Prototyper

Prototyper is a visual workspace that puts design, code and AI agents on one canvas. A sketch on the infinite canvas becomes a running React application, and the link runs both ways: move a shape and the code follows, edit the code and the canvas updates. Live preview runs inside the workspace, so what a team reviews is the working product rather than a static mockup. It is aimed at designers who want to ship without a handoff, product managers who prefer functional prototypes, founders exploring several directions at once, agencies working on live products with clients, and teams that pair human designers and engineers with coding agents such as Claude Code, Codex and Cursor. Agents appear in the multiplayer session alongside people and can take on parallel tasks. The workspace ships a library of more than 50 typed, accessible components, design tokens for brand consistency and MCP server connections to GitHub, Google Drive, Figma and other tools. Pricing is published monthly. Free is $0 with 5 AI messages a week, 2 workspaces, 100 MCP tool calls a week, 7 days of version history and the option to bring your own agent. Premium is $20 per month with unlimited AI messages, workspaces and tool calls, real time collaboration, 30 days of history and $20 of bundled AI credits. Team is $30 per seat per month with pooled credits, 90 days of history, Google and Microsoft single sign on, roles and permissions and free viewer seats. Team Business is $100 per seat per month with larger pooled credits and advanced permissions, and Enterprise is priced by sales.