Anyfile is in beta, so a few things may not work perfectly yet. Tell us what you find
Free converter
Anyfile converts an MP4 video to a Matroska video for free, right in your browser: the file is never uploaded.
Files are converted in your browser and never uploaded. By using Anyfile you agree to the Terms of Use.
| Picture | Copied as it is when it fits; otherwise re-encoded by your browser at the same size and frame rate |
|---|---|
| Sound | The first sound track is kept |
| Subtitles and chapters | Not carried over yet |
| File size | About the same |
When to use MKV: Films and series with several audio languages and subtitle tracks.
Open the file in the video editor to choose before downloading:
.mp4
The MPEG-4 Part 14 container, based on Apple’s QuickTime file format. It commonly holds H.264 or HEVC video with AAC audio, plus subtitles and chapters.
Sharing and streaming video on phones, social media, websites and TVs.
Opens in every browser and phone, QuickTime, VLC, Windows Media Player
About MP4 files.mkv
An open container first released in 2002 and named after Russian nesting dolls. It holds any number of video, audio and subtitle tracks, plus chapters and attachments such as fonts.
Films and series with several audio languages and subtitle tracks.
Opens in VLC, mpv, IINA, Plex, Windows Media Player on Windows 10 and later
About MKV filesGoing the other way? Convert MKV to MP4
Everything that converts to MKV
Need to change it first? Open the video editor
Drop your MP4 file on this page, or choose it. Anyfile converts it on your device in a moment and the MKV downloads straight away. To change it first, open it in the video editor.
No. The file is read and converted by your own browser, and nothing is sent to a server. You can check: open your browser’s developer tools, go to Network, and convert a file. No upload appears.
Yes. Drop them together and you get one ZIP with every MKV inside.