Dyad is an open-source AI application builder that allows anyone to create full-stack web applications without writing code, simply by describing their desired app in natural language. The platform leverages AI to translate user descriptions into complete, functioning applications with front-end, back-end, and database components while keeping all data entirely local on the user's computer for maximum privacy. Unlike cloud-based alternatives, Dyad gives users complete ownership of their generated code with no vendor lock-in, supports integration with any AI model (including local options via Ollama or API-based services like OpenAI and Anthropic), and enables rapid development cycles with instant previews. Whether you're a non-technical entrepreneur looking to build a prototype, a student learning development concepts, or a professional developer accelerating your workflow, Dyad provides a free, privacy-focused solution that transforms natural language descriptions into deployable applications in minutes.