WebM to MP3 converter
Pull the audio track out of a WebM file and save it as a 192 kbps MP3 that plays on any device or media player.
Drop a WebM file here, or choose one
Converted on your device · nothing is uploaded · no size limit
- No upload — files stay on your device
- No signup and no watermark
- No file size limit
WebM files carry their audio as Opus or Vorbis. Both are technically excellent and both are awkward outside a browser: car stereos, older phones, DJ software, podcast tools and most portable players simply do not read them.
This extracts that audio track and re-encodes it as MP3, the format that every piece of audio hardware made in the past twenty-five years understands. The video is discarded entirely, which is why this conversion is fast even for long files.
How to convert WebM to MP3
- Choose your file. Drag a WebM file onto the strip above, or click it to browse. The first file also loads the converter itself, which takes a few seconds.
- Wait for the bar to fill. Encoding runs on your own processor. A one-minute 1080p clip usually takes under a minute; keep the tab open while it works.
- Download the MP3. The finished file appears as a download button and saves straight to your device.
Why convert WebM to MP3
Lecture and meeting recordings
Recordings that arrive as WebM become listenable at double speed on a phone, in a car, or in a transcription tool once they are MP3.
Audio for editing
Podcast editors and DAWs accept MP3 without complaint. Many will not open a WebM container at all.
Much smaller files
Dropping the video track typically reduces file size by 90 percent or more, which makes the result easy to email or archive.
Nothing else changes
The audio is not trimmed, normalised or altered beyond the codec change. What you hear in the WebM is what you get in the MP3.
Common bitrates and what they suit
| Bitrate | Best for | Notes |
|---|---|---|
| 128 kbps | Speech, podcasts | Smallest useful files |
| 192 kbps | General purpose (used here) | Transparent for most listeners |
| 256 kbps | Music you care about | Larger, marginal gain |
| 320 kbps | Archival music | Maximum MP3 quality |
Doing it yourself with ffmpeg
If you convert files regularly, or need to process a whole folder, run it locally instead. This is the same operation the tool above performs:
ffmpeg -i input.webm -vn -c:a libmp3lame -b:a 192k output.mp3Every flag is explained in the guide to the ffmpeg command.
Questions
Does this improve the audio quality?
No conversion can add back detail that was never in the source. Opus at a low bitrate re-encoded to a high-bitrate MP3 stays exactly as good as the original was — the file just becomes bigger and more compatible.
What bitrate does it use?
192 kbps constant bitrate, which is transparent for speech and close to it for music. Adjust the -b:a value in the command below if you need something different.
Will it work on an audio-only WebM?
Yes. Audio-only WebM files, sometimes with a .weba extension, are handled the same way and convert almost instantly.
Can I get WAV instead?
The command below produces WAV if you replace the codec section with -c:a pcm_s16le and change the output extension. WAV is uncompressed, so expect roughly ten times the file size.
Is the file uploaded anywhere?
No. Extraction happens in your browser and the MP3 is written straight to your downloads folder.
Why is this so much faster than video conversion?
Because the video stream is thrown away rather than re-encoded. Audio encoding is a fraction of the work.