GitHub - open-puffer: opensource and fastest vectorDB
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HelixDB is an open-source graph-vector database built in Rust using LMDB for storage.
It supports graph traversals, vector search, KV, documents, and relational data in one platform for AI, agents, and RAG applications. Key features include type-safe HelixQL queries, built-in embeddings, low-latency performance, and CLI tools for local deployment with TypeScript and Python SDKs.