File Converter

MKV converter Free, private, no upload.

MKV is a flexible open container that can hold many video, audio and subtitle tracks. It is common for films and screen recordings (OBS). Convert MKV files to MP4, WebM, MOV, AVI and more, privately in your browser.

or drop files anywhere · paste with Ctrl/⌘ + V

Convert MKV to images

Frequently asked questions

What is a MKV file?

MKV is a flexible open container that can hold many video, audio and subtitle tracks. It is common for films and screen recordings (OBS). MKV can hold multiple audio and subtitle tracks and is popular for media libraries like Plex and Jellyfin.

What can I convert MKV files to?

MP4, WebM, MOV, AVI, GIF, MP3, WAV, OGG, Opus, AAC, M4A, FLAC, AIFF. Pick a target after adding your files.

Are my files uploaded to a server?

No. The conversion runs entirely in your browser using WebAssembly. Your files never leave your device, so it is safe for private photos, contracts and business data. Once the page has loaded it even works offline.

Is it free? Are there limits?

It is free, with no sign-up, no watermark and no daily limits. Because nothing is uploaded there is no upload size limit either; the only limit is your device’s memory, which matters mostly for very large videos.