Explore OpenPaper.

Everything the canvas can do, one topic at a time.

Design

Canvas & tools

Frames, shapes, text, a pencil, and an inspector that speaks CSS.

Design to code

Real HTML and CSS, read back as React and Tailwind.

Shaders

30 live GPU effects you can drop in as layers.

Paste from Figma

Copy in Figma, get editable layers here.

Shortcuts

Paper's keys, plus Figma's where Paper has none.

AI

Agents

A built-in design agent, or bring Claude Code, Cursor and more.

MCP server

37 Paper-compatible tools over HTTP and stdio.

Agents see the canvas

Pixel-identical screenshots, so agents check their own work.

Get going

Install

Clone, build, start. Or double-click on Windows.

Privacy & data

Plain JSON on your machine. Localhost only.

FAQ

API keys, Paper compatibility, platforms and more.

Ready to try it?

Free, open source, and it runs on your machine.

Get started GitHub