Best Vector Databases GitHub Repositories

AI-native HTAP database with Git-for-Data and built-in vector search, serving as the data and memory backbone for intelligent agents and applications.

Open-source persistent memory for AI agent pipelines (LangGraph, CrewAI, AutoGen) and Claude. REST API + knowledge graph + autonomous consolidation.

Apache Auron(Incubating) is an accelerator for big data engines, leveraging native vectorized execution to accelerate query processing.

"Small vector" optimization for Rust: store up to a small number of items on the stack

LLPhant - A comprehensive PHP Generative AI Framework using OpenAI GPT 4. Inspired by Langchain

The backend agents build with - Multimodal database, orchestration, and serving in one file

Infinispan is an open source data grid platform and highly scalable NoSQL cloud data store.

A Swift SDK for Supabase. Query your Supabase database, subscribe to realtime events, upload and download files, browse Swift examples, invoke postgres functions via rpc, invoke supabase edge functions, query pgvector.

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.

ID-based RAG FastAPI: Integration with Langchain and PostgreSQL/pgvector

SVG/XML to Compose ImageVector: IntelliJ IDEA / Android Studio plugin + build-in previewer without compilation, CLI tool, Gradle plugin

Nornicdb is a distributed low-latency, Graph+Vector, Temporal MVCC with all sub-ms HNSW search, graph traversal, and writes. Using Neo4j Bolt/Cypher and qdrant's gRPC means you can switch with no changes while adding intelligent features like schemas, managed embeddings, reranking+llm, GPU accel, Auto-TLP, Policy-based Memory Decay, and MCP server.

OpenSwarm — Autonomous AI dev team orchestrator powered by Claude Code CLI. Discord control, Linear integration, cognitive memory.

Shared Single-file memory layer for all your agents, sub mili-second RAG over text, photo and video on Apple Silicon.. No Server. No API. One File. Pure Swift

Add interactive vector tile maps to your Compose app

vsag is a vector indexing library used for similarity search.

Self-hosted geospatial data catalog with semantic search (pgvector), OGC/STAC APIs, and map builder. Built on FastAPI, PostGIS, React, and MapLibre.

Native macOS semantic search over your local files - text, images, audio, video in one vector space, on-device on Apple silicon.

Geomerative is a library for Processing. It extends 2D geometry operations to facilitate generative geometry. Includes a TrueType font and an SVG interpreters. This library exposes the shapes (such as vector drawings or typographies) in a more approchable way. Geomerative makes it easy to access the contours, the control points and the curve points, making it easy to develop generative typography and geometry pieces in Processing.

Cross-platform GPU rendering, composition, vector, text, compute, and DirectX/LibreWPF/WinUI/Avalonia interop on WebGPU and Silk.NET.