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LosslessCut The swiss army knife of lossless video/audio editingShave gigabytes off video and audio files in seconds without loss of qualityTraditional video editorsAny operation in a normal video editor requires you to re-encode the whole file which can take hours and you will gradually lose quality every time you cut.LosslessCutLosslessCut will do the same in seconds without losing quality: LosslessCut simply cuts the data stream and directly copies it over.LosslessCut aims to be the ultimate cross platform ffmpeg GUI for extremely fast and lossless operations on video, audio, subtitle and other related media files. The main feature is lossless trimming and cutting of video and audio files, which is great for saving space by rough-cutting your large video files taken from a video camera, GoPro, drone, etc. It lets you quickly extract the good parts from your videos and discard many gigabytes of data without doing a slow re-encode and thereby losing quality. Or you can add a music or subtitle track to your video without needing to encode. Everything is extremely fast because it does an almost direct data copy, fueled by the awesome ffmpeg which does all the grunt work.Features Lossless cutting of most video and audio formats Losslessly cut out parts of video/audio (for cutting away commercials etc.) Lossless merge/concatenation of arbitrary files (with identical codecs parameters, e.g. from same camera) Lossless stream editing: Combine arbitrary tracks from multiple files (ex. add music or subtitle track to a video file) Losslessly extract all tracks from a file (extract video, audio, subtitle and other tracks from one file into separate files) Remux into any compatible output format Take full-resolution snapshots from videos in JPEG/PNG format Manual input of cutpoint times Apply a per-file timecode offset Change rotation/orientation metadata in videos View technical data about all streams Timeline zoom and frame/keyframe jumping for accurate cutting around keyframes Saves per project cut segments to project file View ffmpeg last command log so you can modify and re-run recent commands on the command line Undo/redo Give labels to cut segments View segment details, export/import cut segments as CSV Video thumbnails and audio waveformExample lossless use casesRemove audio tracks from a fileAdd music to a video (or replace existing audio track)Link audio and video tracks from separate recordingsInclude a subtitle into a videoExtract music track from a video and cut it to your needsCut out commercials from a recorded TV show - Without having to re-encode. You can also change format from TS to MP4 at the same time.Fix rotation of a video that has the wrong orientation flag set - Great for rotating phone videos that come out the wrong way without actually re-encoding the video.Quickly change a H264 MKV video to MOV or MP4 for playback on iPhoneImport a list of cut times from other tool as a EDL (edit decision list, CSV) and run these cuts with LosslessCutExport a list of cut times as a CSV EDL and run these in another toolLoop a video / audio clip X times quickly without re-encodingAdvanced multi-step workflowsTip: you can use LosslessCut in multiple passes in order to achieve separate trimming of individual tracks: Open a file an export all tracks Open the exported track files independently and cut them as desired Add the track back to the video and combine them to one output videoDownloadIf you want to support the continued work on LosslessCut, and want the advantage of a secure and simple installation process with automatic updates, consider getting it from your favorite APP storeIf you prefer to download the executables manually, this will of course always be free: Mac OS X Windows Linux tar.bz2 More releasesIf you find LosslessCut useful, I'm very thankful for donations.Supported formatsSince LosslessCut is based on Chromium and uses the HTML5 video player, not all ffmpeg supported formats will be supported smoothly. The following formats/codecs should generally work: MP4, MOV, WebM, MKV, OGG, WAV, MP3, AAC, H264, Theora, VP8, VP9 For more information about supported formats / codecs, see https://www.chromium.org/audio-video.Unsupported files can still be converted to a supported format/codec from the File menu. (Try fastest variant first.) A low quality version of the file (without audio) will then be created and opened in the player. The cut/export operation will still be performed on the original file, so it will be lossless. This allows for potentially opening any file that ffmpeg is able to decode.