Video to WebM
Convert any video to WebM online, free in your browser. Re-records your video as WebM — no upload, no watermark. — free, fast and private.
How to use Video to WebM
- Choose a video file (MP4, MOV, AVI or any format your browser can play).
- Pick a quality level.
- Click Convert to WebM and wait while the video plays through once.
- Download your WebM file.
Honest limit: This tool re-records your video as WebM (VP8/VP9) in real time — it is a real conversion, not a rename. Browsers cannot encode MP4/H.264, so WebM is the output format. If your input is already WebM, the file is simply re-recorded at the chosen quality.
Frequently Asked Questions
Is video to WebM conversion free?
Yes, it is 100% free with no sign-up. Your video never leaves your browser.
Why is the output WebM and not MP4?
Browsers can only record WebM video — they cannot encode MP4/H.264. WebM is the open web video format and plays in Chrome, Edge, Firefox and most players.
Will I lose quality?
A little — re-recording always loses some detail. Choose "Best" quality to keep the loss minimal.
How long does conversion take?
About as long as the video itself, because it is re-recorded in real time. Keep this tab open until the download appears.