Vector Database GitHub Repositories (2026) · Open Source Tools

Embedded retrieval library built on Parquet. Fast, efficient, and scalable.

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.

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

Context intelligence layer for LLM agents: persistent memory with write-time dedup, sensitivity tagging, conflict detection, and hierarchical decay. ~12ms. No LLM calls. MIT.

The AI search platform

A fast, multi-threaded Redis® and Valkey alternative written in Rust: drop-in compatible, with full-text and vector search built in

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

SeekStorm: vector & lexical search - in-process library & multi-tenancy server, in Rust.

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

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

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

Self-hosted AI gateway for private RAG, natural-language data access, and tool-calling agents.

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

CrateDB is a distributed and scalable SQL database for storing and analyzing massive amounts of data in near real-time, even with complex queries. It is PostgreSQL-compatible, and based on Lucene.

Curated list of self-hosted open-source AI: local LLMs, chat UIs, agents, MCP servers, RAG, speech and image generation. Health-checked weekly, dead projects removed automatically.

Agentic Voice Notes for iPhone and macOS - Rust, Dioxus, LanceDB + RIG + SQLite

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

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

Apache Pinot: a real-time analytics database for low-latency SQL and vector search, serving user-facing and agent-facing applications

Local persistent memory store for LLM applications including claude desktop, github copilot, codex, antigravity, etc.