Lossless Cut Manual

(often referred to as lossless-cut ) is an open-source, cross-platform utility designed for fast, lossless trimming and cutting of video and audio files. Unlike traditional video editors, it does not re-encode the media; instead, it copies data directly from the source, resulting in near-instant operations and zero quality loss.

Because it does not re-encode, you cannot cut at any frame. You can only cut at Key frames (usually every 1 to 10 seconds). If you need frame-accurate cuts, you must use a traditional editor like DaVinci Resolve.

icon). When you export, LosslessCut can either save them as separate files or them into one seamless video. Keyframe Cutting: lossless cut manual

: Turn this off if you want to strip audio or subtitles.

Here are three workflows I use daily that rely on Lossless Cut. (often referred to as lossless-cut ) is an

Move the timeline cursor to where you want the clip to begin. Press I to set the "In" (start) point.

Report compiled from Lossless Cut documentation as of April 2026. For the latest updates, refer to the official GitHub repository. You can only cut at Key frames (usually

Drag the seek bar to the end of your desired segment. Press the ] button (or O on your keyboard).