Recommendation System Frameworks

Complete recommendation system implementations using collaborative filtering, content-based, or deep learning approaches for production use. Does NOT include single-domain applications (e.g., book/movie recommenders), datasets, or general ML libraries without recommendation-specific architectures.

There are 113 recommendation system frameworks tracked. 2 score above 70 (verified tier). The highest-rated is meta-pytorch/torchrec at 82/100 with 2,488 stars. 2 of the top 10 are actively maintained.

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#	Framework	Score	Tier	Stars	Language
1	meta-pytorch/torchrec Pytorch domain library for recommendation systems	82	Verified	2,488	Python
2	recommenders-team/recommenders Best Practices on Recommendation Systems	80	Verified	21,514	Python
3	hongleizhang/RSPapers RSTutorials: A Curated List of Must-read Papers on Recommender System.	61	Established	6,452	—
4	kakao/buffalo TOROS Buffalo: A fast and scalable production-ready open source project for...	60	Established	581	Python
5	google-research/recsim A Configurable Recommender Systems Simulation Platform	59	Established	782	Python
6	RUCAIBox/CRSLab CRSLab is an open-source toolkit for building Conversational Recommender...	59	Established	552	Python
7	lyst/lightfm A Python implementation of LightFM, a hybrid recommendation algorithm.	58	Established	5,066	Python
8	RUCAIBox/RecBole A unified, comprehensive and efficient recommendation library	58	Established	4,307	Python
9	jfkirk/tensorrec A TensorFlow recommendation algorithm and framework in Python.	58	Established	1,303	Python
10	wzhe06/Reco-papers Classic papers and resources on recommendation	57	Established	3,517	Python
11	sisinflab/elliot Comprehensive and Rigorous Framework for Reproducible Recommender Systems Evaluation	57	Established	296	Python
12	MTSWebServices/RecTools RecTools - library to build Recommendation Systems easier and faster than ever before	54	Established	430	Python
13	datawhalechina/fun-rec 推荐系统入门教程，在线阅读地址：https://datawhalechina.github.io/fun-rec/	53	Established	6,830	Python
14	vinta/albedo A recommender system for discovering GitHub repos, built with Apache Spark	53	Established	184	Scala
15	guyulongcs/Awesome-Deep-Learning-Papers-for-Search-Recommendation-Advertising Awesome Deep Learning papers for industrial Search, Recommendation and...	52	Established	2,378	Python
16	zerolovesea/NextRec A unified, efficient, and extensible PyTorch-based recommendation library	52	Established	129	Python
17	fani-lab/OpeNTF Neural machine learning methods for Team Formation/Recommendation problem.	52	Established	27	Jupyter Notebook
18	wubinzzu/NeuRec Next RecSys Library	52	Established	1,064	Python
19	NVIDIA/DeepRecommender Deep learning for recommender systems	51	Established	1,702	Python
20	kang205/SASRec SASRec: Self-Attentive Sequential Recommendation	51	Established	948	Python
21	DeepRec-AI/DeepRec DeepRec is a high-performance recommendation deep learning framework based...	51	Established	1,170	C++
22	cheungdaven/DeepRec An Open-source Toolkit for Deep Learning based Recommendation with Tensorflow.	51	Established	1,165	Python
23	khanhnamle1994/movielens 4 different recommendation engines for the MovieLens dataset.	51	Established	449	Jupyter Notebook
24	wzhe06/SparrowRecSys A Deep Learning Recommender System	51	Established	2,741	Python
25	hexiangnan/neural_collaborative_filtering Neural Collaborative Filtering	51	Established	1,871	Python
26	MaurizioFD/RecSys2019_DeepLearning_Evaluation This is the repository of our article published in RecSys 2019 "Are We...	51	Established	985	Python
