Open-source machine-learning software

4007 open-source libraries, tools and applications tagged machine-learning, ranked by how closely machine-learning is their primary purpose, then by adoption and maintenance health. Each entry links to a page with sources, use cases and when to choose or avoid it.

4007 products, primary matches first, then adoption-weighted; health v2 shown.

Product	Health v2	Stars	Maturity
TheAlgorithms/Python TheAlgorithms/Python is a comprehensive collection of algorithm implementations written in Python. It serves as an educational resource for…	76	225124	active
tensorflow/tensorflow TensorFlow is an open‑source end‑to‑end platform for building and deploying machine‑learning models. It provides stable Python and C++ APIs…	83	200740	active
Transformers Hugging Face Transformers is a Python library that serves as the model-definition framework for state-of-the-art machine learning models ac…	95	167798	stable
openai/whisper OpenAI's Whisper is a general-purpose speech recognition model and Python library built on a Transformer sequence-to-sequence architecture.…	64	109525	stable
pytorch/pytorch PyTorch is an open-source Python library for tensor computation and deep neural networks with strong GPU acceleration. It provides a dynami…	95	104835	active
karpathy/autoresearch A framework by Andrej Karpathy where AI agents autonomously run LLM research experiments on a single-GPU nanochat training setup. The agent…	45	98112	active
vLLM vLLM is a Python library that provides fast, high‑throughput inference and serving for large language models. It supports advanced features…	98	94014	active
vLLM vLLM is a high-throughput, memory-efficient inference and serving engine for large language models, featuring PagedAttention, continuous ba…	98	94014	active
tensorflow/models The TensorFlow Model Garden is a repository of official and community implementations of state-of-the-art machine learning models built wit…	82	77653	active
hiyouga/LlamaFactory LlamaFactory is an open‑source Python platform that streamlines fine‑tuning, quantization, and inference of over 100 LLM and VLM models. It…	81	75500	active
X Recommendation Algorithm The open-source source code for X's (formerly Twitter) recommendation algorithm, a set of services and jobs that serve personalized feeds o…	46	73957	active
scikit-learn/scikit-learn scikit-learn is a Python module for machine learning built on top of SciPy, providing classification, regression, clustering, and model eva…	88	67403	stable
Keras Keras is a high‑level, multi‑backend deep learning library for Python. It provides a user‑friendly API that works with TensorFlow, JAX, PyT…	96	64373	active
openpilot openpilot is an open-source operating system that provides advanced driver assistance features for supported vehicles. It runs on comma har…	89	63922	active
openpilot openpilot is an open-source operating system for robotics that currently functions as an advanced driver assistance system (ADAS) for 300+ …	89	63922	active
Ultralytics YOLO Ultralytics YOLO is a Python package and CLI providing a family of real-time computer vision models (YOLO26, YOLO11, YOLOv8) for object det…	96	62597	active
Pathway Live Data Framework Pathway is a Python ETL framework designed for stream processing, real-time analytics, and building LLM pipelines. It provides a high‑level…	94	62243	active
RVC-Boss/GPT-SoVITS GPT-SoVITS is a Python-based few-shot voice cloning and text-to-speech system with an integrated WebUI. It supports zero-shot TTS from a 5-…	65	62169	active
karpathy/nanochat nanochat is a minimal, hackable full-stack LLM training harness that covers tokenization, pretraining, finetuning, evaluation, and inferenc…	59	58750	active
Faceswap Faceswap is a free, open-source, multi-platform deepfakes tool that uses deep learning to recognize and swap faces in pictures and videos. …	78	57578	active
face_recognition face_recognition is a Python library that provides simple APIs for detecting, locating, and recognizing human faces in images. It also ship…	59	56796	active
ggml-org/whisper.cpp A high-performance C/C++ port of OpenAI's Whisper automatic speech recognition model with no external dependencies. It supports CPU, GPU (M…	99	54397	stable
LocalAI LocalAI is an open-source, self-hosted AI inference runtime that runs LLMs, vision, speech, image, and video models behind OpenAI/Anthropic…	93	49392	active
