
Build full-stack web apps with AI — describe it, ship it
Capacity is an AI-powered platform for building full-stack web applications without coding expertise. Describe your app idea in natural language and Capacity generates production-ready code with React/TypeScript frontends, Express backends, and SQLite databases. Choose between quick prototyping (Vibe Mode) or detailed specification-first development (Spec Mode).
Quick prototyping — describe your idea and get a working app in minutes through natural language.
Detailed planning-first approach with structured project briefs, UX flows, and user stories before code generation.
Generates React/TypeScript frontends with Express backends and SQLite databases automatically.
Strategic AI assistant that provides guidance, code suggestions, and architectural advice throughout development.
Export your code to GitHub or download directly — no vendor lock-in, you own everything.
Publish your app to a live URL with custom domain support in a single click.
AI creates consistent design systems with components, colors, and typography for your app.
Go from idea to working prototype in hours, not weeks — perfect for validating startup concepts.
Build custom dashboards, admin panels, and workflow tools for your team without hiring developers.
Non-technical founders can build and launch web apps independently with AI as their technical co-founder.
Create clickable, functional prototypes to present to stakeholders or investors before committing to full development.

AI-powered automation orchestration and optimization platform