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Lowdefy

Config-first web stack for AI and humans.

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Lowdefy is an open-source framework for building full-stack web apps from YAML or JSON configuration, positioned as a layer between code and natural language. It addresses the difficulty of reviewing and maintaining large volumes of AI-generated code by producing schema-validated config that can be scanned and reviewed quickly, with auth, permissions, and data validation handled by the runtime.

Built on Next.js and Auth.js, Lowdefy offers 70+ UI components, 50+ logic operators, events and actions, and role-based access control. It connects to MongoDB, PostgreSQL, MySQL, Google Sheets, REST APIs, Elasticsearch, AWS S3, SendGrid, MS SQL, SQLite, and Stripe, and supports deployment anywhere with Git version control. A plugin ecosystem extends its capabilities, with plugins for internal tools, admin panels, customer portals, multi-step forms, BI dashboards, approval workflows, and inventory management.

Lowdefy is aimed at developers and teams building internal tools, admin panels, client portals, and dashboards, from solo developers to enterprise teams. It is open source under the Apache 2.0 license and can be started locally via npm.

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