27	amitkaps/recommendation Recommendation System using ML and DL	51	Established	522	Jupyter Notebook
28	mquad/sars_tutorial Repository for the tutorial on Sequence-Aware Recommender Systems held at...	50	Established	344	Python
29	HaSai666/rec_pangu rec_pangu is a flexible open-source project for recommendation systems. It...	50	Established	159	Python
30	ibayer/fastFM fastFM: A Library for Factorization Machines	50	Established	1,090	Python
31	google-research/recsim_ng RecSim NG: Toward Principled Uncertainty Modeling for Recommender Ecosystems	49	Emerging	125	Jupyter Notebook
32	GavinHacker/recsys_core [推荐系统] Based on the scoring data set, the recommendation system is built...	49	Emerging	299	Jupyter Notebook
33	ylongqi/openrec OpenRec is an open-source and modular library for neural network-inspired...	49	Emerging	416	Python
34	maciejkula/spotlight Deep recommender models using PyTorch.	48	Emerging	3,043	Python
35	tangxyw/RecAlgorithm 主流推荐系统Rank算法的实现	48	Emerging	284	Python
36	PersiaML/PERSIA High performance distributed framework for training deep learning...	47	Emerging	411	Rust
37	otto-de/recsys-dataset 🛍 A real-world e-commerce dataset for session-based recommender systems research.	47	Emerging	372	Python
38	HKUDS/SSLRec [WSDM'2024 Oral] "SSLRec: A Self-Supervised Learning Framework for Recommendation"	46	Emerging	558	Python
39	daconjam/Recommender-System-Datasets A list of compatible datasets, noting other major repositories containing...	46	Emerging	110	—
40	finn-no/recsys_slates_dataset FINN.no Slate Dataset for Recommender Systems. A dataset containing all...	45	Emerging	54	Python
41	grouplens/samantha Samantha - A generic recommender and predictor server	45	Emerging	88	Java
42	DeepRec-AI/HybridBackend A high-performance framework for training wide-and-deep recommender systems...	45	Emerging	161	C++
43	andreeaiana/newsreclib PyTorch-Lightning Library for Neural News Recommendation	44	Emerging	60	Python
44	Zilize/CRSPapers Conversational Recommender System (CRS) paper list. 对话推荐系统论文列表	44	Emerging	161	—
45	qcymkxyc/RecSys 项亮的《推荐系统实践》的代码实现	43	Emerging	498	Jupyter Notebook
46	yihong-chen/neural-collaborative-filtering pytorch version of neural collaborative filtering	43	Emerging	510	Jupyter Notebook
47	chocoluffy/deep-recommender-system key Deep Learning engineering tricks in recsys	43	Emerging	804	Jupyter Notebook
48	Coder-Yu/QRec QRec: A Python Framework for quick implementation of recommender systems...	43	Emerging	1,642	Python
49	i-Jayus/RecSystem-Pytorch 推荐系统论文算法实现，包括序列推荐，多任务学习，元学习等。 Recommendation system papers...	43	Emerging	255	Python
50	robi56/Deep-Learning-for-Recommendation-Systems This repository contains Deep Learning based articles , paper and...	43	Emerging	2,877	—
51	hexiangnan/neural_factorization_machine TenforFlow Implementation of Neural Factorization Machine	43	Emerging	472	Python
52	USTCLLM/RecStudio A highly-modularized and recommendation-efficient recommendation library...	43	Emerging	198	Python
53	hand10ryo/PyTorchCML PyTorchCML is a library of PyTorch implementations of matrix factorization...	43	Emerging	20	Python
54	CRIPAC-DIG/LATTICE [ACMMM 2021] PyTorch implementation for "Mining Latent Structures for...	42	Emerging	57	Python
55	AstraZeneca/rexmex A general purpose recommender metrics library for fair evaluation.	42	Emerging	276	Python
56	codingforentrepreneurs/recommender Build a recommendation engine using Django & a Machine Learning technique...	42	Emerging	69	Python
57	fuxuemingzhu/Summary-of-Recommender-System-Papers 阅读过的推荐系统论文的归类总结，持续更新中…	42	Emerging	382	—
58	OnYuKang/Recommendation-systems-paperlist Papers about recommendation systems that I am interested in	41	Emerging	365	—
