Compress & Convert
WebM to MP4
Turn WebM recordings or downloads into MP4 files for wider compatibility.
Waiting for media
Processing video...No file selected
Selected files stay on this device. File sizes shown before processing use browser metadata only, such as 1.00 MB units.
Your video is processed locally in your browser and is not uploaded to our servers. Processing starts only when you click the button — nothing happens until then.
How to use
- 1.Upload WebM - Select your WebM video.
- 2.Choose quality - Use balanced output or customize resolution.
- 3.Convert - Convert to MP4 locally in your browser.
- 4.Download - Preview and save your MP4 file.
Features
Supported formats
Privacy
Files are handled as local browser objects. BeYourTools does not upload video or audio contents, does not store filenames, and does not send media to third-party processing APIs.
FAQ
Why convert WebM to MP4?
MP4 is accepted by more apps, social platforms, and older devices.
Will transparency be preserved?
MP4 does not generally preserve alpha transparency. Use WebM if transparency is required.
Is my video uploaded to a server?
No. This tool processes your files locally in your browser. BeYourTools does not upload, store, or send your media to a processing API.