High-Performance Vector Search RAG Tools

Lightweight, optimized vector databases and search engines (BM25, semantic, hybrid) with emphasis on speed, edge deployment, and low-latency performance. Does NOT include general RAG orchestration, document processing pipelines, or application-layer RAG frameworks.

There are 59 high-performance vector search tools tracked. 2 score above 50 (established tier). The highest-rated is raphaelmansuy/edgequake at 64/100 with 1,539 stars. 2 of the top 10 are actively maintained.

Get all 59 projects as JSON

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

Open to everyone — 100 requests/day, no key needed. Get a free key for 1,000/day.

#	Tool	Score	Tier	Stars	Language
1	raphaelmansuy/edgequake High-performance GraphRAG inspired from LightRag written in Rust	64	Established	1,539	Rust
2	bosun-ai/swiftide Fast, streaming indexing, query, and agentic LLM applications in Rust	55	Established	676	Rust
3	AlphaCorp-AI/RustyRAG ⚡ Sub-200ms RAG API built in Rust — document ingestion, Milvus vector...	43	Emerging	66	Rust
4	cool-japan/oxirag A four-layer Retrieval-Augmented Generation (RAG) engine in Rust with...	37	Emerging	8	Rust
5	itisrohit/IsoSearch High-performance vector search engine SIMD-accelerated HNSW and LSH.	35	Emerging	1	Rust
6	NP-compete/pageindex Vectorless, reasoning-based RAG using hierarchical document indexing with...	34	Emerging	3	Python
7	kkollsga/kglite Lightweight in-memory knowledge graph with Cypher query support	33	Emerging	18	Rust
8	Cooksey99/nucleus Nucleus is a modular Rust library for building advanced local AI tools and...	33	Emerging	12	Rust
9	ghatdev/embedding-benchmark Local Embedding models benchmark tool & result	29	Experimental	2	Rust
10	pixlie/PixlieAI Please check our new project with similar targets: https://github.com/pixlie/Pixlie	29	Experimental	48	Rust
11	rohansx/ctxgraph The SQLite of context graphs : local-first decision trace engine with ONNX...	28	Experimental	3	Rust
12	giova333/semantic-cache A key-value store that matches based on semantic similarity instead of exact...	26	Experimental	6	Java
13	FoxNoseTech/foxnose-python Official Python SDK for FoxNose	26	Experimental	5	Python
14	zTgx/vectorless Vectorless is a RAG engine. No vector database. No embeddings. Just...	25	Experimental	2	Rust
15	rdx-lang/rdx Official parser and toolchain for RDX (Reactive Document eXpressions) — a...	23	Experimental	1	Rust
16	j9082079/zvec Accelerate vector similarity search and embedding management for efficient...	23	Experimental	1	C++
17	neurondb/PageIndex Go library & CLI: vectorless hierarchical document indexing from PDF and...	23	Experimental	1	Go
18	MukundaKatta/IndexPulse Lightweight in-memory vector index — cosine, euclidean, dot product search with NumPy	22	Experimental	—	Python
19	shinegami-2002/pageindex-local-rag Local-first vectorless RAG using PageIndex. Supports Ollama (fully local) +...	22	Experimental	—	Python
20	Yolshin195/RAG-rs High-performance RAG microservice written in Rust. Provides semantic search...	22	Experimental	—	—
21	Mariam500000/PageIndex 🔍 Empower efficient retrieval with PageIndex, a reasoning-based system that...	22	Experimental	—	Jupyter Notebook
22	orchestra-mcp/plugin-engine-rag Rust RAG engine — Tree-sitter parsing, Tantivy search indexing, vector...	22	Experimental	—	Rust
23	garnizeh/chronos A local-first OS context engine and RAG diary. Built in Rust with zero-cloud...	22	Experimental	—	Rust
24	sochdb/sochdb-rust-examples SochDB is a high-performance embedded, ACID-compliant database purpose-built...	21	Experimental	2	Rust
25	kailas-cloud/vecdex Lightweight vector search engine on top of Valkey & Redis	21	Experimental	2	Go
26	matiasinsaurralde/pageindex-go Go rewrite of PageIndex for generating a hierarchical, reasoning-friendly...	21	Experimental	2	Go
27	platformrocks/osr.gik 🌱 Guided Indexing Kernel [Experimental]	20	Experimental	10	Rust
