WebM
An open web video format that uses VP8, VP9 or AV1 video with Opus or Vorbis audio.
- Type
- video
- Best for
- video on websites
No account · no upload · no watermark
Convert WEBM to M4A. Completely free.
Drop your WEBM and get an M4A back, right here in this tab. Your own computer does the work, so nothing gets uploaded, and there's no paid version.
WEBM to M4A converter
MPEG-4 Audio
An MPEG-4 audio file, usually AAC, as used by Apple devices.
- Type
- audio
- Best for
- Apple devices and good sound at small sizes
What to expect
Only the soundtrack is kept, so the picture is dropped and the M4A is far smaller than the WEBM.
How to convert WEBM to M4A
- Drop your WEBM on this page, or choose it from your device.
- M4A is already selected. Adjust quality, size or trim if you want to, and each option shows the size it will produce.
- Press Convert, watch it work, then download the result.
Questions
Is this WEBM to M4A converter really free?
Yes, completely. Every tool and every format is free, and there's no paid version, account, watermark or daily limit.
Do my files get uploaded?
No. Your browser does the work on your own device, so your files stay with you. Closing the tab clears them from memory.
Can I convert several files at once?
Yes. Drop as many as you like, and the results can be downloaded together as a ZIP.
Does it work on a phone?
Yes, in a current mobile browser. Large files are limited by how much memory your device can spare.
What should I know about WEBM to M4A?
Only the soundtrack is kept, so the picture is dropped and the M4A is far smaller than the WEBM.
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Ready to convert your WEBM?
- Completely free
- Nothing uploaded
- No account
- No watermark