Simple, cross platform tool for lossless trimming / cutting of video and audio files. Great for rough processing of large video files taken from a video camera, GoPro, drone, etc. It lets you quickly extract the good parts from your videos and discard GBs of data without losing quality. It doesn't do any decoding / encoding and is therefore extremely fast. Also allows for taking JPEG snapshots of the video at the selected time. This app uses the awesome ffmpeg🙏 for doing the grunt work. Also supports lossless cutting in the most common audio formats. ffmpeg is included in the app.
- Download latest LosslessCut from releases
- Run LosslessCut app/exe
- On OSX, to open LosslessCut.app, Right Click > Open to bypass the security warning.
- Mac OS X
- Windows (64/32bit)
- Linux (64/32bit, not tested)
Since LosslessCut is based on Chromium and uses the HTML5 video player, not all ffmpeg supported formats will be supported. 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.
- Drag drop a video file into player to load or use ⌘/CTRL+O.
- Press SPACE to play/pause
- Select the cut start and end time. Press I to select the start time, O to select the end time for the cut.
- Press the scissors button to export the slice
- Press the camera button to take a snapshot
The original video files will not be modified. Instead it creates a lossless export in the same directory as the original file with from/to timestamps. Note that the cut is currently not precise around the cutpoints, so video before/after the nearest keyframe will be lost. EXIF data is preserved.
Press h To show/hide list of shortcuts
For old shortcuts see here: https://github.com/mifi/lossless-cut/blob/41d6991c11b0a82b08344fd22a1ea094af217417/README.md#keyboard-shortcuts
- Output videos will have an empty portion in the beginning, see discussion in #13
- If you get an error when cutting any kind of file under Windows, please check your anti-virus. It might be blocking execution of ffmpeg, see #18
This app is built using Electron. Make sure you have at least node v4 with npm 3. The app uses ffmpeg from PATH when developing.
git clone https://github.com/mifi/lossless-cut.git
cd lossless-cut
npm install
In one terminal:
npm run watch
Then:
npm start
# Commit changes
# Wait for Travis
npm version ...
# Update CHANGELOG.md
# Commit CHANGELOG.md
# Push
npm run download-ffmpeg
npm run extract-ffmpeg
npm run build
npm run icon-gen
npm run package
npm run release
- App icon made by Dimi Kazak from www.flaticon.com is licensed by CC 3.0 BY