Convert WebM to MP3
Free and instant — your WebM files are processed securely on our servers and deleted right after conversion. Nothing is stored.
How to convert WebM to MP3
- Step 01
Add your WebM files
Drop them into the box above or click to browse. You can add several files at once.
- Step 02
Conversion starts instantly
Your file is sent to our servers, converted and deleted right away — no sign-up, no queue, no waiting.
- Step 03
Download your MP3 files
Save each file individually or grab them all at once. Done.
Why convert WebM to MP3?
WebM video from a screen recording or web download often only needs to be heard, not watched — converting to MP3 keeps just the audio as a small, universal file.
WebM vs MP3 at a glance
WebM is the open web video format — smaller than MP4 at the same quality, royalty-free and supported by every modern browser. MP3 is the universal audio format — plays on every device and app since the late 90s, smaller than WAV with near-identical quality.
| Property | WebM | MP3 |
|---|---|---|
| Extension | .webm | .mp3 |
| Full name | WebM Video | MPEG-1 Audio Layer III |
| First released | 2010 | 1993 |
| Developed by | Fraunhofer IIS | |
| Compression | Lossy | Lossy |
| Transparency | No | No |
| Animation | No | No |
| Best for | web video — open format supported natively by all browsers | music and podcast playback on any device |
WebM to MP3 — frequently asked questions
Is this WebM to MP3 converter really free?
Yes — completely free, with no sign-up, no watermarks and no daily limits.
Will I lose quality converting to MP3?
MP3 uses lossy compression, so the image is re-encoded at high quality (92%). For photos the difference is practically invisible; for text-heavy graphics or logos, a lossless format like PNG preserves sharp edges better.
Is the conversion private?
Video conversion runs on our servers with ffmpeg — your file is deleted immediately and never stored.