Vector Database Libraries Embedding Tools

Lightweight, embeddable vector storage libraries and tools for managing embeddings and similarity search within applications. Includes in-memory databases, chunking utilities, and retrieval implementations. Does NOT include managed cloud services, large-scale distributed databases, or production vector database platforms.

There are 93 vector database libraries tools tracked. 6 score above 50 (established tier). The highest-rated is curiosity-ai/catalyst at 64/100 with 836 stars. 2 of the top 10 are actively maintained.

Get all 93 projects as JSON

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#	Tool	Score	Tier	Stars	Language
1	curiosity-ai/catalyst 🚀 Catalyst is a C# Natural Language Processing library built for speed....	64	Established	836	C#
2	Azure/azure-search-vector-samples A repository of code samples for Vector search capabilities in Azure AI Search.	61	Established	907	Jupyter Notebook
3	supabase/embeddings-generator GitHub Action to generate embeddings from the markdown files in your repository.	59	Established	118	TypeScript
4	vector-ai/vectorai Vector AI — A platform for building vector based applications. Encode, query...	58	Established	320	Python
5	yusufhilmi/client-vector-search A client side vector search library that can embed, store, search, and cache...	54	Established	229	TypeScript
6	kelindar/search Go library for embedded vector search and semantic embeddings using llama.cpp	51	Established	528	Go
7	curiosity-ai/hnsw-sharp C# library for approximate nearest neighbors search using Hierarchical...	49	Emerging	97	C#
8	WolframResearch/wolfram-notebook-embedder JavaScript embedder for Wolfram Cloud notebooks	48	Emerging	59	JavaScript
9	wagtail/wagtail-vector-index Store Wagtail pages & Django models as embeddings in vector databases	48	Emerging	22	Python
10	curiosity-ai/umap-sharp C# library for fast embeddings projection using Uniform Manifold...	47	Emerging	50	C#
11	fogfish/word2vec Golang "native" implementation of word2vec algorithm (word2vec++ port)	42	Emerging	31	C++
12	rragundez/chunkdot Multi-threaded matrix multiplication and cosine similarity calculations for...	42	Emerging	86	Python
13	dgarnitz/vectorflow VectorFlow is a high volume vector embedding pipeline that ingests raw data,...	42	Emerging	698	Python
14	buckhx/gobert Go Bindings for BERT NLP Models	42	Emerging	107	Go
15	mariotoffia/goannoy go native port of annoy. Approximate Nearest Neighbors in optimized for...	41	Emerging	19	Go
16	themaximalist/embeddings.js Simple text embeddings library for Node.js (OpenAI, Mistral, Local)	38	Emerging	31	CSS
17	Anush008/fastembed-js Generate vector embeddings in NodeJS	38	Emerging	173	TypeScript
18	themaximalist/vectordb.js Simple in-memory vector database for text similarity in Node.js	37	Emerging	43	HTML
19	Anush008/fastembed-go Go implementation of @qdrant/fastembed.	37	Emerging	101	Go
20	Altor-lab/altor-vec Client-side vector search powered by HNSW. 54KB gzipped WASM....	36	Emerging	20	Rust
21	trinhdoduyhungss/nk-vector NK-VECTOR, a powerful Natural Language Processing (NLP) library.	36	Emerging	7	JavaScript
22	realxtefi/Iframable-Pancakeswap Iframable PancakeSwap for any Websites, Feel free to use with iframe. ...	35	Emerging	29	TypeScript
23	danieldk/go2vec Read and use word2vec vectors in Go	35	Emerging	58	Go
24	RelevanceAI/vectorhub Vector Hub - Library for easy discovery, and consumption of State-of-the-art...	35	Emerging	561	—
25	pgEdge/pgedge-vectorizer A PostgreSQL extension to create chunk tables for existing text data, and...	34	Emerging	30	C
26	basedwon/emlet An embedding engine built for the sovereign web.	34	Emerging	1	JavaScript
27	anshulsharmas/azure_kusto_vector Samples to use Kusto(Azure Data Explorer) as a Vector database for AI embeddings	32	Emerging	27	Jupyter Notebook
