Dify.ai

Dify.ai is an open-source platform that helps developers build production-ready applications powered by large language models. It provides a visual orchestration studio where you can design AI workflows, connect to multiple LLM providers, and manage prompts without writing everything from scratch. The platform supports Retrieval-Augmented Generation (RAG) pipelines, letting you feed your own documents into the model for more accurate answers.

You can integrate with OpenAI, Anthropic, Azure, and local models via Ollama or Hugging Face. Dify offers built-in tools for logging, annotation, and performance monitoring, plus a plugin system to extend functionality. It runs on Docker for easy self-hosting or uses their cloud version. The project was started by LangGenius and has gained a strong following on GitHub with thousands of stars.

Dify is ideal for developers and teams who want to prototype AI features quickly without managing infrastructure complexity. It is free and open source under the Apache 2.0 license, with a cloud-hosted option available for those who prefer a managed service. The platform is actively maintained with frequent releases and a responsive community.