vector-search — open-source software health

Go · PyPI

99Exceptionalhealth index

Weaviate 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.

Go★ 16.7KAug 5, 2026

BSD-3-ClauseAug 5, 2026 · metrics 2.10.0

PyPI · npm

98Exceptionalhealth index

voxel51/fiftyone

Refine high-quality datasets and visual AI models

TypeScript · Python★ 11KAug 12, 2026

Apache-2.0Aug 12, 2026 · metrics 2.10.0

97Exceptionalhealth index

milvus-io/milvus

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

Go · C++ · Python★ 45.5KAug 5, 2026

Apache-2.0Aug 5, 2026 · metrics 2.10.0

PyPI · crates.io

97Exceptionalhealth index

nuclia/nucliadb

NucliaDB, The AI Search database for RAG

Python · Rust★ 718↓ 71.5K/moJul 22, 2026

Custom licenseJul 22, 2026 · metrics 2.10.0

PyPI · Go · npm

97Exceptionalhealth index

onyx-dot-app/onyx

Open Source AI Platform - AI Chat with advanced features that works with every LLM

Python · TypeScript★ 31.4K↓ 5,015/moAug 5, 2026

Custom licenseAug 5, 2026 · metrics 2.10.0

NuGet

97Exceptionalhealth index

ravendb/ravendb

ACID Document Database

C# · TypeScript★ 3,995Sep 1, 2026

Custom licenseSep 1, 2026 · metrics 2.10.0

PyPI

97Exceptionalhealth index

redis/redis-vl-python

Redis Vector Library (RedisVL) -- the AI-native Python client for Redis.

Python★ 424↓ 2.8M/moAug 27, 2026

MITAug 27, 2026 · metrics 2.10.0

Maven · RubyGems

97Exceptionalhealth index

vespa-engine/vespa

The AI search platform

Java · C++★ 7,072Aug 28, 2026

Apache-2.0Aug 28, 2026 · metrics 2.10.0

PyPI

96Exceptionalhealth index

NVIDIA/raft

RAFT contains fundamental widely-used algorithms and primitives for machine learning and information retrieval. The algorithms are CUDA-accelerated and form building blocks for more easily writing high performance applications.

Cuda · C++ · Jupyter Notebook★ 1,035Aug 6, 2026

Apache-2.0Aug 6, 2026 · metrics 2.10.0

crates.io

96Exceptionalhealth index

meilisearch/meilisearch

A lightning-fast search engine API bringing AI-powered hybrid search to your sites and applications.

Rust★ 58.9KAug 4, 2026

Custom licenseAug 4, 2026 · metrics 2.10.0

crates.io

96Exceptionalhealth index

paradedb/paradedb

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

Rust · PLpgSQL★ 9,204Aug 28, 2026

AGPL-3.0Aug 28, 2026 · metrics 2.10.0

Go · PyPI · npm

95Exceptionalhealth index

Tencent/WeKnora

Open-source LLM knowledge platform: turn raw documents into a queryable RAG, an autonomous reasoning agent, and a self-maintaining Wiki.

Go · Vue · TypeScript★ 19.4KAug 5, 2026

Custom licenseAug 5, 2026 · metrics 2.10.0

Maven · Go · npm +1

94Exceptionalhealth index

ArcadeData/arcadedb

ArcadeDB Multi-Model Database, one DBMS that supports SQL, Cypher, Gremlin, HTTP/JSON, MongoDB and Redis. ArcadeDB is a conceptual fork of OrientDB, the first Multi-Model DBMS. ArcadeDB supports Vector Embeddings.

Java★ 1,047Jul 29, 2026

Apache-2.0Jul 29, 2026 · metrics 2.10.0

PyPI · Go · npm

94Exceptionalhealth index

infiniflow/infinity

The AI-native database built for LLM applications, providing incredibly fast hybrid search of dense vector, sparse vector, tensor (multi-vector), and full-text.

C++★ 4,684Aug 28, 2026

Apache-2.0Aug 28, 2026 · metrics 2.10.0

npm · crates.io

93Exceptionalhealth index

ruvnet/RuVector

RuVector is a High Performance, Real-Time, Self-Learning Ai, Vector GNN, Memory DB built in Rust.

Rust · TypeScript★ 4,441↓ 432.2K/moAug 22, 2026

MITAug 22, 2026 · metrics 2.10.0

PyPI

93Exceptionalhealth index

weaviate/weaviate-python-client

A python native client for easy interaction with a Weaviate instance.