Qlib Qlib is an AI-oriented quantitative investment platform from Microsoft that supports the full quant research workflow, from data processing…	66	48694	active
Apache Airflow Apache Airflow is an open-source platform for programmatically authoring, scheduling, and monitoring workflows as directed acyclic graphs (…	98	47148	stable
Milvus Milvus is a high‑performance, cloud‑native vector database designed for scalable approximate nearest neighbor (ANN) search. It provides har…	94	46356	active
Streamlit Streamlit is an open‑source Python framework that turns scripts into interactive web apps with minimal code. It provides a simple API for w…	99	45933	active
Streamlit Streamlit is an open-source Python framework that turns data scripts into interactive web apps in minutes, with widgets, charts, and datafr…	99	45933	stable
VeighNa VeighNa (vn.py) is an open-source Python framework for developing quantitative trading systems, covering strategy development, backtesting,…	83	45695	stable
Apache Spark Apache Spark is a unified analytics engine for large-scale data processing that provides high‑level APIs in Scala, Java, Python, and R. It …	77	44159	active
Apache Spark Apache Spark is a unified analytics engine for large-scale data processing, providing high-level APIs in Scala, Java, Python, and R over an…	77	44159	stable
ray-project/ray Ray is a unified open-source framework for scaling AI and Python applications, consisting of a core distributed runtime (tasks, actors, obj…	99	44057	stable
Gradio Gradio is an open‑source Python library that lets you build interactive web interfaces for machine‑learning models, APIs, or any Python fun…	95	43762	active
Gradio Gradio is an open-source Python library for quickly building web-based demos and UIs for machine learning models, APIs, or arbitrary Python…	95	43762	stable
DeepSpeed DeepSpeed is an open‑source deep learning optimization library that enables efficient distributed training and inference of large models. I…	98	43216	active
JustVugg/colibri Colibrì is a pure C inference engine that runs frontier Mixture-of-Experts language models by streaming weights from disk. It provides CLI …	81	42762	active
facebookresearch/faiss Faiss is a C++ library (with Python wrappers) for efficient similarity search and clustering of dense vectors, supporting indexes that scal…	94	41147	stable
BitNet bitnet.cpp is Microsoft's official inference framework for 1-bit large language models (BitNet b1.58), providing optimized CPU kernels with…	62	40295	active
lyogavin/airllm AirLLM is a Python library that enables running extremely large language models on a single low‑VRAM GPU. It achieves this without quantiza…	95	39932	active
Polars Polars is a high-performance DataFrame library written in Rust with bindings for Python, Node.js, R and more. It provides fast, lazy and ea…	92	39857	active
RVC-Project/Retrieval-based-Voice-Conversion-WebUI A WebUI-based framework for training and running retrieval-based voice conversion (RVC) models, letting users clone a voice timbre from as …	77	38553	active
OpenBMB/VoxCPM VoxCPM is a tokenizer-free text-to-speech system built on a diffusion autoregressive architecture that generates continuous speech represen…	74	37924	active
myshell-ai/OpenVoice OpenVoice is a Python library and audio foundation model for instant voice cloning, requiring only a short reference audio clip to replicat…	31	37608	active
HanLP HanLP is a multilingual natural language processing library for Python, offering a wide range of NLP tasks such as tokenization, POS taggin…	77	36510	active
jax-ml/jax JAX is a Python library that provides composable transformations such as automatic differentiation, JIT compilation, and vectorization for …	98	36460	active
Qdrant Qdrant is a high‑performance, open‑source vector similarity search engine and database written in Rust. It provides a production‑ready API …	96	34906	active
facebookresearch/detectron2 Detectron2 is Facebook AI Research's PyTorch-based library for state-of-the-art object detection, instance/panoptic segmentation, and other…	66	34897	stable
huggingface/diffusers Hugging Face Diffusers is a Python library providing state-of-the-art pretrained diffusion models for generating images, videos, and audio …	95	34736	stable
google-research/timesfm TimesFM is a pretrained decoder‑only foundation model for time‑series forecasting released by Google Research. It provides zero‑shot foreca…	84	34487	active
