Video to MKV
Convert MP4, MOV, and AVI videos to MKV format securely in your browser. No ads, no file limits, no uploads.
Drop Video File
Supports MP4, MOV, AVI, WEBM
filename.mp4
0.00 MB
Processing locally. Large files may take a moment.
Why Convert to MKV?
MKV (Matroska Video) is a universal container format that can hold an unlimited number of video, audio, picture, or subtitle tracks in one file. It's the standard for high-quality video storage because it supports almost any codec and is highly resistant to corruption.
100% Private
Your video never leaves your device. We use WebAssembly to run the conversion engine inside your browser, guaranteeing total privacy.
Universal Format
MKV supports all video/audio codecs. Converting to MKV often fixes playback issues on smart TVs and media players.
Lossless Quality
Our converter attempts to copy the video stream directly into the MKV container when possible, preserving original quality exactly.
