About FractalForm

FractalForm turns text into animated system diagrams you can step through and share. The language is purposefully small. A few lines is enough to explain how a system behaves.

Here's what a basic API call looks like:

component client "Browser" <shape:browser>
component api "API" <shape:server>
component db "PostgreSQL" <shape:database>

client -> api : GET /users
api -> db : SELECT * FROM users
db -> api : 42 rows
api -> client : 200 OK

Paste that into the editor and you get a diagram:

Basic API call diagram

Your documentation becomes the script. The editor turns it into something you can watch: arrows become animated particles, state updates appear inside nodes, overlays narrate what's happening and why. Write the text, hit Run, step through it. The Reference page covers the full syntax.

The output is a shareable URL. Useful for explaining complex systems, onboarding docs, and teaching. You can also use AI to author diagrams from a single prompt.

Try it

Start building in the Editor. Pick one of the built-in examples or start typing.