Convert MKV to MP4, free
Convert MKV to MP4 entirely in your browser — your file never uploads. Free, no signup, no watermark. Need a transcript afterward? Sign up for 30 free minutes.
Drop a file or click to choose
Free · no signup · runs in your browser · nothing uploads
Choose a fileConvert MKV to MP4 in three steps
Drop your MKV, let it convert in the browser, and download the MP4. That’s it — no account, no upload, no watermark.
Nothing uploads
The whole conversion happens on your device. Your file never touches a server, so there’s nothing for us to keep.
Why MP4
MKV is great for storage but doesn’t play everywhere. MP4 plays on virtually any phone, browser, and editor — handy for sharing or uploading.
Need a transcript?
Once it’s an MP4, transcribe it with free speaker labels — your first 30 minutes are free.
Frequently asked questions
Does my file upload?
No — the conversion runs in your browser. Your video never leaves your device.
Is it free?
Yes. Free, no signup, no limits.
Will I lose quality?
No — MKV and MP4 can carry the same video, so this is a fast container change, not a re-encode, where possible.
Can I transcribe it?
Yes — sign up for 30 free minutes and we'll transcribe it with speaker labels.