Open source langgraph projects
Every project in the registry tagged langgraph, ranked by real GitHub adoption.
The agent engineering platform.
Build resilient agents.
Privacy-first knowledge base with any AI model you choose
可私有部署的多租户知识智能体平台：统一 RAG、知识图谱、多智能体、MCP/Skills、沙盒与权限管理。Self-hosted knowledge agent platform for RAG, knowledge graphs and multi-agent workflows.
Enterprise workplace AI with data you own and control
Open-source AI-powered Security Operations Center — alert fusion, purple-team drills, agent-assisted triage, MITRE ATT&CK investigation. MIT-licensed, self-host
🤖 AI-powered web scraping editor with visual workflow builder. Build, test & deploy web scrapers using natural language. Powered by ScrapeGraphAI & LangGraph.
Open-source runtime AI agent security tool - monitors and controls AI agents, catching malicious tool use, prompt injection, and policy drift in real time, befo
Open-source AI browser for intelligent web automation
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Frequently asked questions
How many open source langgraph projects are there?
This registry tracks 9 projects tagged langgraph, with 219,523 GitHub stars between them. The most-adopted is langchain at 146,538 stars.
Are these langgraph projects free to use?
Yes — 8 of the 9 carry an explicit open-source licence across 3 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.
Which langgraph project should I choose?
The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.
Are these langgraph projects still maintained?
7 of the 9 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.