Prototyper
Prototyper is a visual workspace for designers, engineers, and agents to turn ideas into running code.
What Prototyper is
Prototyper is a visual workspace for designers, engineers, and agents to turn ideas into running code. Its in-browser preview recompiles when files change and displays the app in desktop, tablet, and mobile viewports. Agents produce typed React and Tailwind code using project conventions and design tokens, and can fix compilation errors and open pull requests. The product includes six built-in agents and supports external agents, alongside real-time collaboration features such as cursors, shared files, and URL-shared prototypes. Its canvas can access integrations including GitHub, Drive, Linear, Notion, and Figma. Prototyper also offers a TypeScript SDK, REST API, and MCP toolset. Generated components are described as typed, themed to a design system, and accessible by default. A free plan is available, with five AI messages a week and two workspaces. Enterprise pricing is custom.
Good
- Previews apps across desktop, tablet, and mobile.
- Six built-in agents and external agent support.
- Real-time collaboration features.
- Exports React and Tailwind code.
- Free plan available.
Watch out
- Free plan allows five AI messages weekly.
- Free plan limits users to two workspaces.
- Enterprise pricing is custom.
- Privacy policy cannot guarantee absolute security.
Who it suits
Prototyper is aimed at designers, product managers, founders, agencies, and teams who want to build and collaborate on coded prototypes. Its free plan may suit people who can work within its weekly message and workspace limits.
Verdict
Prototyper combines collaborative visual work with code generation, previews, and developer access. Review the free-plan limits and paid per-member prices before choosing a plan.
Plans and prices
From Prototyper's own pricing page, checked 3 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Free | Free | 5 AI messages/week · 2 workspaces · 100 MCP tool calls/week · 1 shared collaboration file · 7 days version history · community support · Free forever |
| Premium | $20 a month | Unlimited AI messages, workspaces, and MCP tool calls · realtime collaboration · 30 days version history · $20/mo bundled AI credits plus metered overage · email support · $20 /month; yearly billing saves 20% |
| Team | $30 a month | Everything in Premium · $30/seat/mo pooled AI credits plus metered overage · 90 days version history · Google + Microsoft SSO · roles and permissions · free viewer seats · priority support · $30 /month per team member; yearly billing saves 20% |
| Team Business | $100 a month | Everything in Team · $100/seat/mo pooled AI credits plus metered overage · advanced roles and permissions · free viewer seats · priority support · $100 /month per team member; yearly billing saves 20% |
| Enterprise | Priced on request | SAML SSO + SCIM · custom AI credit allocation · audit logs · custom data residency · dedicated CSM · SLA + 24/7 support · custom contracts · Custom |
The facts
Each one read from Prototyper's own pages, with the date it was checked.
What it does
- Agents
- The product includes six built-in agents and supports external agents such as Claude Code, Codex, Cursor, and custom MCP agents.checked 3 Oct 2026
- Code output
- Agents generate typed React and Tailwind code, use project conventions and design tokens, and can fix compilation errors and open pull requests.checked 3 Oct 2026
- Collaboration
- The collaboration page describes real-time cursors and agent presence, shared files, conversation branching, and prototypes that can be shared by URL.checked 3 Oct 2026
- Components
- Generated components are described as typed, based on Base UI foundations, themed to a design system, and accessible by default.checked 3 Oct 2026
- Data handling
- The privacy policy says personal data may be transferred to and processed in the Netherlands and the United States.checked 3 Oct 2026
- Developer access
- Prototyper says it offers a TypeScript SDK and REST API, and that any MCP client can use its toolset.checked 3 Oct 2026
- Integrations
- The homepage lists GitHub, Drive, Linear, Notion, Figma, MCP servers, and CI among tools that can be accessed from the canvas.checked 3 Oct 2026
- Intended users
- The site names designers, product managers, founders, agencies, and teams as intended audiences for Prototyper.checked 3 Oct 2026
- Live preview
- Its in-browser preview recompiles on file changes and shows the running app across desktop, tablet, and mobile viewports.checked 3 Oct 2026
- Product
- Prototyper describes itself as a visual workspace where designers, engineers, and agents work on the same surface to turn ideas into running code.checked 3 Oct 2026
- Security
- The privacy policy says it uses commercially acceptable measures to protect personal data but cannot guarantee absolute security.checked 3 Oct 2026
- Support
- The pricing page lists community support for Free, email support for Premium, priority support for Team plans, and 24/7 support with an SLA for Enterprise.checked 3 Oct 2026
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