Convert WEBM to M4A

Upload your files and download them converted in seconds.

How to convert WEBM to M4A

This tool converts WEBM files to M4A right in your browser. There's nothing to install and no account to create: upload the file, pick M4A and download it.

  1. Upload your WEBM file: drag it onto the upload area or click “Choose files”.

  2. Check that the target format is M4A and click “Convert”.

  3. Download your M4A file as soon as it's ready.

What changes when you convert WEBM to M4A

  • Only the sound is kept: the M4A has no picture.
Comparison of WEBM and M4A
FeatureWEBMM4A
Moving pictureYesNo
SoundYesYes

About the formats

WEBM

WEBM is an open video format designed for the web. Browsers play it without plugins and it's small for its quality.

M4A

M4A is Apple's audio format (AAC). It sounds better than an MP3 of the same size and is what iPhone voice memos use.

Frequently asked questions

Is it free to convert WEBM to M4A?

Yes. Conversion is free, you don't need an account and the result has no watermark. You can upload files of up to 50 MB.

Do I lose quality converting WEBM to M4A?

Length and, for video, resolution are kept. If the M4A uses lossy compression, a high quality setting is used so the difference is barely noticeable.

Is it safe to upload my files?

Your files are only used for the conversion and are deleted automatically after 60 minutes. They're never shared with anyone.

Can I convert several WEBM files at once?

Yes. You can upload up to 20 files at once and convert them all with “Convert all”.

Does it work on mobile, Mac and Windows?

Yes. It works in any modern browser, on desktop and mobile, with nothing to install.