🎬 Overview of LosslessCut 3.66.1
LosslessCut 3.66.1 is a lightweight, open-source video editor designed for quick and lossless video cutting and trimming. Built on top of FFmpeg, it lets you remove unwanted parts of a video or merge clips together without re-encoding, preserving the original quality and speed.
This makes it the perfect tool for users who need to clean up large video files, split footage for YouTube or social media, or extract highlights from recordings — all without the complexity of traditional video editors. ⚡
🌟 Key Features
✂️ Lossless Editing:
Cut or trim videos without re-encoding — no quality loss, no time wasted.🎞️ Format Support:
Supports a wide range of formats like MP4, MKV, MOV, AVI, and more thanks to FFmpeg.📚 Batch Processing:
Trim or merge multiple files at once, perfect for large editing projects.🎧 Audio & Subtitle Handling:
Include or exclude audio tracks and subtitles with a few clicks.🔍 Frame-Accurate Cutting:
Preview frames to make precise edits at the exact timestamps.🧩 Merge Multiple Clips:
Combine several video segments seamlessly into one continuous file.💡 Portable & Fast:
Lightweight installation with instant response — ideal for quick editing tasks.
🧠 Why Choose LosslessCut?
Unlike traditional editors that require time-consuming rendering, LosslessCut 3.66.1 uses direct stream copy, so your video’s original quality is fully preserved. This means you can cut hours of footage in seconds.
It’s an excellent choice for professionals and casual users alike — especially YouTubers, streamers, and videographers who need fast and clean results. Since it’s open-source, you also benefit from continuous updates and full transparency of its codebase. 🧠
💼 Common Use Cases
🎥 Trimming long videos into short clips for sharing
📺 Removing commercials or unwanted sections from recordings
🧩 Merging multiple clips into one file without quality loss
🎧 Extracting specific audio segments from videos
🗂️ Managing large video libraries with quick edits
⚙️ System Requirements
OS: Windows 10 / 11, macOS, or Linux
CPU: Intel / AMD Dual-Core or higher
RAM: 2 GB or more
Disk Space: 150 MB free
Additional: FFmpeg (included in the package)
🏁 Conclusion
LosslessCut 3.66.1 is a must-have for anyone looking to perform fast, accurate, and lossless video edits. It delivers professional results with zero re-encoding, preserving 100% of your video’s original quality. Whether you’re editing personal recordings, social media content, or large projects, LosslessCut is your go-to minimalist editor. 🚀
🔗 Official website:https://github.com/mifi/lossless-cut
✔ Tested: This software was tested on Windows 10 & Windows 11 and works smoothly without issues.
Frequently Asked Questions
- Is this software free?
Yes, it can be downloaded and used for free. - Does it support Windows 11?
Yes, it works perfectly on Windows 10 and 11. - Is it safe to use?
Yes, the software was scanned and tested before publishing.
Last updated: January 2026