WebM to MP4 converter
Convert WebM files to MP4 in a couple of clicks. Screen recordings and web videos come as WebM; MP4 works in more apps. Free, no sign-up, no watermark.
Files are uploaded to our server, converted with FFmpeg, and deleted as soon as you get the result. Large videos can take a few minutes. Just resizing images? The image resizer runs in your browser with no upload.
How to convert WebM to MP4
- Drop your WebM files in the box above (up to 200 MB each, as many as you like).
- MP4 is already selected as the output format.
- Click Convert, then save each MP4 or download them all as a ZIP.
Screen recordings and web videos come as WebM; MP4 works in more apps.
WebM is web video (VP9/VP8) from browsers and screen recorders. MP4 is the video format that plays everywhere (H.264 video + AAC audio).
Files are converted on our server with FFmpeg and deleted as soon as you get the result. No sign-up, no watermark.
WebM to MP4: questions
How do I convert WebM to MP4?
Drop the WebM file above, keep MP4 selected, click Convert and save the result. It's free and works for several files at once.
Does converting WebM to MP4 lose quality?
Re-encoding a compressed file loses a tiny bit each time. The defaults here are high quality, so you shouldn't see a difference.
Is it free? Is there a watermark?
Free, no account, no watermark. The only limit is 200 MB per file.
Do you keep my files?
No. Each file is stored only while it converts, then deleted as soon as the result is sent back.