Start with the feeling
Choose whether the scene should feel warm, restless or dreamlike. Describe the patterns, movement and colours you imagine for the footage, background or text.
Create custom video effects with AI
Imagine an effect. Make it your own.
Describe an effect and have new code written for it. Choose the colours, patterns and movement, then refine the result in the preview until it feels right.
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.
show me a shader as a background, as a text fill, and bending my footage
living-voronoi on the frame
living-voronoi inside the letters
liquid-ripple panel over the cyclist
analog-static, embers, glow, vignette
Built-in shaders over the supplied cycling and drumming footage. Your agent can also write entirely custom shaders.
Works with Claude, ChatGPT and other AI agents
Video rendering runs on your Mac
Free to try. €13.99 once to buy it outright
Your idea. An effect built for it.
Create something from scratch
Go beyond adjusting a preset. The agent can write new code for your effect, with its own patterns and motion. It checks the rendered result and revises the code from your feedback.
Judge it in the video
“Less distortion.” “Keep the title clear.” Use the preview to see the effect in context, then give feedback or make changes in the editor.
Also: animated text, youtube intro and everything else.
Free to make videos. €13.99 to lose the watermark.
Try the strange idea. You can always take the effect off.