WebM to MP3 Converter
Save the audio from WebM recordings, screen captures and voice clips as MP3.
Convert your file
WEBM → MP3How it works
- Choose a WebM fileAudio or video WebM files up to 50 MB and 15 minutes long work.
- Pick the qualitySmall (128 kbps) for speech, Standard (192 kbps) for music.
- Agree, convert and downloadConfirm the upload, follow the progress, then save the MP3.
Supported formats
Files your browser cannot read are converted on our server instead.
About this tool
Many browser-based recorders, voice-memo sites and screen-capture tools save WebM files. They play in a browser but not in most music players, phones or editors. This converter takes the first audio track from your WebM, whether it is a sound-only recording or a video, and saves it as an MP3.
If the WebM contains video, the picture is dropped and only the sound is kept. Choose 128 kbps for speech or a higher bitrate for music. The conversion runs on our server with FFmpeg after you agree to the upload. Files up to 50 MB and 15 minutes are accepted and deleted within 30 minutes.
Questions people ask
Why did my recording save as WebM?
Does it work with WebM video?
What if the file has no sound?
Getting sound from WebM
Turn on audio when recording
When you share a screen or tab in Chrome, tick the option to share audio, otherwise the WebM has no sound to extract.
Large videos
WebM videos over 50 MB need trimming first. Audio-only WebM files are small and convert quickly.
Speech needs little
Most WebM audio is Opus, which sounds good at low bitrates. Small (128 kbps) MP3 is plenty for speech.
WebM vs MP3
| WebM | MP3 | |
|---|---|---|
| Full name | WebM container, usually with Opus or Vorbis audio | MPEG-1 Audio Layer III |
| Compression | Lossy | Lossy |
| Typical file size | Depends on the recording; video makes it much larger | About 1 MB per minute at 128 kbps, 2.4 MB at 320 kbps |
| Best for | Browser recordings, screen captures and web video | Music, podcasts and sharing |
| Works with | Web browsers; most music players, phones and editors cannot open it | Practically every phone, computer, car stereo and app |