openai/CLIP OpenAI's CLIP is a PyTorch library providing pretrained contrastive language-image models that encode images and text into a shared embeddi…	62	34362	stable
spaCy spaCy is an industrial-strength natural language processing library for Python and Cython, featuring pretrained pipelines for 70+ languages…	97	33952	stable
tinygrad/tinygrad tinygrad is a small, hackable deep learning framework providing a PyTorch-like tensor library with autograd, plus a visible IR and compiler…	88	33740	active
lutzroeder/netron Netron is a visualizer for neural network, deep learning, and machine learning models, rendering model graphs and layer details. It support…	100	33596	active
xai-org/x-algorithm X-Algorithm is an open-source Rust library that powers the For You feed on X. It combines in‑network and out‑of‑network content, applies fi…	60	33483	active
open-mmlab/mmdetection MMDetection is OpenMMLab's PyTorch-based toolbox and benchmark for object detection and instance/panoptic segmentation. It provides a large…	23	32955	stable
numpy/numpy NumPy is a fundamental Python library that provides powerful N-dimensional array objects and a suite of mathematical functions. It enables …	96	32812	active
Lightning-AI/pytorch-lightning PyTorch Lightning is a deep learning framework that organizes PyTorch code to eliminate boilerplate for training, finetuning, and scaling A…	93	31417	stable
karpathy/llm.c llm.c is a pure C/CUDA implementation for training large language models like GPT-2 and GPT-3, with no dependency on PyTorch or Python. It …	34	31176	active
PythonRobotics PythonRobotics is a collection of Python sample codes and an accompanying textbook that demonstrate a wide range of robotics algorithms. It…	76	30641	active
trycua/cua Cua is an open‑source framework that provides drivers, sandbox environments, and fleet management for AI agents to interact with real deskt…	85	30149	active
JaidedAI/EasyOCR EasyOCR is a ready-to-use Python OCR library built on PyTorch that extracts text from images, supporting 80+ languages and popular writing …	44	30080	stable
Genesis World Genesis World is a Python simulation platform for physical AI and robotics that combines a unified multi-physics engine, a photorealistic r…	95	30058	active
modular/modular Modular Platform is an open‑source stack that includes the Mojo systems programming language and the MAX framework for building, optimizing…	90	29847	active
Chroma Chroma is an open‑source data infrastructure that provides fast, scalable vector and full‑text search for AI applications. It can be self‑h…	87	29471	active
XGBoost XGBoost is an optimized, scalable gradient boosting library written in C++ with bindings for Python, R, Java, Scala and other languages. It…	94	28887	active
XGBoost XGBoost is an optimized, scalable gradient boosting library implementing parallel tree boosting (GBDT/GBM) with bindings for Python, R, Jav…	94	28887	stable
MLX MLX is an array computation framework for machine learning on Apple silicon, developed by Apple ML research. It offers NumPy-like Python AP…	95	28839	active
deezer/spleeter Spleeter is a Python library for music source separation that provides pretrained TensorFlow models. It can be used via a command‑line inte…	59	28480	active
MLflow MLflow is an open‑source AI engineering platform that supports the full lifecycle of machine‑learning, LLM, and agent applications. It prov…	100	28441	active
MLflow MLflow is an open source AI engineering platform for agents, LLMs, and traditional ML models, providing experiment tracking, model registry…	100	28441	stable
Taichi Taichi Lang is an open-source domain-specific language embedded in Python for high-performance parallel numerical computation, using a JIT …	60	28390	active
LeRobot LeRobot is Hugging Face's PyTorch library for real-world robotics, providing a hardware-agnostic Python interface for controlling robots, a…	90	28232	active
fastai fastai is an open‑source deep learning library built on PyTorch that provides high‑level components for rapid model development. It offers …	92	28224	active
fastai fastai is a deep learning library built on PyTorch that offers high-level components for quickly achieving state-of-the-art results in visi…	92	28224	stable
Stability-AI/generative-models Stability AI's official repository of generative diffusion models, including Stable Diffusion, Stable Video, and SV4D 2.0 for image, video,…	42	27300	active
