keycut
Fast lossless video editor - cut and join video without re-encoding
KeyCut is a free, open-source (MIT) video editor that cuts and joins videos without re-encoding. It splits video at keyframes, so cuts snap to instantly-decodable frames and exports are direct copies - original quality, no waiting.
Features: lossless cut & join; export kept segments as one file or per marker; split/delete/restore/merge on the timeline; optional x264 compression presets (720p/1080p/1440p/2160p); audio waveform view; keyframe snapping; re-key at 2/6/10 fps.
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