Lossless Cut
Lossless cross-platform video and audio trimming and cutting tool.
External Tool
This open-source tool is maintained externally. View the source on GitHub to learn more or run it yourself.
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Use it free
Open the official tool or demo — no account needed.
Self-host it
Run the open-source version on your own infrastructure.
What is Lossless Cut?
LosslessCut is an open-source video and audio editing tool designed for performing lossless operations on media files. Its primary purpose is to enable users to trim, cut, and extract segments from videos and audio without re-encoding, preserving original quality. This tool is particularly useful for editors, content creators, and professionals working with large media files from cameras, drones, or GoPro devices. The problem it addresses is the inefficiency of traditional video editing tools that require time-consuming re-encoding processes, which can degrade quality and consume significant computational resources. By leveraging FFmpeg, LosslessCut achieves near-instantaneous edits through direct data copying, making it ideal for workflows where maintaining source quality is critical.
How it works
LosslessCut is a cross-platform graphical user interface (GUI) built around FFmpeg, enabling users to perform lossless trimming, cutting, and extraction of video, audio, and subtitle tracks. It is designed for users who need to reduce file sizes of large media files without compromising quality, such as video editors or creators working with raw footage. The tool's core function is to allow users to remove unwanted segments from videos or audio files while retaining the original compression and quality. This is particularly valuable for projects where re-encoding is impractical or undesirable, such as archiving raw footage or preparing clips for quick sharing. LosslessCut supports lossless trimming of video and audio files, allowing users to extract specific time ranges without re-encoding. It also handles subtitle editing, enabling synchronization adjustments. The tool can extract audio tracks from video files and vice versa, and it supports batch processing for multiple files. Its integration with FFmpeg enables advanced operations like format conversion and metadata adjustments while maintaining lossless quality.
How to use it
- 1Open LosslessCut and select the media file to edit. 2. Use the timeline to set the start and end points for trimming. 3. Choose output settings, such as file format and destination folder. 4. Click 'Export' to generate the lossless trimmed file. Practical tips include using batch processing for multiple files and previewing edits before exporting to ensure accuracy.
What it can do
- video trimming
Use cases
Assumptions and limitations
Assumptions
- source: https://github.com/mifi/lossless-cut
- license: MIT — free to use
- privacy: Self-hosted — you control your data
Limitations
- Limited support for advanced video filters or effects
- No real-time preview of edits during the trimming process
- Requires FFmpeg installation, which may complicate setup for some users
- Performance may degrade with very large files or complex workflows
- No built-in support for video stabilization or color correction
Understanding the result
Lossless cross-platform video and audio trimming and cutting tool.
Tool details
- Clearly flagged when a network request is needed.
- No account, no sign-up, and no tracking of your content.
- Powered by (MIT).
- Built with
- (mifi/lossless-cut)
- License
- MIT
- Runs locally
- No — requires a network request
- Verification
- Not yet verified
- Input
- Query
- Output
- Text
Built with mifi/lossless-cut. OpenToolVault provides the discovery and browser interface while crediting the original project maintainers.
- Built with
- License
- MIT
Open-source project
OpenToolVault is an independent directory. We are not affiliated with or endorsed by this project.
References
- / — GitHub Repository
Upstream project · GitHub
- MIT License
Upstream project
Frequently asked
How does LosslessCut maintain lossless quality during editing?
LosslessCut uses FFmpeg's direct data copying to trim and cut media files without re-encoding. This means it only removes or adjusts specified segments while preserving the original compression and quality of the source file. The tool avoids processing the entire file, which ensures minimal data loss and faster processing times.
Can LosslessCut handle all video and audio formats?
LosslessCut relies on FFmpeg's format support, which covers a wide range of video and audio codecs. However, compatibility depends on the specific codec and container format of the source file. Users may need to install additional FFmpeg codecs or convert files to supported formats before editing.
How do I trim a video file to extract a specific scene?
Open the video in LosslessCut, use the timeline to set the start and end points of the desired segment, then select 'Export' to save the trimmed file. Ensure the output format matches the original file's format to maintain lossless quality. For example, trimming a 2-hour video to a 10-minute clip retains the original resolution and compression.
How does LosslessCut compare to professional video editing software like Adobe Premiere Pro?
LosslessCut is designed for lossless trimming and basic editing tasks, while Adobe Premiere Pro offers advanced features like color grading, effects, and multi-track editing. LosslessCut excels in speed and simplicity for specific workflows but lacks the comprehensive tools required for complex video production.
What should I do if LosslessCut fails to process my file?
Check if the file format is supported by FFmpeg, verify the file's integrity, and ensure all dependencies are installed correctly. If the issue persists, consult the project's documentation or community forums for troubleshooting guidance. Corrupted files or unsupported codecs may require conversion before processing.