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Open Source Projects tagged "Vector Database"

A curated collection of the best open source projects tagged "Vector Database". Each listing includes a website screenshot along with a detailed review of its features.

Mem0

AI
Persistent memory layer for AI agents and apps

  • Stars

    68,474

  • Last commit

    2 days ago

  • License

    Apache-2.0
Adds persistent, searchable memory to AI agents and apps, so they remember user preferences and past interactions across sessions without pipeline changes.

Open Source Alternative to:

Supermemory

AnythingLLM

AI
Chat with your documents using any LLM, fully private

  • Stars

    67,975

  • Last commit

    1 day ago

  • License

    MIT
A desktop and self-hostable AI app for chatting with documents, running local LLMs, and using AI agents without writing code or creating an account.

Open Source Alternative to:

Claude

Meilisearch

Lightning-fast search for your applications

  • Stars

    59,793

  • Last commit

    21 hours ago

  • License

    MIT
A powerful, fast, and easy-to-use search engine that delivers instant and relevant results for your websites and applications.

Open Source Alternative to:

ElasticSearch

Milvus

AI
High-performance vector database for GenAI applications

  • Stars

    46,603

  • Last commit

    17 hours ago

  • License

    Apache-2.0
Open-source vector database optimized for similarity search, scaling to billions of vectors with minimal performance loss

Open Source Alternative to:

Supabase

Qdrant

AI
Fast, scalable vector database for AI applications

  • Stars

    35,440

  • Last commit

    13 hours ago

  • License

    Apache-2.0
Qdrant is an open-source vector database that provides high-performance similarity search for AI and machine learning applications.

Open Source Alternative to:

Supabase

Chroma

AI
Open-source vector database for AI search and retrieval

  • Stars

    29,646

  • Last commit

    6 days ago

  • License

    Apache-2.0
Open-source vector database designed for AI applications. Store, search, and retrieve embeddings with semantic similarity matching and metadata filtering.

Open Source Alternative to:

Supabase

Weaviate

AI
AI-native vector database for intuitive applications

  • Stars

    16,939

  • Last commit

    12 hours ago

  • License

    BSD-3-Clause
Open-source vector database designed for building powerful, production-ready AI applications with hybrid search capabilities and flexible deployment options.

Open Source Alternative to:

Supabase

OceanBase

High-performance distributed database for all workloads

  • Stars

    10,365

  • Last commit

    1 day ago

  • License

    Apache-2.0
Scalable, high-availability database system supporting OLTP, OLAP, and hybrid transactional/analytical processing workloads.

Open Source Alternative to:

MongoDB

Orama

AI
Full-text & vector search at the edge.

  • Stars

    10,600

  • Last commit

    19 days ago

  • License

    Unknown
Blend full-text and semantic search for unlimited queries across 300 global locations. Get precise answers and matches at a flat rate, no matter your search volume.

Open Source Alternative to:

ElasticSearch

Databend

Cloud-native data warehouse for lightning-fast analytics

  • Stars

    9,491

  • Last commit

    13 hours ago

  • License

    Apache-2.0
Databend is an open-source, elastic cloud data warehouse built for high-performance analytics and seamless integration with popular data tools.

Open Source Alternative to:

Snowflake

HelixDB

AI
Unify vector search and graph traversals in one database

  • Stars

    6,268

  • Last commit

    12 hours ago

  • License

    Apache-2.0
Rust-built native graph-vector database combining vector similarity search and graph traversals. 10x faster development with unified architecture, sub-1ms queries.

Open Source Alternative to:

Supabase

Activeloop

AI
The tensor database for AI data

  • Stars

    9,264

  • Last commit

    6 months ago

  • License

    Apache-2.0
Deep Lake is an open-source database for storing, querying and managing complex AI data like images, audio, and embeddings.

Open Source Alternative to:

MongoDB

Apache Pinot

Distributed OLAP database for real-time analytics at scale

  • Stars

    6,173

  • Last commit

    12 hours ago

  • License

    Apache-2.0
Sub-second SQL queries on fresh streaming data at petabyte scale, built for high-concurrency user-facing apps and AI agent backends.

Open Source Alternative to:

Splunk

CrateDB

Scalable SQL database for real-time analytics

  • Stars

    4,449

  • Last commit

    13 hours ago

  • License

    Apache-2.0
Distributed SQL database designed for high-speed ingestion and complex queries on massive datasets, ideal for IoT and time-series data.

Open Source Alternative to:

Snowflake

SeekStorm

Full-text search API with real-time indexing and crawling

  • Stars

    1,935

  • Last commit

    5 days ago

  • License

    Apache-2.0
Cloud search API and crawler service supporting billions of documents, real-time indexing, autocomplete, faceted filtering, and multi-language text across any application.

Open Source Alternative to:

ElasticSearch
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