Capacity transforms ideas into working web applications using AI-powered development. The platform enables users to build full-stack applications without traditional coding by generating production-ready code based on specifications.

Capacity features Spec Coding, which allows users to define project requirements before code generation begins. The platform includes an AI cofounder that helps brainstorm ideas and build features collaboratively. It supports multi-file refactoring with full dependency tracking and offers advanced context awareness of project structure and patterns.

The platform uses a structured Spec Coding approach where users first write a project brief, define user experience, specify design requirements, and then AI generates the corresponding code. This method ensures AI understands precisely what to build rather than guessing from vague instructions.

Benefits include faster development with fewer iterations, predictable changes when updating specifications, reduced risk by validating ideas upfront, and better architecture leading to more maintainable code. Users can build analytics dashboards, e-commerce sites, internal tools, and various web applications.

Capacity targets users building startups, consumer apps, websites, e-commerce platforms, internal tools, and B2B SaaS applications. The platform integrates with deployment services like Vercel and AWS.