Retrieval-Augmented Generation NLP Tools

Tools and frameworks implementing RAG systems that combine document retrieval with LLM-based generation for knowledge-base question answering, semantic search, and context-aware responses. Does NOT include general information retrieval, semantic search without LLM integration, or knowledge graph construction without retrieval components.

There are 21 retrieval-augmented generation tools tracked. 3 score above 50 (established tier). The highest-rated is web-arena-x/webarena at 55/100 with 1,398 stars.

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#	Tool	Score	Tier	Stars	Language
1	web-arena-x/webarena Code repo for "WebArena: A Realistic Web Environment for Building Autonomous Agents"	55	Established	1,398	Python
2	nabeelxy/syara SYARA: Super YARA Rules for GenAI Era	51	Established	12	Python
3	princeton-nlp/WebShop [NeurIPS 2022] 🛒WebShop: Towards Scalable Real-World Web Interaction with...	50	Established	507	Python
4	X-LANCE/Mobile-Env A Universal Platform for Training and Evaluation of Mobile Interaction	37	Emerging	61	Python
5	shbernal/pdfanki Create Anki decks from PDF/EPUB files using NLP with LLMs.	35	Emerging	1	TypeScript
6	princeton-nlp/lwm We develop world models that can be adapted with natural language....	33	Emerging	25	Python
7	zimingyou01/DatawiseAgent [EMNLP 2025] DatawiseAgent: A Notebook-Centric LLM Agent Framework for...	32	Emerging	4	Python
8	dinhanhx/cakewalk-rag A very simple RAG implementation	30	Emerging	2	Python
9	jitinkrishnan/NASA-SE A Virtual Assistant for NASA's Systems Engineers (AAAI-MAKE '19 '20)	27	Experimental	8	Jupyter Notebook
10	khoj-ai/lantern Lantern manages a waitlist for Khoj. It used to be a lot more, but now it's simple!	24	Experimental	4	Python
11	poojakira/semantic-rag-engine Production-grade RAG pipeline with LangChain, ChromaDB, and semantic search....	22	Experimental	—	—
12	DominicMukilan/ithkuil-grammar-copilot RAG+validation system demonstrating LLM accuracy improvement from 65% to 95%	20	Experimental	1	Python
13	antononcube/Python-LLMTextualAnswer Python package for finding textual answers via LLMs.	19	Experimental	—	Python
14	KrishnaNarkhede/NLP-DataProcessor LLM Based Data Analyst Assistant : AI-powered data analysis platform that...	18	Experimental	1	Python
15	pahul0303/llassist A tool for processing and analyzing research articles using NLP and Large...	18	Experimental	1	C#
16	wyu97/RACo Resources for Retrieval Augmentation for Commonsense Reasoning: A Unified...	18	Experimental	24	—
17	isurulkh/Small-Language-Model SmallDisMed is a fine-tuned GPT-2 model pre-trained on a medical dataset for...	18	Experimental	2	Jupyter Notebook
18	hager51/Chatbot Question Answering System For COVID-19 Questions Using NLP Techniques	16	Experimental	1	Jupyter Notebook
19	Dhanunjaya18/AI-Classroom-Doubt-Detector Developed an AI-powered Classroom Doubt Detection system that analyzes...	14	Experimental	—	HTML
20	MathieuDesponds/Information-extraction-in-official-documents-using-LLMs Assessed MistralAI-7B capabilities for document information extraction while...	10	Experimental	2	Jupyter Notebook
21	hakancangunerli/CitationLLM An LLM that can retrieve and provide LLM answers with Citations at another page.	10	Experimental	2	Python