The Figma alternative where designs already run.
Figma perfected collaborative design. Prototyper keeps the multiplayer canvas and removes the handoff: what you and your agents put on the surface is a real, running application, not a picture of one.
What Figma does well
The multiplayer canvas
Figma made design collaborative, in the browser, for everyone. That bar is real and they set it.
The ecosystem
Plugins, community files, design systems. A decade of network effects.
Design ops at scale
Libraries, variables, and branching for big design orgs.
Where Prototyper is different
The output runs
A Figma frame is a promise; a Prototyper app is a deliverable. Everything on the canvas compiles. Click it, type in it, ship it.
Agents are participants, not plugins
Claude Code, Codex, and Cursor work on your canvas over MCP with a real file system. They build alongside you instead of generating into a chat window.
No handoff
The design-to-code gap doesn't get bridged; it stops existing. The code your agent wrote on the canvas is the code you take to production.
Bring your own agent
Use the AI subscription you already pay for. Prototyper is the workspace, not the model.
Side by side
| Prototyper | Figma | |
|---|---|---|
| Real running output (React) | Yes | partial |
| Multiplayer infinite canvas | Yes | Yes |
| AI agents as first-class workers | Yes | No |
| Bring your own AI subscription | Yes | No |
| Design system libraries at org scale | partial | Yes |
| Plugin ecosystem | No | Yes |
Comparison reflects our understanding as of July 2026; tell us if something is out of date.
Frequently asked questions
- Is Prototyper a Figma replacement?
- For prototyping and shipping, yes. For org-scale static design ops, Figma still earns its seat. Many teams run both.
- Can I import Figma files?
- No. You describe or sketch what you want, and agents build running versions of it.
- Do I need to know how to code?
- No. You describe the outcome; the agent writes the code and you steer by reacting to the running result.
See it run instead
The fastest way to compare is to put an agent on the canvas and watch it build. Free to start, no credit card.