mifi/lossless-cut: The swiss army knife of lossless video/audio editing

Reviewers from PCMag and the App Store praise its "magnetic timeline" for fast editing, but note that the import experience for non-native files like MKV can be cumbersome. 3. Alternative MKV Cutting Tools

Extracting specific scenes from large files like raw camera footage or game captures. 2. Final Cut Pro (Creating a "New Project" with MKV)

While Final Cut Pro 12 (released early 2026) offers advanced features like AI-powered dialogue search and magnetic masking, users often still need to convert MKV to MP4 or MOV using tools like VLC or CapCut before starting their edit.

Many users search for how to start a "new project" or "new cut" in using MKV files, as Apple’s professional software historically had limited native support for the format.

It is purely for trimming and merging; you cannot add effects, transitions, or complex titles.

It is extremely fast because it does not re-encode video; it simply "cuts" the data stream. It supports MKV, MP4, and many other formats natively.