Convert

Convert WebM to MP4

VP9 video with Opus audio for the web. H.264 video with AAC audio in an MP4 container.

Free to use — no account or signup required.
Your file is deleted the moment the conversion finishes.
Handles large files — up to 1 GB per conversion.
Prefer code? The same conversion is one API call away.

io bay · WebM → MP4

Input · WebMDrop a WebM file here, or click to browse.webm

Idle

Questions

faq

How do I convert WebM to MP4?

Upload or paste your WebM file, press Convert, and download the MP4 result. It's free and no account is required.

Is my file kept after conversion?

No. Your uploaded file is deleted the moment the conversion finishes, and the converted output expires shortly after.

Can I run this conversion over an API?

Yes. The same WebM to MP4 conversion is available as a REST API.