Video Converter
Convert videos between MP4, WebM and MKV.
Runs on your device · no upload
Loading tool…
About Video Converter
Video Converter changes the format of your video to MP4, WebM or MKV. Conversion happens on your device.
1
Add your video
Choose a clip. It is processed locally in your browser.
2
Adjust and run
Pick quality or timing, then start. Long videos take a moment.
3
Download
Save the result. No watermark, no sign-up.
Frequently asked questions
Which formats can I convert to?
MP4 (H.264/AAC), WebM and MKV.
Is there a file size limit?
No fixed limit, but very large videos can be slow or run out of memory on phones.
Are my files uploaded anywhere?
No. This tool runs in your browser, so your file stays on your device and is never sent to a server.