Cofounder

Cofounder is an experimental AI framework for generating full-stack web applications. Given a description of what to build, it aims to produce not just a front end but a working backend, database schema and stateful web app, pairing an AI-guided mockup designer with a modular design system to create a generative UI rooted in the app's own architecture.

The stack it generates targets TypeScript and JavaScript with React, Tailwind CSS, Vite and PostgreSQL. The README is unusually blunt about the project's maturity: it is an early, unstable preview release that is expected to break often and consumes a large number of AI tokens, and the maintainers explicitly tell most potential users to wait for a version 1 release rather than try the current code.

Cofounder is released under the MIT license and is run locally or self-hosted, calling out to an AI provider such as OpenAI for generation, so API usage is billed separately by that provider. It is best suited to developers comfortable with experimental, work-in-progress open-source tools.