GitHub stars · StarDay

1VectifyAI / PageIndex📑 PageIndex: Document Index for Vectorless, Reasoning-based RAGPythonMIT · Permissive40,081

2qdrant / qdrantQdrant - High-performance, massive-scale Vector Database and Vector Search Engine for the next generation of AI. Also available in the cloud https://cloud.qdrant.io/RustApache-2.0 · Permissive35,447

3topoteretes / cogneeCognee is the open-source AI memory platform for agents. Give your AI agents persistent long-term memory with small models for freePythonApache-2.0 · Permissive33,109

4NirDiamant / RAG_TechniquesThis repository showcases various advanced techniques for Retrieval-Augmented Generation (RAG) systems. Each technique has a detailed notebook tutorial.Jupyter NotebookLicense not declared30,197

5weaviate / weaviateWeaviate is an open-source vector database that stores both objects and vectors, allowing for the combination of vector search with structured filtering with the fault tolerance and scalability of a cloud-native database.GoLicense not declared16,940

6alibaba / zvecA lightweight, lightning-fast, in-process vector databaseC++Apache-2.0 · Permissive16,202

7StarTrail-org / LEANNAuthor description: [MLsys2026 Best Paper]: https://arxiv.org/abs/2506.08276. RAG on Everything with LEANN. Enjoy 97% storage savings while running a fast, accurate, and 100% private RAG application on your personal device.PythonMIT · Permissive13,756

8langchain4j / langchain4jLangChain4j is an idiomatic, open-source Java library for building LLM-powered applications on the JVM. It offers a unified API over popular LLM providers and vector stores, and makes implementing tool calling (including MCP support), agents and RAG easy. It integrates seamlessly with enterprise Java frameworks like Quarkus and Spring Boot.JavaApache-2.0 · Permissive13,363

9neuml / txtai💡 All-in-one AI framework for semantic search, LLM orchestration and language model workflowsPythonApache-2.0 · Permissive13,062

10zilliztech / claude-contextCode search MCP for Claude Code. Make entire codebase the context for any coding agent.TypeScriptMIT · Permissive12,674

11lancedb / lancedbDeveloper-friendly OSS embedded retrieval library for multimodal AI. Search More; Manage Less.RustApache-2.0 · Permissive11,831

12oramasearch / orama🌌 A complete search engine and RAG pipeline in your browser, server or edge network with support for full-text, vector, and hybrid search in less than 2kb.TypeScriptLicense not declared10,602

13oceanbase / oceanbaseOceanBase is the unified distributed database for the AI era — open-source, multi-model, one engine for your most demanding workloads.C++Apache-2.0 · Permissive10,366

14paradedb / paradedbOne Postgres for your application data, full-text search, vector retrieval, and aggregations. Home of the pg_search extension.RustAGPL-3.0 · Share derivative source9,495

15databendlabs / databendData Agent Ready Warehouse : One for Analytics, Search, AI, Python Sandbox. — rebuilt from scratch. Unified architecture on your S3.RustApache-2.0 · Permissive9,490

16activeloopai / deeplakeDeeplake is AI Data Runtime for Agents. It provides serverless postgres with a multimodal datalake, enabling scalable retrieval and training.C++Apache-2.0 · Permissive9,264

17MariaDB / serverMariaDB server is a community developed fork of MySQL server. Started by core members of the original MySQL team, MariaDB actively works with outside developers to deliver the most featureful, stable, and sanely licensed open SQL server in the industry.C++GPL-2.0 · Share derivative source8,542

18zilliztech / deep-searcherOpen Source Deep Research Alternative to Reason and Search on Private Data. Written in Python.PythonApache-2.0 · Permissive8,384

19vespa-engine / vespaThe AI search platformJavaApache-2.0 · Permissive7,163

20postgresml / postgresmlPostgres with GPUs for ML/AI apps.RustMIT · Permissive6,829