thumb-gen

Console tool that generates a contact-sheet style thumbnail image for MP4 and MKV video files.

Desktopfree

thumb-gen is a free, open-source Python console tool that generates a customizable contact-sheet style thumbnail for MP4 and MKV video files, combining several frames into a grid with an optional text info panel. It can be run directly from the command line or used as a Python library, aimed at people managing or previewing local video files.

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