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 49 high-performance vector search tools tracked. 2 score above 50 (established tier). The highest-rated is raphaelmansuy/edgequake at 68/100 with 1,539 stars. 2 of the top 10 are actively maintained.

Get all 49 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	68	Established	1,539	Rust
2	bosun-ai/swiftide Fast, streaming indexing, query, and agentic LLM applications in Rust	59	Established	676	Rust
3	AlphaCorp-AI/RustyRAG ⚡ Sub-200ms RAG API built in Rust — document ingestion, Milvus vector...	42	Emerging	66	Rust
4	cool-japan/oxirag A four-layer Retrieval-Augmented Generation (RAG) engine in Rust with...	39	Emerging	8	Rust
5	kkollsga/kglite Lightweight in-memory knowledge graph with Cypher query support	37	Emerging	18	Rust
6	pixlie/PixlieAI Please check our new project with similar targets: https://github.com/pixlie/Pixlie	36	Emerging	48	Rust
7	NP-compete/pageindex Vectorless, reasoning-based RAG using hierarchical document indexing with...	36	Emerging	3	Python
8	Cooksey99/nucleus Nucleus is a modular Rust library for building advanced local AI tools and...	34	Emerging	12	Rust
9	itisrohit/IsoSearch High-performance vector search engine SIMD-accelerated HNSW and LSH.	34	Emerging	1	Rust
10	giova333/semantic-cache A key-value store that matches based on semantic similarity instead of exact...	33	Emerging	6	Java
11	zTgx/vectorless Vectorless is a RAG engine. No vector database. No embeddings. Just...	28	Experimental	2	Rust
12	rohansx/ctxgraph The SQLite of context graphs : local-first decision trace engine with ONNX...	28	Experimental	3	Rust
13	FoxNoseTech/foxnose-python Official Python SDK for FoxNose	28	Experimental	5	Python
14	olafurjohannsson/edgerag EdgeRAG is a lightweight Rust implementation of Retrieval-Augmented...	25	Experimental	6	Rust
15	sochdb/sochdb-rust-examples SochDB is a high-performance embedded, ACID-compliant database purpose-built...	25	Experimental	2	Rust
16	devflowinc/hn-search-RAG Hacker News Search and RAG built using Rust actix-web, minijinja, SolidJS,...	24	Experimental	30	TypeScript
17	platformrocks/osr.gik 🌱 Guided Indexing Kernel [Experimental]	24	Experimental	10	Rust
18	matiasinsaurralde/pageindex-go Go rewrite of PageIndex for generating a hierarchical, reasoning-friendly...	23	Experimental	2	Go
19	neurondb/PageIndex Go library & CLI: vectorless hierarchical document indexing from PDF and...	23	Experimental	1	Go
20	garnizeh/chronos A local-first OS context engine and RAG diary. Built in Rust with zero-cloud...	22	Experimental	—	Rust
21	AliProgrammin/vectorless-RAG-GSD Tree-based document intelligence — no vectors, no chunks, full explainability.	22	Experimental	1	JavaScript
22	rdx-lang/rdx Official parser and toolchain for RDX (Reactive Document eXpressions) — a...	22	Experimental	1	Rust
23	Yolshin195/RAG-rs High-performance RAG microservice written in Rust. Provides semantic search...	22	Experimental	—	—
24	shinegami-2002/pageindex-local-rag Local-first vectorless RAG using PageIndex. Supports Ollama (fully local) +...	22	Experimental	—	Python
25	li-xiu-qi/U-PG-RAG U-PG-RAG, a campus Q&A backend system, is built on PostgreSQL...	21	Experimental	11	Python
26	ottor28-cyber/THINKD-IDX1302026 This repository hosts the canonical version of the THINKD-IDX13026 model,...	21	Experimental	—	—
27	velarynai/ragora-python Ragora python sdk	21	Experimental	—	Python
28	biuld/naviscope Unified Code Knowledge Graph Engine for AI Agents & Developers	21	Experimental	—	Rust
29	iulia-cyber/RepoSensei Local-first RAG + LLM code Q&A with dependency graph, search, and citations....	21	Experimental	—	JavaScript
30	wellywahyudi/GeoRAG High-performance, local-first RAG engine with native geospatial...	21	Experimental	—	Rust
31	taras-kolodchyn/gaia-mnemosyne Universal Knowledge Engine (RAG + Graph + Ontology)	21	Experimental	—	Rust
32	orchestra-mcp/plugin-engine-rag Rust RAG engine — Tree-sitter parsing, Tantivy search indexing, vector...	21	Experimental	—	Rust
33	ksmin23/rag-with-postgresql-pgvector-and-sagemaker Question Answering application with Large Language Models (LLMs) and Amazon...	20	Experimental	11	Python
34	atopx/rag-example A RAG (Retrieval-Augmented Generation) example project	18	Experimental	1	Rust
35	tao3k/wendao 问道 wendao - high-performance knowledge and link-graph engine, AI RAG.	17	Experimental	1	Rust
36	cmmvio/cmmv-ai CMMV module for LLM integration, tokenization, RAG dataset creation, and...	17	Experimental	1	TypeScript
37	text-yoga/cli CLI for automatic generation of embeddings	17	Experimental	1	Rust
38	tao3k/wenbdao 问道wendao - high-performance knowledge and link-graph engine, AI RAG.	14	Experimental	1	Rust
39	tahcohcat/gofaiss A Go-native, dependency-free vector search engine inspired by FAISS.	13	Experimental	—	Go
40	mutabay/Rusty-RAG-A-Lightweight-RAG-System-for-Edge-Applications DocuQuery: A private, local-first AI assistant that lets you upload...	13	Experimental	—	Rust
41	fazlerahmanejazi/emry Fast, offline CLI for deep reasoning of codebase via static analysis & vector search.	13	Experimental	2	Rust
42	fullscreen-triangle/autobahn A Biological Metabolism Computer for Probabilistic Information Processing	13	Experimental	—	Rust
43	Diomandeee/rag-plusplus RAG++ Context Gateway: federated retrieval across pgvector, Graph Kernel,...	13	Experimental	—	Rust
44	magic003/vinyl A RAG system managing personal knowledge. Powered by LLM. Written in Rust....	13	Experimental	—	Rust
45	aryalaadi/genragrs A modular Rust library for Retrieval-Augmented Generation (RAG) with Ollama...	13	Experimental	—	Rust
46	qbxlvnf11/lancedb-rag Build & Test Lance DB for RAG Embedding Search	13	Experimental	—	Python
47	mmtmr/pageindex-rag PageIndex RAG: Reasoning-based retrieval architecture replacing vector...	13	Experimental	—	—
48	rixrix/rust-rag-lancedb-indexer An implementation of Retrieval-Augmented Generation (RAG) indexing using...	12	Experimental	6	Jupyter Notebook
49	mkpro118/lancedb-snippets LanceDB-Snippet is a customizable library for efficient storage, retrieval,...	11	Experimental	—	Python

Comparisons in this category

edgequake and edgerag (68 vs 25)