Convert video
Change a video’s format between MP4, WebM, MOV and MKV directly in your browser.
Private: it runs in your browser and your file is never uploaded. How to check it
MP4, MOV, WebM or MKV · up to 500 MB · processed on your device, the file is never uploaded.
You can also drag a video onto this page.
Your files are processed here, on your device
We do not send the contents of your files or text to any server: everything is processed in your browser’s memory. No account is needed, there is no daily quota and we use no analytics or trackers. Each tool has size limits to protect your device’s memory.
A connection is only needed to load the site. After that you can disconnect and the tools keep working (some previews may need the connection). Hosting may receive technical visit data. Favorites store only tool identifiers in this browser.
How we handle your data →How to use this tool
- Choose the video on your device or drag it onto the page.
- Adjust the options and press the main button; progress is shown while it works.
- Check the preview of the result and download it.
An example you can verify
Change a video’s format between MP4, WebM, MOV and MKV directly in your browser.
Example input
Video.mov · Target MP4
Expected result
video.mp4 playable in most apps
Check the preview of the result and download it.
Convert video: uses and practical guidance
Choose a video and the target format: MP4, WebM, MOV or MKV. If the target container supports the original codecs, the tracks are copied without re-encoding and the change is almost instant. If it does not, for example when moving to WebM, video and audio are re-encoded to compatible codecs, which takes longer and may slightly reduce quality. Audio tracks and rotation are kept. It does not convert to GIF or to legacy formats such as AVI or WMV. Some browsers cannot encode every codec; in that case a notice is shown. Input limit: 500 MB.
Convert video. The video is opened and processed in your device’s memory and is never sent to a server, so speed depends on your computer and the file size. Copying tracks without re-encoding is almost instant; re-encoding can take several minutes for long or high-resolution videos. While it works, the page shows progress and a cancel button. Keep the tab open and visible until it finishes, because some browsers slow down background tabs. The 500 MB limit protects device memory. If the file is larger, split it into parts first. The original is never modified: the tool creates a new file that you download.
Convert video. Play the complete result before using it: check that picture and sound stay in sync, that no seconds are missing at the start or end, and that quality is sufficient for your purpose. Open the file in another player or in the application where you will publish it, because every platform has its own limits for duration, size and format. If the result does not play, try MP4, the most compatible format. Always keep the original video until you have verified the new one, and do not overwrite the source file. If the video contains personal data, remember that this tool does not hide faces or voices: it only changes the file.
A practical check before using the result
Convert video. Change a video’s format between MP4, WebM, MOV and MKV directly in your browser. Check the preview of the result and download it.
Settings and limits
Choose a video and the target format: MP4, WebM, MOV or MKV. If the target container supports the original codecs, the tracks are copied without re-encoding and the change is almost instant. If it does not, for example when moving to WebM, video and audio are re-encoded to compatible codecs, which takes longer and may slightly reduce quality. Audio tracks and rotation are kept. It does not convert to GIF or to legacy formats such as AVI or WMV. Some browsers cannot encode every codec; in that case a notice is shown. Input limit: 500 MB.
Frequently asked questions
Is it free, and do I need to sign up?
Yes, it is free. You do not need to sign up, create an account or install an app, and there is no daily quota: open the tool and use it. The only limits are file sizes, which protect your device’s memory.
Does it leave a watermark on the result?
No. Snipshed adds no watermark, logo or text of its own to the files you download: the result is yours exactly as you configured it.
Is quality lost?
It depends on the codec: when the browser allows it, tracks are copied without re-encoding and there is no quality loss. If re-encoding is needed, a small loss is possible. Check the result before sending it.
Does it work on iPhone and Android?
Yes, from your phone’s browser (Safari, Chrome…) and without installing any app. When it finishes, the file is saved from the browser itself: on iPhone it appears in the Files app and on Android in Downloads. With very large files the phone may run out of memory; try a smaller file or a computer. Video operations need a recent browser with WebCodecs, such as current versions of Safari and Chrome.
Guides
Understand compression, resolution, frame rate and containers so you can prepare a smaller copy that plays correctly.
Check what makes a video heavy, compress it, lower its resolution and convert an iPhone MOV to MP4 before you send it.