Top Vector Database repositories

Biggest movers this week

git clone https://github.com/neuml/txtai.git

git clone https://github.com/lancedb/lancedb.git

git clone https://github.com/genkit-ai/genkit.git

git clone https://github.com/paradedb/paradedb.git

git clone https://github.com/vespa-engine/vespa.git

git clone https://github.com/HelixDB/helix-db.git

Top 30 on the Elo ladder

1. #307
   volcengine/OpenViking

   Self-evolving Context Database for AI Agents. Unify Agent Memory, Knowledge RAG and Skills.

   • Diamond II

   2,061 Elo +942.2kPython
2. #348
   Mintplex-Labs/anything-llm

   Stop renting your intelligence. Own it with AnythingLLM. Everything you need for a powerful local-first agent…

   • Diamond III

   2,040 Elo −2968.3kJavaScript
3. #632
   VectifyAI/PageIndex

   📑 PageIndex: Document Index for Vectorless, Reasoning-based RAG

   • Diamond V

   1,932 Elo −2340.4kPython
4. #640
   topoteretes/cognee

   Cognee is the open-source AI memory platform for agents. Give your AI agents persistent long-term memory with small…

   • Diamond V

   1,930 Elo +1033.3kPython
5. #691
   run-llama/llama_index

   LlamaIndex is the document processing platform for AI

   • Diamond V

   1,919 Elo −3352.9kPython
6. #897
   qdrant/qdrant

   Vector database and similarity search engine for embeddings, written in Rust.

   • Emerald I

   1,875 Elo −2335.5kRust
7. #1,023
   meilisearch/meilisearch

   Lightning-fast, typo-tolerant search engine behind a RESTful API.

   • Emerald II

   1,852 Elo −2859.8kRust
8. #1,127
   NirDiamant/RAG_Techniques

   This repository showcases various advanced techniques for Retrieval-Augmented Generation (RAG) systems. Each technique…

   • Emerald III

   1,837 Elo −4730.3kJupyter Notebook
9. #1,161
   milvus-io/milvus

   Milvus is a high-performance, cloud-native vector database built for scalable vector ANN search

   • Emerald III

   1,832 Elo −1546.6kGo
10. #1,779
    neuml/txtai

    💡 All-in-one AI framework for semantic search, LLM orchestration and language model workflows

    • Platinum I

    1,752 Elo +17013.4kPython
11. #2,402
    langchain4j/langchain4j

    LangChain4j is an idiomatic, open-source Java library for building LLM-powered applications on the JVM. It offers a…

    • Platinum III

    1,685 Elo +1213.4kJava
12. #2,798
    lancedb/lancedb

    Developer-friendly OSS embedded retrieval library for multimodal AI. Search More; Manage Less.

    • Platinum IV

    1,652 Elo +5111.9kRust
13. #2,800
    alibaba/zvec

    A lightweight, lightning-fast, in-process vector database

    • Platinum IV

    1,652 Elo +716.2kC++
14. #2,817
    memvid/memvid

    Memory layer for AI Agents. Replace complex RAG pipelines with a serverless, single-file memory layer. Give your agents…

    • Platinum IV

    1,651 Elo 17.4kRust
15. #2,915
    MariaDB/server

    MariaDB server is a community developed fork of MySQL server. Started by core members of the original MySQL team…

    • Platinum V

    1,643 Elo +298.5kC++
16. #3,041
    pathwaycom/serviette

    A no-code RAG server that keeps answers in sync with your documents. Works with 8 vector databases. Built on Pathway.

    • Platinum V

    1,633 Elo −3658.7kPython
17. #3,655
    StarTrail-org/LEANN

    [MLsys2026 Best Paper]: https://arxiv.org/abs/2506.08276. RAG on Everything with LEANN. Enjoy 97% storage savings while…

    • Gold II

    1,595 Elo −2813.7kPython
18. #4,001
    weaviate/weaviate

    Weaviate is an open-source vector database that stores both objects and vectors, allowing for the combination of vector…

    • Gold III

    1,573 Elo −2916.9kGo
19. #4,650
    zilliztech/claude-context

    Code search MCP for Claude Code. Make entire codebase the context for any coding agent.

    • Gold V

    1,537 Elo +712.6kTypeScript
20. #4,860
    oceanbase/oceanbase

    OceanBase is the unified distributed database for the AI era — open-source, multi-model, one engine for your most…

    • Gold V

    1,526 Elo +1810.4kC++
21. #5,068
    paradedb/paradedb

    One Postgres for your application data, full-text search, vector retrieval, and aggregations. Home of the pg_search…

    • Silver I

    1,516 Elo +349.5kRust
22. #6,345
    zilliztech/deep-searcher

    Open Source Deep Research Alternative to Reason and Search on Private Data. Written in Python.

    • Silver IV

    1,458 Elo −58.3kPython
23. #6,393
    genkit-ai/genkit

    Open-source framework for building agentic apps in JavaScript, Go, Dart, and Python, built and used in production by…

    • Silver IV

    1,457 Elo +516.5kTypeScript
24. #7,084
    vespa-engine/vespa

    The AI search platform

    • Bronze I

    1,430 Elo +337.1kJava
25. #7,327
    databendlabs/databend

    Data Agent Ready Warehouse : One for Analytics, Search, AI, Python Sandbox. — rebuilt from scratch. Unified…

    • Bronze I

    1,420 Elo −99.4kRust
26. #7,384
    oramasearch/orama

    🌌 A complete search engine and RAG pipeline in your browser, server or edge network with support for full-text…

    • Bronze I

    1,418 Elo −2310.6kTypeScript
27. #7,842
    activeloopai/deeplake

    Deeplake is AI Data Runtime for Agents. It provides serverless postgres with a multimodal datalake, enabling scalable…

    • Bronze III

    1,402 Elo +149.2kC++
28. #8,454
    HelixDB/helix-db

    HelixDB is an OLTP graph database with native vector and full-text search built in Rust on Object Storage.

    • Bronze IV

    1,377 Elo +316.2kRust
29. #9,007
    reorproject/reor

    Private & local AI personal knowledge management app for high entropy people.

    • Copper I

    1,350 Elo −128.5kJavaScript
30. #9,637
    postgresml/postgresml

    Postgres with GPUs for ML/AI apps.

    • Copper III

    1,303 Elo −196.8kRust