Semantic Search Engines Vector Databases

Complete semantic search applications and engines that retrieve relevant results by understanding meaning and context across text, audio, images, or files. Does NOT include vector databases, embedding models, or RAG chatbots—only end-to-end search tools and demonstrations.

There are 140 semantic search engines tools tracked. 3 score above 70 (verified tier). The highest-rated is meilisearch/meilisearch at 88/100 with 56,362 stars and 2,138,678 monthly downloads. 4 of the top 10 are actively maintained.

Get all 140 projects as JSON

curl "https://pt-edge.onrender.com/api/v1/datasets/quality?domain=vector-db&subcategory=semantic-search-engines&limit=20"

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#	Tool	Score	Tier	Stars	Language
1	meilisearch/meilisearch A lightning-fast search engine API bringing AI-powered hybrid search to your...	88	Verified	56,362	Rust
2	nuclia/nucliadb NucliaDB, The AI Search database for RAG	77	Verified	716	Python
3	vespa-engine/vespa AI + Data, online. https://vespa.ai	71	Verified	6,820	Java
4	PrithivirajDamodaran/FlashRank Lite & Super-fast re-ranking for your search & retrieval pipelines. ...	63	Established	948	Python
5	ICIJ/datashare A self‑hosted search engine for documents	62	Established	713	Java
6	oramasearch/orama 🌌 A complete search engine and RAG pipeline in your browser, server or edge...	53	Established	10,221	TypeScript
7	marcominerva/SqlDatabaseVectorSearch A Blazor Web App and Minimal API for performing RAG (Retrieval Augmented...	50	Established	135	C#
8	abhijithneilabraham/tableQA AI Tool for querying natural language on tabular data.	50	Established	318	Python
9	DavidMStraub/sifts Simple full text & vector search engine Python library	50	Established	4	Python
10	treygrainger/ai-powered-search The codebase for the book "AI-Powered Search" (Manning Publications, 2025)	48	Emerging	372	Jupyter Notebook
11	fergiemcdowall/search-index A persistent, network resilient, full text search library for the browser and Node.js	48	Emerging	1,425	JavaScript
12	zjohn77/retrieval Tunable full text search engine in JavaScript that: (1) works natively on...	47	Emerging	35	JavaScript
13	smclab/openk9 🔍 Open Source Enterprise Cognitive Search Engine	47	Emerging	48	Java
14	Azure-Samples/azure-sql-db-vector-search Samples about using vector in SQL Server and Azure SQL	47	Emerging	91	Jupyter Notebook
15	oramasearch/oramacore OramaCore is the complete runtime you need for your projects, answer...	45	Emerging	245	Rust
16	kreeben/resin Language model search engine built on a vector database and an anything...	44	Emerging	576	C#
17	neonwatty/meme-search The open source Meme Search Engine and Finder. Free and built to self-host...	44	Emerging	640	HTML
18	superlinked/superlinked Superlinked is a Python framework for AI Engineers building high-performance...	43	Emerging	1,501	Jupyter Notebook
19	monkesearch/monkeSearch fully local, temporally aware natural language file search on your pc! even...	42	Emerging	174	Python
20	poloclub/mememo A JavaScript library that brings vector search and RAG to your browser!	41	Emerging	158	TypeScript
21	AmirLayegh/procurement-ai-assistant 🏆 AI Procurement Assistant - Google Cloud Sweden Hackathon Winner. Natural...	41	Emerging	23	TypeScript
22	upstash/wikipedia-semantic-search Semantic Search on Wikipedia with Upstash Vector	40	Emerging	471	TypeScript
23	scylladb/vector-search-examples Vector search examples with ScyllaDB	40	Emerging	4	Python
24	decisionfacts/semantic-ai An open source framework for Retrieval-Augmented System (RAG) uses semantic...	38	Emerging	22	Python
25	microsoft/YOLaT-VectorGraphicsRecognition Source Code of NeurIPS21 and T-PAMI24 paper: Recognizing Vector Graphics...	38	Emerging	101	Python