59	fire717/Recommendation-system 推荐系统资料笔记收录/ Everything about Recommendation System. 专题/书籍/论文/产品/Demo	40	Emerging	173	—
60	RecList/reclist Behavioral "black-box" testing for recommender systems	39	Emerging	472	Python
61	mzaradzki/factorization-machine-for-prediction Factorization Machine for regression and classification	39	Emerging	97	Jupyter Notebook
62	orion-orion/CDSRec 🔨 跨域序列推荐（Cross-Domain Sequential...	39	Emerging	28	Python
63	maciejkula/sbr-go Recommender systems for Go	39	Emerging	172	Go
64	jrzaurin/RecoTour A tour through recommendation algorithms in python [IN PROGRESS]	39	Emerging	178	Jupyter Notebook
65	sisinflab/warprec Unifying Academic Rigor and Industrial Scale for Responsible, Reproducible,...	38	Emerging	9	Python
66	Myolive-Lin/RecSys--deep-learning-recommendation-system 深度学习推荐系统(Project based on Wang Zhe’s deep learning recommendation system)	37	Emerging	11	Jupyter Notebook
67	sebsui/JavaRank Recommendation engine in Java. Based on an ALS algorithm (Apache Spark)....	37	Emerging	16	Java
68	sberbank-ai-lab/RePlay RecSys Library	36	Emerging	72	Python
69	alibaba/Dynamic-popularity-aware-recommendation Dynamic popularity-aware contrastive learning for recommendation	36	Emerging	10	Jupyter Notebook
70	ariaattar/CASM-PyTorch PyTorch Implementation of Context-Aware Sequential Model for Multi-Behaviour...	35	Emerging	10	Python
71	npxiaoying/Social-Recommendation Summary of social recommendation papers and codes	35	Emerging	217	—
72	JiaxiWong/MIND-News-RecSys A Deep Interest Network (DIN) implementation for MIND News Recommendation...	35	Emerging	36	Jupyter Notebook
73	cowjen01/repsys Framework for Interactive Evaluation of Recommender Systems	35	Emerging	35	JavaScript
74	creyesp/Awesome-recsys Curated list of recommnedation system topics	35	Emerging	156	—
75	STAR-Laboratory/Accelerating-RecSys-Training Accelerating Recommender model training by leveraging popular choices -- VLDB 2022	34	Emerging	31	Python
76	LienM/recpack GitHub Mirror of RecPack: Experimentation Toolkit for Top-N Recommendation...	33	Emerging	22	Python
77	myui/rtrec An realtime recommendation system supporting online updates	33	Emerging	17	Python
78	hegongshan/Recommender-Systems-Paper Must-read Papers for Recommender Systems (RS)	33	Emerging	158	—
79	aryan-jadon/Evaluation-Metrics-for-Recommendation-Systems This repository contains the implementation of evaluation metrics for...	33	Emerging	27	Python
80	abis330/DSSRec Disentangled Self-Supervision in Sequential Recommenders	32	Emerging	31	Python
81	opensource-together/ost-linker Linker, OST's recommender-system, AI powered.	31	Emerging	20	Python
82	darshil3011/recommendkit Universal & scalable ready-to-use recommendation system with advanced...	31	Emerging	14	Python
83	faithlumumba/2025-tencent-advertising-algorithm-competition-finalist 🎯 Build a winning recommendation system with this effective generative...	31	Emerging	10	Python
84	IndexStorm/git-rec-back Backend code for GitHub Recommendation Extension	30	Emerging	28	Python
85	solidglue/Recommender_System_Inference_Services Large scale recommender system inference Microservices and APIs （Dubbo...	30	Emerging	123	Go
86	Tawhidhere/OneRec-Think 🤖 Enhance recommendations with OneRec-Think, a framework that combines...	30	Emerging	1	Python
87	Anmol-Singh-Jaggi/Recommend :information_desk_person: Implementation of multiple types of recommender systems	30	Emerging	2	Java
88	galafis/recommender-systems-engine Recommender Systems Engine - Professional Python project	29	Experimental	1	Python
