Readable movement, not matrices.
A motion language for LLMs
Give your LLM
a body.
Give your LLM the Posecode prompt. Posecode turns its response into structured, editable 3D human motion in your browser.
Then ask: “Write a controlled superhero landing.”
Targets stay within configured ranges.
Live 3D, no server-side diffusion.
How it works
One prompt. Three clear steps.
-
01
Ask
Describe a representable movement.
-
02
Generate
A capable LLM writes a tiny
.posecodefile. -
03
Move
The browser validates, constrains, and animates it.
Movement library
Ask for almost any move.
Explore launch-ready examples across fitness, rehab, dance, and more.
For developers
Open all the way down.
Use the language, parser, renderer, or agent tools. Everything is Apache 2.0 licensed.
Playground →
Edit and preview movement live.
MCP server
Let agents validate movement.
Language spec →
A small, semantic grammar.
ExtendApache packages →
Parser, renderer, share codec.
Your turn
What should a body do?
Ask your LLM. Paste the result. Watch it move.