About OpenConvertVideo
Most online video converters work the same way: you upload your file to someone else's server, wait in line behind everyone else's uploads, and hope it gets deleted afterward. OpenConvertVideo skips all of that — conversion happens right inside your browser tab, so there's no upload to wait for and nothing ever leaves your device.
It's a small, free tool built around one idea: your video is your business, not ours. No account, no imposed file size limit, and for common formats like MP4 and MOV it hands the encoding to your browser's own built-in encoder, so it runs about as fast as your device allows.
Questions or feedback? Email contact@openvideoconverter.com. OpenConvertVideo is built and operated by CphVisuals, a registered business in Denmark — see the Imprint for the legal details.
Nothing to upload
Conversion runs with a WebAssembly build of ffmpeg, right in this browser tab — no upload wait, no queue.
No file limits
Since nothing uploads, there's no server-side size cap. The only ceiling is your device's own memory.
Free, no account
No sign-up, no subscription. A small ad on the home page and the occasional Ko-fi tip keep it running.
Private by architecture
Built on ffmpeg — the open-source engine professionals use — compiled to run safely in your browser. Check the Network tab while converting: nothing goes out.
Like the tool?
It's free to use, no account and no catch — a coffee helps cover hosting.