Python★ 226Jul 18, 2026

BSD-3-ClauseJul 18, 2026 · metrics 2.10.0

PyPI

92Excellenthealth index

redis/redis

For developers, who are building real-time data-driven applications, Redis is the preferred, fastest, and most feature-rich cache, data structure server, and document and vector query engine.

C · Tcl★ 75.9KAug 4, 2026

Custom licenseAug 4, 2026 · metrics 2.10.0

PyPI

91Excellenthealth index

qdrant/fastembed

Fast, Accurate, Lightweight Python library to make State of the Art Embedding

Python · Jupyter Notebook★ 3,092Jul 18, 2026

Apache-2.0Jul 18, 2026 · metrics 2.10.0

crates.io · npm · Go +2

91Excellenthealth index

unum-cloud/USearch

Fast Open-Source Search & Clustering engine × for Vectors & Arbitrary Objects × in C++, C, Python, JavaScript, Rust, Java, Objective-C, Swift, C#, GoLang, and Wolfram 🔍

C++ · Python★ 4,270↓ 247.4K/moAug 22, 2026

Apache-2.0Aug 22, 2026 · metrics 2.10.0

PyPI · crates.io

90Excellenthealth index

pinecone-io/python-sdk

Official Python SDK for the Pinecone vector database

Python★ 449↓ 7M/moAug 27, 2026

Apache-2.0Aug 27, 2026 · metrics 2.10.0

crates.io · PyPI

90Excellenthealth index

qdrant/qdrant

Qdrant - 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/

Rust★ 33.8K↓ 83/moAug 5, 2026

Apache-2.0Aug 5, 2026 · metrics 2.10.0

PyPI · npm

89Excellenthealth index

cdeust/Cortex

Cross-platform persistent memory MCP for Codex, Gemini CLI, Claude Code, and other local MCP hosts. 36 cited neuroscience mechanisms, local-first SQLite/PostgreSQL, hybrid retrieval, decay-based consolidation, and reproducible benchmarks. Claude adds optional automatic lifecycle hooks.

Python★ 71↓ 2,447/moSep 5, 2026

MITSep 5, 2026 · metrics 2.10.0

PyPI

89Excellenthealth index

qdrant/qdrant-client

Python client for Qdrant vector search engine

Python★ 1,350↓ 24M/moAug 27, 2026

Apache-2.0Aug 27, 2026 · metrics 2.10.0

npm

89Excellenthealth index

weaviate/typescript-client

Official Weaviate TypeScript Client

TypeScript★ 101↓ 1.4M/moJul 22, 2026

BSD-3-ClauseJul 22, 2026 · metrics 2.10.0

PyPI · crates.io

88Excellenthealth index

RyanCodrai/turbovec

A vector index built on TurboQuant, written in Rust with Python bindings

Rust · Python★ 16.2K↓ 76K/moAug 23, 2026

MITAug 23, 2026 · metrics 2.10.0

crates.io

88Excellenthealth index

qdrant/rust-client

Rust client for Qdrant vector search engine

Rust★ 413↓ 298.1K/moAug 6, 2026

Apache-2.0Aug 6, 2026 · metrics 2.10.0

npm · PyPI · RubyGems

87Excellenthealth index

BetterDB-inc/monitor

Real-time monitoring, slowlog analysis, and audit trails for Valkey and Redis

TypeScript · Python★ 1,299↓ 3,994/moSep 5, 2026

Custom licenseSep 5, 2026 · metrics 2.10.0

npm · PyPI

87Excellenthealth index

airweave-ai/airweave

Open-source context retrieval layer for AI agents

Python · TypeScript★ 6,567↓ 6,678/moAug 28, 2026

MITAug 28, 2026 · metrics 2.10.0

npm

86Excellenthealth index

eric-cielo/moflo

MoFlo — an opinionated, local-first AI agent orchestration toolkit for Claude Code: semantic memory, learned routing, gates, and spells. No API keys, no cloud, works out of the box.

TypeScript · JavaScript★ 18↓ 8,525/moSep 6, 2026

MITSep 6, 2026 · metrics 2.10.0

crates.io

84Excellenthealth index

Anush008/fastembed-rs

Rust library for generating vector embeddings, reranking locally!

Rust★ 963↓ 416.6K/moJul 17, 2026

Apache-2.0Jul 17, 2026 · metrics 2.10.0

#vector-search