LosslessCut
video and audio cutter (lossless)
LosslessCut is a free, platform independent video editing software, which supports numerous audio, video and container formats.
It is a graphical user interface, with macOS, Windows and Linux support, using the FFmpeg multimedia framework. The software focuses on the lossless editing of the video files. By copying the selected image sequences without transcoding or re-rendering, it achieves very fast creation of the target file in comparison to tools that re-encode frames.
Completely lossless copying is achieved when the source file is cut at the reference frames of a group of pictures only. This is being visualised when operating the program.
With a size short of 100 MB, the software is small and portable, thus it can be started from an external storage medium without prior installation. The FFmpeg framework needs to be present on the computer already.
Core functions
Essential functions of the software are:
Cutting videos and reassembling scenes in selectable order.
Separation of audio or subtitle tracks from video, or adding of a new track
Concatenating multiple tracks with the same codec parameters
Multiplexing into selectable container format
Saving of single images (snapshots) in JPEG or PNG format
Adjustment of metadata for rotation or orientation of the video
Zoomable timeline with annotation of the reference frames and jump functions
Display of thumbnails of the video and the waveform of the audio track
Display, name and reorder list of cut segments
Automatically saving the cut list in CSV format; import and export cut lists
Display the generated FFmpeg command line for individual adjustments
Limitations
Typically, the segment start will be "rounded to the nearest previous keyframe", thus the author emphasizes that the program is not meant for exact cutting.
The public source identifies “LosslessCut” as video and audio cutter (lossless). This brief keeps that definition visible, then builds a research path around LosslessCut, video and audio.
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This entry incorporates text from “LosslessCut” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.