Apollo Apollo is an open-source autonomous driving platform written in C++. It provides a modular architecture for perception, planning, control, …	54	26853	active
Apollo Apollo is an open-source autonomous driving platform providing a high-performance, modular software stack for developing, testing, and depl…	54	26853	active
Haystack Haystack is an open-source Python AI orchestration framework by deepset for building production-ready LLM applications, agents, and RAG sys…	99	26720	stable
huggingface/open-r1 Open R1 is Hugging Face's fully open reproduction of the DeepSeek-R1 training pipeline, providing scripts for supervised fine-tuning, GRPO …	65	26481	active
shap/shap SHAP (SHapley Additive exPlanations) is a Python library that provides game‑theoretic explanations for the predictions of any machine‑learn…	92	25783	active
SYSTRAN/faster-whisper A fast reimplementation of OpenAI's Whisper speech-to-text model built on the CTranslate2 inference engine, offering up to 4x speedup and l…	52	25631	active
lucidrains/vit-pytorch A PyTorch library implementing the Vision Transformer (ViT) and dozens of ViT variants (NaViT, MaxViT, MobileViT, Dino, masked autoencoders…	87	25551	active
mxgmn/WaveFunctionCollapse A C# implementation of the Wave Function Collapse algorithm that generates bitmaps and tilemaps locally similar to a single example input, …	52	25341	stable
danielgatis/rembg Rembg is a Python tool for removing image backgrounds using U2Net-based deep learning models. It can be used as a CLI, Python library, HTTP…	98	25016	active
m-bain/whisperX WhisperX is a Python library providing fast automatic speech recognition with word-level timestamps and speaker diarization. It combines Wh…	92	24736	active
graphdeco-inria/gaussian-splatting The official reference implementation of 3D Gaussian Splatting, a method for real-time radiance field rendering that reconstructs scenes fr…	47	24196	active
PaddlePaddle PaddlePaddle is an open‑source deep learning platform that provides a unified framework for model development, training, and inference. It …	92	24105	active
PaddlePaddle PaddlePaddle is an industrial-grade deep learning framework written in C++ with Python APIs, supporting high-performance single-machine and…	92	24105	active
PyTorch Geometric PyTorch Geometric (PyG) is a Python library built on top of PyTorch for building and training Graph Neural Networks. It provides a unified …	78	24098	active
PyTorch Geometric PyG (PyTorch Geometric) is a Python library built on PyTorch for writing and training Graph Neural Networks on structured and irregular dat…	78	24098	stable
pytorch/examples A curated collection of short, high‑quality PyTorch example projects covering vision, text, reinforcement learning, and more. The repositor…	46	24052	active
deepseek-ai/DeepSeek-OCR DeepSeek-OCR is an open vision-language model from DeepSeek AI that researches 'contexts optical compression' - encoding long text contexts…	43	23965	active
PrefectHQ/prefect Prefect is an open‑source Python library for building, scheduling, and monitoring resilient data pipelines. It provides a simple, Pythonic …	92	23921	active
verl-project/verl Verl is a flexible, efficient, and production‑ready reinforcement learning library for large language models. It provides a modular API to …	84	23828	active
facebookresearch/audiocraft A PyTorch library from Meta for audio processing and generation with deep learning, featuring the EnCodec neural audio codec and generative…	58	23699	active
Bend Bend is a fast, parallel programming language with built‑in dependent types and proof checking. It compiles to native CPU and GPU code and …	95	23454	active
mlc-ai/mlc-llm MLC LLM is a machine learning compiler and high-performance deployment engine for large language models, built on TVM-based ML compilation.…	61	23176	active
pgvector pgvector is an open-source PostgreSQL extension that adds vector data types and vector similarity search, supporting exact and approximate …	76	23171	active
spmallick/learnopencv LearnOpenCV is a repository of C++ and Python code examples for computer vision, deep learning, and AI. It provides ready‑to‑run notebooks …	96	23170	active
marimo marimo is a reactive Python notebook that stores notebooks as pure .py files, enabling reproducible, git‑friendly workflows. It provides an…	90	22981	active