Founded by Steve Sewell and Brent Locks, who met at UC Berkeley in 2011 and shared a dream of building technology that could help people turn ideas into products, Builder.io has grown into an AI-powered platform for building, editing, and publishing digital experiences faster. Its main use case is bringing designers, developers, product teams, and AI agents into one workflow, allowing teams to turn ideas or Figma designs into production-ready apps and UIs, while also visually editing content and managing marketing pages without constant developer handoffs. Users especially like Builder.io because it works with their existing codebase and Git workflow, connects with tools such as Figma and VS Code, and makes it easier for non-developers to make real changes without waiting on engineering. The platform is also useful for prototyping, app development, marketing sites, and content management, making it a flexible option for teams that want to ship faster while keeping their brand and design system consistent. Pricing starts with a free plan, while paid Fusion plans currently start at $24 per user/month for Pro and $40 per user/month for Team when billed annually; Enterprise pricing is custom.