How to Cut a Video into Parts with AI on Mac

By NUR Technologies · October 28, 2026 · 4 min read

Cutting a video by hand means watching it, finding the points and trimming each one. A Mac can do simple cuts for free. When the video is long and you want the good parts picked for you, AI helps.

Manual cuts with QuickTime Player (free)

1. Open the video in QuickTime PlayerDouble-click it, or open it from the File menu.
2. Split itMove the playhead to where you want a cut and choose Edit > Split Clip. Repeat for each part.
3. Trim or keep partsUse Edit > Trim to keep a section, then save or export it.

This is fast for one or two cuts and has no AI: you decide every point yourself.

Cut with AI using Offcuts

Offcuts listens to the whole video, scores every second and picks the strongest moments, cut cleanly at the end of a sentence, so each part starts and ends where a thought does.

1. Drop in the videoA file from your Mac, or a link to a video you may use.
2. Review the proposed partsKeep the ones you like and trim the rest.
3. Export the partsExport every clip in one batch, with captions if you want them.