26	fukurosan/Jhaystack A JavaScript search engine with zero dependencies.	37	Emerging	13	TypeScript
27	hariharaprabhu/tabsearch Package for Vector Search over a tabular dataset across multiple columns	36	Emerging	7	Python
28	GoogleCloudPlatform/spanner-bb-samples Samples showcasing Spanner multi model capabilities - across relational,...	36	Emerging	6	Python
29	inboxpraveen/Context-Search-Engine Context Search Engine is an AI-powered semantic document search platform...	34	Emerging	13	Python
30	Textualization/php-semantic-search PHP Semantic Search Classes	30	Emerging	11	PHP
31	desteves/wonders-of-the-world A Python-based Vector Search REST endpoint demo using MongoDB Atlas and Pulumi	29	Experimental	1	Python
32	tim-hub/bible-vector-search Bible verse search in meaning theough embedding and vector database.	29	Experimental	26	TypeScript
33	mongodb-industry-solutions/retail-pricing-search-personaliztion Retail AI pricing and personalization enhanced search results	27	Experimental	4	Jupyter Notebook
34	Sidhey/search 🔍 Implement hybrid search using Vespa and FastAPI, blending BM25 and dense...	27	Experimental	1	Python
35	fpgmaas/pyatlas Browse the top 10,000 packages on PyPI with the help of vector embeddings	27	Experimental	87	TypeScript
36	patricktrainer/duckdb-embedding-search Fast similarity search using DuckDB	27	Experimental	146	Python
37	shivvamm/Search-With-Aisia AI Search engine	27	Experimental	13	JavaScript
38	BjornMelin/vector-vault ⚡ Instantly index, deduplicate, and search your code, docs, and web content...	26	Experimental	3	—
39	imagodata/filter_mate FilterMate is a Qgis plugin, an everyday companion that allows you to easily...	25	Experimental	3	Python
40	nicogis/VectorSearchXAF Simple PoC of RAG in XAF Blazor	25	Experimental	2	C#
41	aws-samples/opensearch-serverless-common-usage-patterns Typical use cases of opensearch serverelss: search, time-series, kinesis...	25	Experimental	19	Python
42	rahulapjs/SearchlyAI SearchlyAI is a full-stack RAG search engine built with FastAPI and React...	25	Experimental	2	Python
43	Aquila-Network/aquila An easy to use Neural Search Engine. Index latent vectors along with JSON...	24	Experimental	379	HTML
44	Separative-involucre520/SearchPaperByEmbedding 🔍 Search for similar academic papers using semantic search. Utilize local...	24	Experimental	—	Python
45	tokenmill/beagle Beagle helps you identify keywords, phrases, regexes, and complex search...	24	Experimental	54	Clojure
46	surinderlohat/searchkit Plug-in vector search for any stack — one container, zero config, production ready.	23	Experimental	1	Python
47	Joangeldelarosa/aiquery Interact with your databases using OpenAI Natural Language Processing (NPL)	23	Experimental	13	TypeScript
48	Jeet-Chugh/ask-discord semantic search for discord channels	23	Experimental	2	Python
49	Pango470/ARK-index 🗂 Generate fast, language-aware code indexes with automatic test mapping and...	22	Experimental	—	TypeScript
50	Kelvin-genya/indexer Submit URLs in bulk to Google Indexing API and IndexNow with auto key...	22	Experimental	—	TypeScript
51	22AD040/smart-ai-knowledge-navigator AI-powered semantic search and knowledge intelligence platform built with...	22	Experimental	—	Python
52	rineshpk/dotnet-vector-search-demo Building a .NET RAG Application with PostgreSQL pgvector for AI Vector...	22	Experimental	—	C#
53	conceited-watergillyflower311/meilisearch-desktop Manage Meilisearch instances across platforms with a desktop app built using...	22	Experimental	—	TypeScript
54	chrishenyard/Vector.Search AI Solution for Indexing Source Code	22	Experimental	—	C#
55	TechAlumnus/vectorflow-lab An interactive 2D/3D playground for visualizing Vector Similarity metrics...	22	Experimental	—	TypeScript
