Part of Joy Interfaces as data.
Interfaces as data.
Rendered anywhere.
Write a UI as one JSON document. Joy DOM renders it as native UI on web, iOS, and Android.
Monthly revenue
$48,250
Last 30 days
↑ 12.4%
312
New customers
$89.40
Avg. order
Why Joy DOM
Web standards
Joy DOM uses a subset of HTML and CSS. You already know the layout model.
Just JSON
Every interface is a JSON file. Diff it and track it in version control.
Native renderers
The same document drives React, Swift, and Kotlin. React Native comes next.
Pixel parity
Each renderer passes the same fixtures, so a document looks the same on every platform.
Agent-ready
Language models write Joy DOM as structured output. A JSON Schema checks it.
Custom components
Register your own native component for a node type and Joy DOM draws it in place.
Joy DOM vs PDF
PDF
Joy DOM
Format
Binary file
Plain JSON
Layout
Fixed page size
Responsive to any screen
Output
One static render
Native UI on web, iOS, Android
Editing
Regenerate the file
Diff and version in git
Interactivity
Static
Live components
Authoring
Exported from an app
Generated from data or an agent
Joy DOM is part of Joy, a toolkit of composable interfaces for developers and agents.
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