Lowdefy Review: Building Internal Tools and AI Agents in YAML

If you have ever spent two days wiring up a React admin panel so your ops team can edit a database table, you already know the problem Lowdefy is trying to solve. The framework lets you describe a web app entirely in YAML — pages, data connections, UI blocks, auth rules — and the runtime turns that config into a working Next.js app. No JSX, no component trees, no Webpack config. Version 5.3, released in May 2026, added AI-agent flows to that same model, so you can drop a streaming chat interface...