28	Puzer/github-repo-embeddings Self-supervised embeddings for GitHub repositories from ⭐ Stars. Includes...	32	Emerging	53	Svelte
29	postgresml/postgresml-django postgresml-django is a Python module that integrates PostgresML with Django...	31	Emerging	26	Python
30	szeyu/facevector-engine FaceVector Engine - Face recognition and vector similarity search API using...	30	Emerging	3	TypeScript
31	MauricioPerera/LOKIVECTOR LokiVector - The AI-Era Embedded Database: Document Store + Vector Search...	30	Emerging	3	JavaScript
32	grafana/vectorapi pgvector + embeddings API	29	Experimental	22	Python
33	thijse/MemoryVectorStore Sample of implementing a simple in-memory vector store	27	Experimental	9	C#
34	milosgajdos/go-embeddings Go module for fetching embeddings from embeddings providers	26	Experimental	56	Go
35	iameztoy/VectorScope VectorScope: Similarity Search with Google’s Satellite Embedding V1 empowers...	26	Experimental	3	JavaScript
36	cartersusi/go-knn k-NN Search Go pkg	25	Experimental	5	Go
37	Yukasama/vectorize This project allows to upload, train and evaluate AI models based on your...	25	Experimental	2	Python
38	Mattbusel/llm-embed Zero-dependency single-header C++ text embeddings, cosine similarity, and...	24	Experimental	2	C++
39	ubugeeei/markdown-embed-github markdown embedding github source links for markdown-it and unified	23	Experimental	1	TypeScript
40	riccardogiuriola/vecs Ultra-fast Semantic Cache Proxy written in pure C	23	Experimental	6	C
41	codethor0/creativity-exploit-engine Algorithmic creativity engine for security threat scenarios: scores NOVELTY...	23	Experimental	1	Python
42	zoobz-io/vex Type-safe embedding vector generation for Go	22	Experimental	—	Go
43	dewqasujbc/Vector 🚀 Enhance your CAD, WMS, or CAM software with Vector—an offline tool for...	22	Experimental	—	—
44	Heogam/NanoVector Simple and efficient SIMD-accelerated vector library for C#. Built with...	22	Experimental	—	C#
45	ashtech15/iFramable-pancakeSwap-widget Iframable PancakeSwap for any Websites, Feel free to use with iframe....	22	Experimental	1	TypeScript
46	arclabs561/innr SIMD-accelerated vector similarity primitives (dot, cosine, norm, maxsim,...	22	Experimental	—	Rust
47	Andzile/LOKIVECTOR 📊 Simplify data storage with LokiVector, an AI-ready document database...	22	Experimental	—	JavaScript
48	ksm26/Building-Applications-with-Vector-Databases Leverage vector databases to swiftly construct a diverse range of...	22	Experimental	8	Jupyter Notebook
49	vivekptnk/ProximaKit Pure-Swift vector search for Apple platforms. HNSW from scratch. Zero...	22	Experimental	—	Swift
50	arturoornelasb/Triadic-Neurosymbolic-Engine Deterministic neurosymbolic engine — projects embeddings into prime integers...	22	Experimental	—	Python
51	arcnem-ai/texvec Local-first text similarity search	22	Experimental	—	Go
52	habedi/multi-vector-hnsw A Java implementation of HNSW with multi-vector search support	20	Experimental	10	Java
53	agoor97/Mastering-Vector-DB-for-AI-applications This Repository collects my material about my course (Mastering Vector...	20	Experimental	7	Jupyter Notebook
54	IngestAI/veml Vector Embedding Markup Language - markup language designed specifically for...	20	Experimental	12	—
55	hscells/cui2vec Utility for cui2vec in Go	20	Experimental	13	Go
56	aion-labs/vectorizedb VectorizeDB is a database for vectorized data and metadata, allowing for...	20	Experimental	2	Python
57	url4irl/vectors-gateway A Sidecar service for applications that need vector database functionality...	20	Experimental	1	TypeScript
58	ernestojimenezruiz/ernestojimenezruiz.github.io Personal website of Ernesto Jiménez-Ruiz, Senior Lecturer in AI at City St...	19	Experimental	—	HTML
59	tahsinkoc/embrix A lightweight, production-ready NPM package for generating text embeddings...	19	Experimental	—	TypeScript
