LightRAG is listed under Agent Memory & RAG-as-a-Service, in the AI Agents & Automation category on Flocci AI Tools. Simple, fast graph-based RAG from HKU Data Science lab (EMNLP 2025). It is free, with no paid plan attached, and it lives at github.com.
LightRAG is listed as fully free — there is no paid tier attached to it in the catalog. That makes it one of the 397 entries on Flocci AI Tools with no upgrade path built in.
LightRAG needs to be installed or self-hosted — it doesn't run in a browser tab. It is available on self-hosting and the command line.
LightRAG does 3 things the catalog singles out: Simple, fast graph-based rag from hku data science lab (emnlp 2025); combines knowledge-graph and vector retrieval; works with local or hosted llms.
MemOS is the closest free alternative: it sits in the same Agent Memory & RAG-as-a-Service sub-category and is free. RAGFlow, Basic Memory and Cognee also start free. The full list is on the alternatives page.
See the full list →