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Open-source tools & agent skills to build the things you’re paying for.

LosslessCut

Project44.3K

Trim and rearrange video or audio, often without re-encoding.

Added 2026-10-07
Replaces
GitHub

What you can build

  • Trim long camera or drone recordings into selected clips while avoiding a slow re-encode where supported.
  • Extract, remove, or replace audio and subtitle tracks when preparing a video for review or distribution.
  • Import cut times from a CSV or other supported project format, then export the selected segments.
  • Export selected frames or periodic snapshots from a source video for notes, review, or reference material.
  • Label and tag useful segments, then use those labels to organize the resulting clips into a chosen folder structure.

Try this prompt

Build a small internal media-prep workflow around LosslessCut for selecting and exporting clips from a source recording. Use documented capabilities only, and keep the original media untouched. Let a user define cut times, label segments, and export the selected clips; retain the project or cut list so selections can be reviewed and changed later. Report output paths and any failed operations, and document required local setup without assuming batch export exists.

Get started

  1. Get the app

    Choose an official macOS, Windows, or Linux download from the README’s Download section; consult its supported-operating-systems documentation.

  2. Select segments

    Open a media file, mark segments or enter cut times, and refine selections using the timeline’s thumbnails, waveform, and keyframe navigation.

  3. Export or automate

    Export a cut, remux, or track operation. Save per-file segments in a project, or consult the documented CLI and HTTP API for automation.

License & notes

GPL-2.0No model or paid API is required. Manual downloads are free; store editions may be paid. GPL-2.0 obligations apply when modifying or distributing the software.

  • The README says there is no mass or batch export yet; this is not a full timeline-based production editor.
  • Playback uses Chromium, which does not natively support every format or codec; the README describes FFmpeg-assisted playback options.
  • GPL-2.0 applies to redistribution of modified or derivative versions, including source and license obligations. Running the program internally alone does not require publishing source.

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