handdraw-story-video

handdraw-story-video turns a set of 7 to 9 hand-drawn illustrations into a 35 to 45 second vertical video where the line art draws itself in and then fills with color, left to right. It is a real build pipeline you clone and run, not a hosted service. MIT on the code.

Setup is the heaviest thing about it. Python 3.10+, Node 18+, FFmpeg, plus HyperFrames and GSAP from npm. You configure a story JSON with your scene data, run a script that extracts line art from your color images, drop the assets into place, then build and render. The render pipeline needs no API keys and no external services, which is unusual in this space right now, though in practice most people will generate the color master images with an image model first.

Illustrators and small content teams making short-form vertical video are the fit. The repo root conforms to the Codex Skill structure, so you can install it into your skills directory and trigger it from an agent instead of running the commands yourself. Free at every size, since the only compute is your own machine.

The catch: it does exactly one visual effect. Line reveal, then gradual coloring, vertical format, fixed length band. That is a template, and templates go stale fast on the platforms this targets. The MIT license also covers code only, so the fonts, music, and any generated images you feed it carry their own terms.