Do my videos leave my device?

No. Videos are processed in your browser, on your device. There's no upload, so even large files start right away.

Is there a size limit?

No limits from us. Long or 4K videos need more memory and time; phones manage smaller files best.

Yes. Once the page and the video engine have loaded, it keeps working without an internet connection.

Turn MOV, MKV, AVI, WebM and other videos into MP4 that plays everywhere, or into WebM.

Drop videos to convertor paste with ⌘V. Your files stay on your device.

MP4MOVWebMMKVAVI

Do my videos leave my device?: No. Videos are processed in your browser, on your device. There's no upload, so even large files start right away.
Is there a size limit?: No limits from us. Long or 4K videos need more memory and time; phones manage smaller files best.
Does it work offline?: Yes. Once the page and the video engine have loaded, it keeps working without an internet connection.

Ready-made settings for common jobs.