56	qingfengqx/Semantic-Search 🔍 Enable precise semantic image, video, and document search in ComfyUI using...	22	Experimental	—	Python
57	rineshpk/dotnet-rag-pgvector This project demonstrates how to build a semantic search + RAG pipeline using .NET	22	Experimental	—	C#
58	anurag0510/semantic-search-engine An event-driven, distributed system for semantic text matching, enabling...	22	Experimental	—	Rust
59	kamranxdev/Perplexify About Perplexify is an AI-powered search engine. It is an Open source...	22	Experimental	14	TypeScript
60	esteininger/vector-search The definitive guide to using Vector Search to solve your semantic search...	22	Experimental	270	Jupyter Notebook
61	Bohdan-Khomtchouk/PubData Smart search engine for all bioinformatics databases worldwide	22	Experimental	27	Python
62	ShankarKakumani/eywa A local-first knowledge base with hybrid search and cross-encoder reranking....	21	Experimental	2	Rust
63	CarterPerez-dev/vuemantics Semantic media search with Qwen2.5-VL + bge-m3 embeddings and pgvector	21	Experimental	2	Python
64	AllanYiin/SQLRAG SQL Server as a vector database, SQL Server Extenstion for RAG	21	Experimental	25	C#
65	alDuncanson/latent Peer into latent space.	21	Experimental	2	Go
66	Artmann/olingo Lightweight semantic search database with text embeddings for Node.js and Bun	20	Experimental	1	TypeScript
67	herakles-dev/athenaeum Self-hosted semantic library platform — upload docs, search by meaning, chat...	20	Experimental	1	Python
68	encoder-run/operator Kubernetes operator for producing vector embeddings based on source code...	20	Experimental	50	TypeScript
69	wosledon/Berry Berry — 可扩展的 .NET 模块化 RAG 与向量检索框架，包含 Embeddings、VectorStore、RAG...	20	Experimental	1	TypeScript
70	jabing/memsearch-ts Semantic memory search for markdown knowledge bases — TypeScript/Node.js...	19	Experimental	—	TypeScript
71	whmatrix/semantic-indexing-batch-01 661K-vector semantic indexing across 6 datasets. e5-large-v2 embeddings,...	19	Experimental	—	HTML
72	Spartee/LLM-VectorDB-Bootcamp Course material for the DSD bootcamp on combining large language models with...	19	Experimental	5	Jupyter Notebook
73	hordiales/audio-semantic-search-for-journalists Demo project. Semantic audio search for journalists	19	Experimental	—	HTML
74	fr0ziii/recall An schema multimodal semantic search engine with dynamic schema validation,...	19	Experimental	—	Python
75	markkr125/vector-retriever Full-featured document search system with semantic/keyword hybrid search,...	19	Experimental	—	JavaScript
76	PanGan21/vector-lab Educational semantic search CLI for embeddings and vector search.	19	Experimental	—	Python
77	whmatrix/research-corpus-discovery Semantic search framework for research archives. FAISS indices, e5-large-v2...	19	Experimental	—	Python
78	whmatrix/semantic-indexing-batch-02 Large-scale semantic indexing pipelines producing 8.35M+ vectors across...	19	Experimental	—	Python
79	EricFillion/ericsearch A local vector search engine built for speed and scalability	19	Experimental	—	Python
80	const-nishant/personal-drive Built a production-ready personal cloud drive with semantic document search...	19	Experimental	—	Python
81	pronzzz/llm-search-engine A robust local AI search engine built with Streamlit and FAISS that uses...	19	Experimental	—	Python
82	dcs-soni/stash-it "Stash It" is a React and TypeScript-based web application for securely...	18	Experimental	3	TypeScript
83	MohamedRebai41/Ripple_Backend Ripple is an AI-driven influencer marketing platform. This microservice...	17	Experimental	5	Python
84	wesleyscholl/PHind 🔍 PHind what you mean, not just what you type. Semantic search for PHP with...	16	Experimental	1	PHP
