WebM → M4A Audio Extractor
Drop a WebM video and get its audio track as M4A. Nothing is uploaded — processing happens entirely on your device.
Drop files here, or click to select
What is WebM?
An open web-oriented video format, common as screen-recorder output.
What is M4A?
AAC-based audio standard in the Apple ecosystem, used by iPhone Voice Memos.
FAQ
Are my files uploaded?
No. Conversion runs entirely inside your browser; your video and audio never reach any server.
Is it free?
Completely free. No account, no installation.
Can I convert long files?
Yes, but processing runs on your device, so long files can take a few minutes. The first conversion also downloads the engine (~31MB).
Can I choose the quality?
Use the quality slider to balance bitrate and file size.