Convert Video Format
Convert a video between MP4, WebM and MOV right in your browser. Pick the format you need and download the result, with no watermark and nothing uploaded to a server.
Choose a video to begin
Drag a video here, or
Everything runs on your device. Your video never leaves your browser.
How it works
- 1
Add your video
Drop in the file you want to convert.
- 2
Pick a format
Choose MP4, WebM or MOV depending on where the video needs to play.
- 3
Convert and download
Run the conversion, check the preview, and save the new file.
Instant & 100% private — nothing is uploaded
Everything runs locally in your browser. Your files are processed on your own device and are never sent to a server, so there are no upload waits, no size limits from us, and nothing is ever stored or logged.
Frequently asked questions
- Which format should I choose?
- MP4 is the safest choice and plays on almost every device, app and social platform. WebM produces a smaller file and is ideal for embedding on a website. MOV is handy when you are working inside Apple software like iMovie or Final Cut. When in doubt, MP4.
- How do I convert MP4 to WebM?
- Add your MP4, choose WebM as the output format, and convert. WebM uses modern compression, so the file is usually smaller than the MP4 at a similar quality, which is why it is popular for web video.
- Does converting lose quality?
- Any format change re-encodes the video, so there is a small quality cost, the same as with any converter. The settings here are tuned to keep that loss low, so for normal viewing the difference is hard to notice.
- Will there be a watermark?
- No. The output is your video, untouched apart from the change you asked for. There is no watermark, no logo and no overlay, and there is no paid tier to remove one.
- Is my video uploaded to a server?
- No. Everything runs locally in your browser. Your video is read and processed on your own device, nothing is uploaded, and nothing is logged or stored.