Beat sync video editing: cut your video to the music

Make the video feel like the music.

Bring a track and the mood you want. Build the pace around the beat and changes in energy, with automatic checks to keep the edits on time.

videoFn gives Claude or ChatGPT the tools to be your editing partner on Mac. Give it the brief, watch the preview and shape the result together. The editor is there whenever you want to make changes yourself.

cut this coffee and drumming footage to the music, then double the cutting pace

analysing the supplied funk track

placing the first cuts on alternate detected beats

switching to every detected beat

adding kinetic type over the final shots

Coffee preparation and kitchen drumming, cut to the supplied funk track by AlexGuz. Unmute to hear the cuts land.

Works with Claude, ChatGPT and other AI agents

Video rendering runs on your Mac

Free to try. €13.99 once to buy it outright

Give the edit a sense of rhythm.

Let the track shape the pace

Use detected beats and changes in energy to shape the cuts and holds. A quieter section can have room to breathe.

Build to a moment

This example starts on alternate beats, then cuts on every beat. Use that change of pace to build towards a title or closing shot.

Check the timing

The agent checks whether edits land on their intended beats and works on mismatches. Watch and listen in the preview, then give notes on how it feels.

Also: turn your music into a video, animated text, check and improve your video and everything else.

Free to make videos. €13.99 to lose the watermark.

Music videos, montages, ads. Anything with a pulse.