Video
MKV to MP4
Turn a Matroska MKV into an MP4.
- 1Upload
- 2Options
- 3Process
- 4Download
Drop a file here, or browse.
MKV · under 100 MB stays on this device · a larger file is not accepted
MKV to MP4 re-encodes a Matroska .mkv to H.264 and AAC in the browser. The picker accepts MKV only, so it is not a copy of the general Convert to MP4 page. Under about 100 MB the file stays on your device. A larger file is not accepted on this page.
This tool is free to use.
Files under about 100 MB stay on this device. A larger file is not accepted on this page.
How to convert MKV to MP4
- Upload one .mkv under about 100 MB.
- Start the encode.
- Download the MP4.
MKV to MP4 FAQs
Does the file leave this device?
Under about 100 MB the file stays on this device. A larger file is not accepted on this page.
Does this accept MOV too?
No. MOV has its own page. This URL is MKV only.
How is this different from Convert to MP4?
Same H.264/AAC encode family, but this canonical URL and FAQ are for Matroska files only.
Page guide updated 2026-09-26