LosslessCut 3.68.0

LosslessCut: Fast, Open-Source Lossless Video Editing Powered by FFmpeg

LosslessCut is a lightweight, open-source Electron application that delivers extremely fast, frame-accurate trimming and basic editing without re-encoding thanks to its FFmpeg backend. Designed for users who need to quickly cut, extract, or join media while preserving original quality, LosslessCut runs on Windows, macOS and Linux and is distributed via GitHub with prebuilt binaries and portable releases.

Core Capabilities

• Trimming and cutting without re-encoding: Uses stream copy mode to export selected segments instantly, avoiding quality loss and long render times.
• Accurate cuts when needed: Offers an "accurate cut" option that re-encodes only small sections between keyframes for frame-precise edits while keeping most of the file untouched.
• Wide format support via FFmpeg: Handles MP4, MOV, MKV, WebM, AVI and many more container and codec combinations supported by FFmpeg.
• Audio and subtitle handling: Extract audio tracks, remove audio, mute segments or copy subtitle streams without remuxing the entire file.
• Batch export and timeline workflow: Queue multiple cuts for batch processing and work through long recordings quickly.
• Join and merge: Concatenate compatible segments into one file while preserving streams and timestamps.
• Frame capture and thumbnail generation: Grab still frames or auto-generate thumbnails for quick preview and cataloging.

Performance and Quality

Because LosslessCut uses FFmpeg to perform stream copying by default, operations are effectively instantaneous for supported formats and complete segments are preserved bit-for-bit. When you need precise, frame-accurate edits, the app limits re-encoding to the minimal necessary region, delivering a balance between speed and editorial control. This workflow makes LosslessCut ideal for trimming large raw files, dashcam footage, screen recordings or any workflow where keeping the original quality is critical.

Usability and Interface

• Minimal, keyboard-friendly UI: The interface focuses on timeline scrubbing, in/out markers and quick export buttons. Keyboard shortcuts speed up repetitive tasks.
• Cross-platform installers and portable builds: Official releases on GitHub provide native installers and standalone packages so you can run it without installation when necessary.
• Drag-and-drop and folder support: Drop single files or whole folders into the app, and use batch export to process many clips in one session.
• Active development and community: Hosted on GitHub with frequent updates, issue tracking and community contributions for new features and bug fixes.

Advanced Features for Power Users

• Command-line options and reproducibility: Integrates with FFmpeg workflows and supports exporting cut lists for scripted batch processing.
• Metadata and track selection: Copy or strip metadata, choose specific audio/subtitle tracks and preserve timestamps for professional workflows.
• Rotate, flip and simple rewraps: Apply container-level changes and rotations without full re-encode when supported by the codec.

Installation, Updates and Licensing

• Free and open-source: Distributed under an open-source license on GitHub; source code and release binaries are available for inspection and download.
• Regular releases: Prebuilt binaries for Windows, macOS and Linux are posted to the GitHub releases page and updated by the maintainer.
• FFmpeg dependency: Ships with or links to FFmpeg; having a recent FFmpeg build ensures best format compatibility and feature support.

Limitations and Considerations

• Not a full NLE: Focused on trimming, cutting and simple tasks — it lacks multi-track timelines, advanced transitions and color grading.
• Keyframe constraints: True lossless cuts must align to keyframes unless you allow the small re-encode for accurate cuts.
• Electron footprint: The desktop app uses Electron, so it has a larger binary size than native utilities, though runtime performance for trimming tasks remains fast.

Who Should Use LosslessCut

Ideal for content creators, journalists, archivists, video editors and anyone who needs to quickly trim, split or extract segments from large media files without sacrificing quality. It’s especially valuable for processing dashcam footage, long recordings, camera clips and batches of files where speed and fidelity matter.