85	praveenc/simple-knowledge-base A simple, local-first semantic knowledge base. Add documents, search with...	16	Experimental	1	Python
86	selangor-no-1/nus-sentiment NUS Hack&Roll 2023 Team 8: Better + Semantic Reddit Search	16	Experimental	1	Python
87	alibaghernejad/retraven A cloud-native search and recommendation playground built on top of .NET...	16	Experimental	1	F#
88	mahfuzur-mafu/semantic-text-retrieval-system This project implements an end to end semantic text retrieval system based...	15	Experimental	—	Jupyter Notebook
89	nethra0906/ClusterCache A semantic search system using vector embeddings, fuzzy clustering, FAISS...	15	Experimental	1	Python
90	dev-vivekkumarverma/typesense typesense project	15	Experimental	2	Python
91	myriel-io/vectorsearch VectorSearch.Tech - Blog articles , tutorials, and guides on latest search...	14	Experimental	3	HTML
92	tigranbs/search-engine-example-text-embeddings This project has been created to demonstrate how we can build modern Search...	14	Experimental	9	TypeScript
93	SAHIXXX12/AI-Search-Engine 🔍 Build an AI-powered search engine with React, TypeScript, and Vite for...	14	Experimental	—	TypeScript
94	NasitSony/SmartSearch Production-style semantic search and RAG backend built as a distributed...	14	Experimental	—	Java
95	HrushiBorhade/code-indexer Semantic code search engine inspired by Cursor. AST chunking via...	14	Experimental	—	JavaScript
96	suvratsharma7/knowledge-search-system 🔍 Hybrid Search (BM25 + FAISS) with real-time KPI monitoring, nDCG...	14	Experimental	—	Python
97	durg-giri123/endee-semantic-search Semantic search system using transformer embeddings and vector similarity,...	14	Experimental	—	Python
98	parva-kothari/Newsgroup Semantic search system over the 20 Newsgroups dataset with fuzzy GMM...	14	Experimental	—	Python
99	RimaNafougui/ArxivSearchEngine Vector-based semantic search engine using Sentence Transformers. Features...	14	Experimental	—	Python
100	ivancasenda/semantic-search This project performs a semantic search on Stackoverflow datasets. It uses...	14	Experimental	1	Jupyter Notebook
101	shubham-web/reusable-vector-search-service [WORK IN PROGRESS] Complete vector search stack • Document processing...	14	Experimental	3	Python
102	f0lio/discontext Semantic search for Discord messages.	14	Experimental	9	TypeScript
103	manncodes/fontsearch project for HackSC '24 1st position - Artists track	14	Experimental	9	Jupyter Notebook
104	abhirockzz/cosmosdb-vector-search-python-typescript-java-dotnet A getting started guide for folks who are looking for a way to quickly and...	13	Experimental	8	Java
105	AlextianCreative/AlextianCreative.github.io Root Repository	13	Experimental	—	HTML
106	pratyushmohit/semantic-search A FastAPI-based web application that enables semantic search using a Qdrant...	13	Experimental	5	Python
107	hissain/AndroidSemanticSearch A minimalistic Android app showcasing semantic search using ObjectBox and...	13	Experimental	2	Jupyter Notebook
108	shrimpy8/semantic-search-next A full-stack RAG (Retrieval Augmented Generation) application with hybrid...	12	Experimental	1	Python
109	thiagoaramizo/vetorial-search-service Backend API for data registration and semantic search, acting as an MCP...	12	Experimental	1	TypeScript
110	rooneyrulz/vector-search-sandbox This repository contains my practice and experiments with vector search and...	12	Experimental	1	JavaScript
111	ishaanjav/prot2tex-protein-search Semantic search tool for proteins based off natural-language functional description	12	Experimental	3	TypeScript
112	oguzsh/semantica Semantica lets you upload any PDF, convert it into searchable chunks, and...	12	Experimental	1	Python
