Your files stay on your device
M4V to MKV
Convert MPEG-4 Video (iTunes) to Matroska Video
M4VMKV
Drop your M4V files here
or click to browse from your device
Supports: M4V
Everything runs locally in your browser, nothing is uploaded. Files that don't match M4V are ignored, and a file that fails conversion marks its own row without killing the batch.
Nothing in yet
Paste, drop, or type to begin. Everything stays on this device.