60	allemandi/embed-utils Fast, type-safe utilities for vector embedding comparison and search.	19	Experimental	—	JavaScript
61	reemabdullah/hnsw_vector_search A high-performance semantic search engine using Hierarchical Navigable Small...	19	Experimental	—	Rust
62	enot-style/imbeddings-go-sdk Lightweight Go SDK for image-embeddings service	19	Experimental	—	Go
63	tarekeldeeb/tajweed-embeddings Tajwīd-Aware Embedding Engine for Quranic Recitation AI	18	Experimental	3	Python
64	kossisoroyce/vxdf VXDF (Vector eXchange Data Format) is an AI-native container for text,...	17	Experimental	2	Python
65	httpjamesm/small-world-rs The easiest HNSW vector index you'll ever use.	17	Experimental	5	Rust
66	milosgajdos/embeviz A simple app for visualising text embeddings	17	Experimental	23	Go
67	wbhob/mistral Unofficial Go bindings for Mistral Le Platforme API, autogenerated from...	16	Experimental	1	Shell
68	AidanTilgner/Simple-Vector-Store A simple way to convert and manage files in vector storage.	16	Experimental	10	Python
69	kaxap/candle-go Use HuggingFace's Candle with Go.	15	Experimental	18	Rust
70	joe32140/maxsim-web Fast JavaScript MaxSim implementation for ColBERT retrieval. Supports pure...	15	Experimental	—	JavaScript
71	Vishvam10/proxima A simple HNSW library written in C++	15	Experimental	1	C++
72	AI-NOSUKE/PVM PVM（Phantom Vector...	15	Experimental	—	Python
73	Chaitanyabsprip/cartographer Your personal google	15	Experimental	7	Go
74	yossideutsch1973/breeze Ultra-Concise Local LLM Library for Go	15	Experimental	—	Go
75	VajraM-dev/embedorg A full-stack, containerized platform enabling document management, vector...	14	Experimental	3	TypeScript
76	CodelyTV/postgresql-auto_embeddings-course Automatic embeddings in Postgres course examples	14	Experimental	3	TypeScript
77	ourines/cloudflare-vectorize A Python client library for Cloudflare Vectorize API, providing vector...	14	Experimental	3	Python
78	astralarkitekt/qualia-tongue Deterministic symbolic algebra prevents mode collapse in LLM synthetic...	14	Experimental	—	TypeScript
79	jones0chikwezga/expo-vector-search 🔍 Enhance your apps with a fast on-device vector search engine for semantic...	14	Experimental	—	C
80	malakhovks/docsim UkrVectōrēs (former docsim) – an NLU-powered tool for knowledge discovery,...	13	Experimental	5	JavaScript
81	milosgajdos/embeddings-fun A simple Go project that generates charts from embeddings	13	Experimental	6	HTML
82	data-mill-cloud/mastro Metadata management in Go	13	Experimental	7	Go
83	Florents-Tselai/pgllm Use LLMs in Postgres	13	Experimental	7	C
84	jawerty/html2vec Vectorize HTML files and generate embeddings with structural and semantic...	13	Experimental	11	JavaScript
85	husniadil/vector-embeddings-qa This repository demonstrates the implementation of text embeddings for...	13	Experimental	2	Python
86	eja/proxemb a lightweight embedding proxy server with caching	12	Experimental	3	Go
87	Knoppiix/InstaEmbedRouter basically just a reverse-proxy to make Instagram posts embeds work...	12	Experimental	1	Go
88	3p3r/cpu-embeddings embeddings generated on CPU for lightweight classification tasks	11	Experimental	—	TypeScript
89	brehldev/opensearch-automatic-embeddings Set up OpenSearch to automatically generate embeddings for incoming data...	11	Experimental	—	Shell
90	altamsh04/zeno4a Vector cache for AI embeddings written in Go.	11	Experimental	—	—
91	thegenem0/metrovector A high-performance, compact binary format for storing and querying vector embeddings.	10	Experimental	2	Rust
92	arturoeanton/go-example-nomic-embed-text This project demonstrates how to integrate text embeddings using...	10	Experimental	1	Go
93	melvinchia3636/imageUploader An image delivery network	10	Experimental	1	JavaScript

Comparisons in this category

azure-search-vector-samples and azure_kusto_vector (61 vs 32)