Convert WebM to MP3
Only the sound of the WebM is kept, as MP3. The picture is dropped.
They open in the converter with MP3 selected.
Browse filesFiles stay on your device.
What changes
Both formats are lossy. Converting decodes the file and compresses it again, so it loses a little more detail on top of what the original had already lost: the result is slightly worse than the file you started with.
The file gets smaller: MP3 stores the same content in less space.
Watch out for transparency: WebM has an alpha channel and MP3 doesn’t, so transparent areas are filled with the background color (white unless you pick another).
How big the MP3 will be
At 192 kbps, 4 min of MP3 take 5.8 MB.
When it’s worth it
Choose MP3 for: Music, podcasts, and everyday sharing. Small files that play on almost anything.
Stay with WebM for: Websites and browser playback.
How to convert WebM to MP3
- Drop the WebM files on this page, or browse for them. Up to 200 at once.
- The converter opens with the files loaded and MP3 selected.
- Press Convert, then save each file or all of them as a ZIP.
Questions
Does converting WebM to MP3 lose quality?
A little. Both formats are lossy, so the file is compressed again and loses a bit more detail.
What is the MP3 format?
A lossy codec where the audio is cut down by removing sounds the ear can’t hear, so a track keeps a reasonable size at a typical bitrate. It’s still the most widely playable audio format, which is why it’s the default for sharing music.
What is the WebM format?
The container Google designed for the web, carrying VP8 or VP9 video with Opus or Vorbis audio. It’s royalty-free, which is why open-source projects and most browsers prefer it.
Are the files uploaded?
No. The file is opened in this tab, converted here and saved from here. There’s no account and no watermark.
How many files can be converted at once?
Up to 200 per batch and about 2 GB per file, within the memory this device has available.