Dify.ai

Dify provides a platform for constructing, testing, and deploying applications that use large language models (LLMs). It lets developers define autonomous agents and retrieval‑augmented generation (RAG) pipelines through a visual workflow interface, then run those workflows in production environments. The system supports both cloud hosting and self‑hosting, offering a free tier and an open‑source code base under the Apache‑2.0 license, with no subscription requirement.

The tool is aimed at engineers and product teams that need to integrate LLM capabilities into their services without building the surrounding infrastructure from scratch. By exposing a graphical builder and API endpoints, it simplifies the creation of complex prompt logic, data retrieval steps, and response handling, making it easier to iterate on and monitor model‑driven features.

What distinguishes Dify is its focus on “agentic” workflows that can operate autonomously, combined with a self‑hostable, libre‑source implementation that can be run on‑premise. The project includes extensive documentation, multilingual README files, and community channels for support, and it tracks health and contribution metrics through the Linux Foundation’s LFX platform.