Builder

Builder is a visual development platform that enables teams to build software collaboratively with AI agents, creating real product experiences that stay on brand, in code, and ready to ship. Founded by Steve Sewell and headquartered in San Francisco, the platform provides two core products. Builder Fusion allows engineers to code the complex parts of an application, then push the branch so designers, product managers, and QA can polish pixels, edit copy, and run tests in the running application itself, using the actual codebase and design system, eliminating the handoff cleanup that plagues traditional workflows. Builder Publish provides a headless visual page builder and content management system that generates optimized, accessible output directly into existing codebases. The platform supports importing Figma designs and converting them to production code through the Visual Copilot AI model, which has been trained on millions of design-to-code examples. Model Context Protocol connectors expose content and components to AI coding agents like Claude and Cursor. Git integration enables every visual change to produce clean pull requests in React, Vue, Angular, Svelte, Qwik, or plain HTML. Enterprise features include SOC 2 Type II certification, single sign-on, role-based access control, custom workflows, and dedicated infrastructure. Customers include Everlane, Scale AI, Zapier, JCrew, Experian, Faire, Vistaprint, Alo Yoga, ClickUp, Panasonic, Pendo, Schneider Electric, Quantcast, Afterpay, Fabletics, and Vimeo. A free tier is available with paid plans starting for teams.