89	yqchau/recommender-systems This repository contains several state-of-the-art models of recommender...	29	Experimental	18	Python
90	somjit101/Facebook-Friend-Recommendation This is a friend recommendation systems which are used on social media...	28	Experimental	12	Jupyter Notebook
91	lapshinaaa/recsys-tasks Recommender Systems Tasks	27	Experimental	5	Jupyter Notebook
92	koengommers/news-recommendation PyTorch implementations of several news recommendation methods, created for...	26	Experimental	7	Jupyter Notebook
93	tuanio/AutoRec AutoRec: Autoencoders Meet Collaborative Filtering implementation in PyTorch	26	Experimental	9	Jupyter Notebook
94	klevis/onlineRetailRecommender Online Retail Recommender JAVA Application using implicit feedback with...	25	Experimental	5	Java
95	klevis/booksRecommenderWithAutocomplete Recommender System for large data sets using Tries	23	Experimental	2	Java
96	galafis/Recommendation-Engine Professional project by Gabriel Demetrios Lafis	23	Experimental	1	Python
97	colorblank/RecJourney recommendation system models and notes	23	Experimental	7	Python
98	Luuk99/PD-Rec Research into personalized levels of diversity in news recommendation. MSc...	23	Experimental	4	Python
99	Rimuru1129/ALS_Algorithm 🔍 Analyze large datasets using the ALS algorithm for predictive modeling and...	22	Experimental	—	Python
100	VladPrytula/ecom-ir-book Personal notes and code on modern recommendation and search systems. From...	21	Experimental	7	Jupyter Notebook
101	dmhyun/PERIS Official code of Beyond Learning from Next Item: Sequential Recommendation...	18	Experimental	36	Python
102	Rodrigolara05/Machine-Learning-en-una-red-P2P Sistema de recomendacion con Machine Learning en una red P2P	18	Experimental	2	Go
103	AlmightyPeanut/VideoMisinformationRecommendation Benchmarking 15 recommendation algorithms for misinformation prevalence in...	15	Experimental	1	Python
104	somerandomprogramer/Deep-Learning-For-Recommender-Systems 🤖 Build personalized recommendations using deep learning by analyzing user...	14	Experimental	—	—
105	deryarditya/TailorRec 🎨 Transform user behavior into personalized creative content with TailorRec,...	14	Experimental	—	Python
106	jahanzaibshah234/Unsupervised-Learning-Recommenders-Reinforcement-Learning A hands-on journey through advanced machine learning topics including...	14	Experimental	—	Python
107	redoh/recommendation-engine 🎯 ML-powered recommendation engine with collaborative and content-based filtering	13	Experimental	—	—
108	NiharJani2002/Unsupervised-Learning-Recommenders-Reinforcement-Learning Unsupervised Learning, Recommenders, Reinforcement Learning	13	Experimental	—	Jupyter Notebook
109	haniehm26/rl-based-news-rs News Recommender System based on an Online Reinforcement Learning Model	13	Experimental	13	Python
110	Gbolahan-Aziz/Recommender_Systems A repository for Tensorflow TFRS models	12	Experimental	7	Jupyter Notebook
111	georgezoto/recommender-systems-in-python A collection of Jupyter notebooks on articles and material online related to...	12	Experimental	5	HTML
112	davidecapone/WeightedMatrixFactorizationModel Weighted Matrix Factorization model for a Recommender System	11	Experimental	—	Jupyter Notebook
113	ankh77sb/A-Comprehensive-Review-on-Hashtag-Recommendation Summary of papers covered in survey - A Comprehensive Review on Hashtag...	10	Experimental	2	—

Comparisons in this category

recommenders and fun-rec (80 vs 53) recommenders and Reco-papers (80 vs 57) recommenders and elliot (80 vs 57) RecBole and NextRec (58 vs 52) torchrec and tensorrec (82 vs 58) torchrec and RecTools (82 vs 54) torchrec and NextRec (82 vs 52) RecTools and NextRec (54 vs 52)