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LLM application frameworks · MIT (open source) · 39,632 stars

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An open-source engine that turns continuous content streams into search and monitoring. Durable ingestion, hybrid search, alerts, and plugins for formats, models and business rules.

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Project	License	Stars	Per week	Latest release
DifyBuild Agentic workflows, RAG pipelines, with rich AI model and tool support on one collaborative workspace.LangGeniusDify Open Source License (Apache 2.0 with multi-tenant SaaS and logo restrictions)	Dify Open Source License (Apache 2.0 with multi-tenant SaaS and logo restrictions)changed Jul 2023	161k	+524	1.17.1Sep 10, 2026
Open WebUIUser-friendly AI Interface (Supports Ollama, OpenAI API,...).Open WebUIOpen WebUI License (BSD-3-Clause plus branding-preservation clause)	Open WebUI License (BSD-3-Clause plus branding-preservation clause)changed Apr 2025	158k	+753	-
langflowLangflow is a powerful tool for building and deploying AI-powered agents and workflows.MIT	MIT	156k	+171	-
LangChainThe agent engineering platform.LangChainMIT	MIT	149k	+308	langchain-core==1.6.5Sep 24, 2026
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deer-flowAn open-source long-horizon SuperAgent harness that researches, codes, and creates.MIT	MIT	85.2k	+321	-
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mem0The Memory Layer for AI Agents - Drop-in memory infrastructure for AI agents and apps.Apache 2.0	Apache 2.0	68.3k	+383	-