Convert WebM to M4A
Free, fast WebM-to-M4A conversion.
Video and audio are processed with ffmpeg in your browser — large files are slow and use a lot of memory. Keep files under a few hundred MB for best results.
About the WebM and M4A formats
WebM. WebM is an open, royalty-free video format optimised for the web.
M4A. M4A is an AAC-based audio container common in Apple's ecosystem.
Frequently asked questions
How do I convert WebM to M4A?
Drop your WebM files into the box above and click Convert. The M4A file is generated instantly and ready to download.
Will the quality stay the same?
M4A keeps full quality, so your converted file looks identical to the original.
Is WebM to M4A conversion free?
Completely free, with no sign-up, watermarks or file-size paywalls.