Dyad is a local-first, open-source platform that lets you build full-stack applications directly on your machine. A free AI app builder makes it easy to integrate AI models such as GPT-4 or Gemini 2.5 Pro using your own API keys, ensuring privacy and full control over your project. Dyad is great for developing internal tools, prototypes, or MVPs, and it even supports backend integrations like Supabase, giving developers flexibility and efficiency while bringing their ideas to life.