Capacity
Capacity transforms ideas into production-ready full-stack web apps with AI-powered specification-first development.
About Capacity
Capacity revolutionizes web app development by prioritizing structured specifications over vague prompts. Its Spec Coding methodology guides users through a clear brief, UX, and design phase before AI generates code, ensuring the final product aligns with your vision rather than relying on guesswork. This specification-first approach reduces iteration cycles and produces more reliable results from the outset.
The AI Cofounder workspace acts as a collaborative partner throughout your development journey. It helps brainstorm ideas, refine concepts, and break them down into scoped features and actionable coding tasks. This keeps your product vision coherent while maintaining realistic implementation timelines, making it ideal for entrepreneurs and product teams who need strategic guidance alongside technical execution.
Capacity's true agentic coding engine understands your entire project context and codebase. Multi-file refactors, dependency tracking, and automatic error correction across files mean you spend less time debugging and more time building. The platform generates complete full-stack applications with database backends, authentication, file storage, and real-time updates powered by Supabase, covering both frontend and backend in a production-ready configuration.
Flexibility defines Capacity's approach to scaling. The credit-based system lets you adjust usage based on task complexity—run quick prototypes or tackle enterprise projects without switching tools. Export your complete codebase anytime, connect to GitHub for version control, or let Capacity handle hosting through its managed infrastructure. This blend of autonomy and convenience accommodates teams at any stage of growth.
Features
- Spec Coding methodology: Structured, specification‑first flow (brief, UX, design) so AI generates code that follows clearly defined requirements instead of guessing from vague prompts.
- AI Cofounder workspace: An AI “cofounder” that helps brainstorm ideas, refine concepts, and translate them into scoped features and coding tasks, keeping product vision and implementation aligned.
- True agentic coding: Project‑aware AI agents that understand the codebase, support multi‑file refactors with dependency tracking, and automatically fix many errors and bugs across files.
- Full‑stack generation: Builds database‑backed apps with auth, storage, and real‑time updates on top of Supabase, along with frontend and backend code in a production‑ready stack.
- Credit‑based workflow: Every interaction with the AI uses credits based on task complexity, which lets users scale usage from quick tests to large projects without changing tools.
- Code export and hosting: Users can export the entire codebase, connect GitHub, and still rely on Capacity’s managed hosting when they do not want to run infrastructure themselves.
Pros
Cons
Capacity Pricing Plans
Starter
$25 per month
Growth
$69 per month
Professional
$129 per month
Business
$299 per month
Mini Pack
$9