP3 is selected; choose another audio format if you need one.Step 3
Download the MP3Save the sound when the conversion finishes.
What to expect
- Supported inputs
- WebM videos and audio-only WebM files, and other readable video or audio files.
- What happens
- The video track is dropped and the audio is encoded as MP3. MP3 is selected first; you can choose another audio format.
- Limits
- The WebM needs an audio track. Encoding time depends on the file's length and your device.
Private by design
Your video stays on your device
Mastershot processes your file locally in this browser. It does not need to be uploaded to a server, and you do not need an account to use the tool.
- No upload
- No signup
- No watermark
Questions
Yes. WebM files that hold only sound convert the same way.
Many phones, car stereos, and music apps don't play WebM. MP3 plays almost everywhere.