113	chipsxp/ResearchAI An AI-powered semantic search and information retrieval system built with...	12	Experimental	1	JavaScript
114	StevenRice99/Vector-Search Efficient searching for arXiv papers	12	Experimental	1	C#
115	ad8tea/endee-semantic-search This project is a semantic search system using transformer embeddings and...	12	Experimental	1	Python
116	vemonet/concept-resolver 🔎 A name resolution service for biomedical concepts, using vector databases...	12	Experimental	3	Python
117	yashmahe2020/SemanticSearch High-performance semantic search engine using Vector embeddings for...	12	Experimental	1	TypeScript
118	zyang37/beyond_vector_search Beyond Vector Search: Hybrid Vector/Knowledge Graph Query Engine for...	12	Experimental	1	Jupyter Notebook
119	heresalord/localsearchengine Local, privacy-first desktop search engine for documents using semantic...	12	Experimental	1	Python
120	ixsanpe/fitness-ai-assistant A multimodal AI system for exercise data with embeddings and semantic...	11	Experimental	—	Python
121	MrMinor-dev/data-pipeline-framework Hash-based incremental indexing pipeline for 373 AI conversations — <10s...	11	Experimental	—	—
122	samarthumrao/endeeProject AI-powered ticket classification system built with Django and Endee Vector...	11	Experimental	—	C++
123	j341nono/EmbedVizMemo A next-generation notebook that uses embeddings for semantic search and 3D...	11	Experimental	—	TypeScript
124	vainiovesa/Bible-vector-search-openai Semantic verse search with OpenAI text embedding	11	Experimental	—	Python
125	nabarvn/semantic-search Not your average search engine.	11	Experimental	—	TypeScript
126	vainiovesa/Bible-vector-search-local Local semantic verse search	11	Experimental	—	Python
127	Med-Karim-Ben-Boubaker/localume Localume is a powerful desktop application that enables semantic search...	11	Experimental	2	Python
128	jaya6400/smart-search-cosdata Semantic Search using Python and Cosdata vector database	11	Experimental	—	HTML
129	Anshul21107/ECCN-classification Hybrid ECCN classifier API using sentence‑transformer embeddings + FAISS...	11	Experimental	—	Python
130	pickhottea/lineage-aware-semantic-retrieval A lineage-aware semantic retrieval system with controlled data lanes, chunk...	11	Experimental	—	Python
131	joeywhelan/eis-elser Demonstration of usage of the EIS GPU-enabled embedding model (ELSER).	11	Experimental	—	Jupyter Notebook
132	joeywhelan/jobsearch Demonstration of various query capabilities in the job posting domain.	11	Experimental	—	Jupyter Notebook
133	Syed8558/search-latency-benchmark Benchmarks lexical and semantic search techniques (BM25, cosine similarity,...	11	Experimental	—	Python
134	ciCciC/news-article-vector-search Blazing fast real-time NRC search empowered with multilingual SLM and Qdrant	11	Experimental	6	Jupyter Notebook
135	innovatorved/VectorBase Our powerful image search engine uses vector databases to store and search...	11	Experimental	22	JavaScript
136	TerboucheHacene/ScholarSense A Neural Search Tool that helps you find relevant papers to read based on...	11	Experimental	2	Python
137	OrtizDiego/versewise VerseWise is a modern, feature-rich Bible study application designed to...	11	Experimental	—	TypeScript
138	NasitSony/AI-Powered-Recommendation-Engine-For-Documents Production-grade semantic search and RAG backend built as a distributed...	11	Experimental	—	Java
139	mdnaseif/SuitAI-Search-Engine SuitAI-Search-Engine is an innovative AI-powered search engine designed to...	10	Experimental	1	Jupyter Notebook
140	ericwarriner/Oracle23aiVectorSearch A prototype web application using Oracle 23ai Vector Search Technology to...	10	Experimental	1	TypeScript

Comparisons in this category

SqlDatabaseVectorSearch and azure-sql-db-vector-search (50 vs 47)