28	AliProgrammin/vectorless-RAG-GSD Tree-based document intelligence — no vectors, no chunks, full explainability.	20	Experimental	1	JavaScript
29	iahuang/stembed-rs Lightweight static embedding implementation in Rust designed for embedded...	20	Experimental	1	Rust
30	velarynai/ragora-python Ragora python sdk	19	Experimental	—	Python
31	ottor28-cyber/THINKD-IDX1302026 This repository hosts the canonical version of the THINKD-IDX13026 model,...	19	Experimental	—	—
32	olafurjohannsson/edgerag EdgeRAG is a lightweight Rust implementation of Retrieval-Augmented...	19	Experimental	6	Rust
33	iulia-cyber/RepoSensei Local-first RAG + LLM code Q&A with dependency graph, search, and citations....	19	Experimental	—	JavaScript
34	biuld/naviscope Unified Code Knowledge Graph Engine for AI Agents & Developers	19	Experimental	—	Rust
35	taras-kolodchyn/gaia-mnemosyne Universal Knowledge Engine (RAG + Graph + Ontology)	19	Experimental	—	Rust
36	wellywahyudi/GeoRAG High-performance, local-first RAG engine with native geospatial...	19	Experimental	—	Rust
37	rauleli/tclembedding High-performance Tcl extension for local vector embeddings via ONNX Runtime,...	19	Experimental	—	Tcl
38	viacheslav-dobrynin/SparkBERT Hybrid vector search using an inverted index and BERT embeddings	17	Experimental	2	Rust
39	devflowinc/hn-search-RAG Hacker News Search and RAG built using Rust actix-web, minijinja, SolidJS,...	17	Experimental	30	TypeScript
40	tao3k/wenbdao 问道wendao - high-performance knowledge and link-graph engine, AI RAG.	15	Experimental	1	Rust
41	tao3k/wendao 问道 wendao - high-performance knowledge and link-graph engine, AI RAG.	15	Experimental	1	Rust
42	tahcohcat/gofaiss A Go-native, dependency-free vector search engine inspired by FAISS.	15	Experimental	—	Go
43	Diomandeee/rag-plusplus RAG++ Context Gateway: federated retrieval across pgvector, Graph Kernel,...	14	Experimental	—	Rust
44	SiluPanda/weav ⚡ In-memory context graph database written in Rust. Purpose-built for AI/LLM...	14	Experimental	—	Rust
45	lancedb/genkitx-lancedb Community Plugin for Genkit to use LanceDB	14	Experimental	3	TypeScript
46	li-xiu-qi/U-PG-RAG U-PG-RAG, a campus Q&A backend system, is built on PostgreSQL...	14	Experimental	11	Python
47	swar09/photon Photon DB is high performance vector database i built using Rust but with...	13	Experimental	2	Rust
48	ksmin23/rag-with-postgresql-pgvector-and-sagemaker Question Answering application with Large Language Models (LLMs) and Amazon...	13	Experimental	11	Python
49	atopx/rag-example A RAG (Retrieval-Augmented Generation) example project	12	Experimental	1	Rust
50	chuanqisun/fast-theta High-performance cosine similarity computation	12	Experimental	1	TypeScript
51	mutabay/Rusty-RAG-A-Lightweight-RAG-System-for-Edge-Applications DocuQuery: A private, local-first AI assistant that lets you upload...	11	Experimental	—	Rust
52	mmtmr/pageindex-rag PageIndex RAG: Reasoning-based retrieval architecture replacing vector...	11	Experimental	—	—
53	bbzaffari/Lightning-Fast-RAG-Core-PureAI-s-PureCPP-VDB At PUREAI, we’re building the fastest RAG framework. My work centers on the...	11	Experimental	—	Jupyter Notebook
54	magic003/vinyl A RAG system managing personal knowledge. Powered by LLM. Written in Rust....	11	Experimental	—	Rust
55	aryalaadi/genragrs A modular Rust library for Retrieval-Augmented Generation (RAG) with Ollama...	11	Experimental	—	Rust
56	qbxlvnf11/lancedb-rag Build & Test Lance DB for RAG Embedding Search	11	Experimental	—	Python
57	fullscreen-triangle/autobahn A Biological Metabolism Computer for Probabilistic Information Processing	11	Experimental	—	Rust
58	text-yoga/cli CLI for automatic generation of embeddings	10	Experimental	1	Rust
59	cmmvio/cmmv-ai CMMV module for LLM integration, tokenization, RAG dataset creation, and...	10	Experimental	1	TypeScript