Video Cut Detector

Ultra-fast AI cut detection

StoryBoard Express uses a frame-differencing engine that runs entirely in your browser. It analyses pixel-level changes between frames and pinpoints every hard cut in your footage — typically in under 10 seconds for a 5-minute video. No cloud queue, no upload delay, no privacy risk: your footage never leaves your device.

A configurable sensitivity slider lets you catch soft dissolves, or focus only on hard cuts. A minimum-frames filter removes spurious detections caused by flashes or very short transitions.

From cut detection to storyboard in one click

Every detected cut automatically becomes a storyboard panel. Review the shots on the timeline, remove false positives or add missed cuts, then send the entire sequence to the storyboard canvas with one click. You're ready to export a PDF layout or animatic video in under a minute.

Who uses a video cut detector?

• Film editors analysing the structure of a reference edit.
• Directors generating a shot list from existing footage.
• Film students breaking down scenes for classroom analysis.
• Content creators reviewing their own cut for pacing.
• Post-production teams creating shot logs and compliance boards.

Free, no subscription, no account

StoryBoard Express is completely free. There is no subscription tier, no credit system, no watermark on exports. Open the app, detect cuts, build your storyboard, export — all at zero cost. The app also works offline as a PWA after your first visit.

AI image generation for storyboard panels

Don't have footage yet? StoryBoard Express also supports AI-generated storyboard panels. Describe a shot in text, generate a photorealistic or stylised frame with an AI image model, and add it directly to your board alongside real video captures. Mix AI-generated concept panels with actual production frames in the same project.