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Convert WebM to MKV
Turn your WebM file into MKV right here — nothing is uploaded, no watermark, no signup. MKV is a flexible container that holds high-quality video and multiple tracks.
InputWEBM filesOutputMKV file
Questions, answered
Does this webm to mkv tool upload my file?
No. The selected source is read by this browser and processed on this device. It is never sent to an Edit Videos server.
Which files work with webm to mkv?
WEBM files can be used here. The finished file is mkv file and is created on this device.
Can I check the webm to mkv result before download?
Yes. The editor keeps the source and pending settings local, provides the relevant visual or audible preview, and downloads the completed result you reviewed.