Compress MKV files

Upload an MKV file and shrink its size by re-encoding the video at a lower bitrate. Re-encoding long videos takes a while, so keep the tab open.

Quality

Your file never leaves your device. All processing happens right in your browser, and nothing is uploaded to a server.

Trimming the fat from Matroska files

Screen recorders and capture tools writing MKV often default to very high bitrates. Re-encoding at a sensible rate can cut sizes by half or more while looking identical for screen content, all without the file leaving your browser.

FAQ

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