Open-source data-science software

1215 open-source libraries, tools and applications tagged data-science, ranked by how closely data-science 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.

1215 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
OpenBB OpenBB's Open Data Platform (ODP) is an open-source Python toolset that integrates proprietary, licensed, and public financial data sources…	85	73550	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
K-Dense-AI/scientific-agent-skills Scientific Agent Skills is a Python library that provides a collection of validated procedural skills and access to over 100 scientific dat…	80	52679	active
pandas pandas is a Python library that provides fast, flexible, and expressive data structures for labeled data. It is widely used for data cleani…	94	49994	active
pandas pandas is a fast, flexible Python library providing labeled data structures like the DataFrame for practical, real-world data analysis and …	94	49994	stable
Qlib Qlib is an AI‑oriented quantitative investment platform written in Python. It provides end‑to‑end tools for data preparation, model trainin…	66	48694	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
VeighNa VeighNa (vn.py) is an open-source Python framework for developing quantitative trading systems, covering strategy development, backtesting,…	83	45695	stable
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
Polars Polars is an extremely fast analytical query engine for DataFrames written in Rust, with multi-threaded vectorized execution, lazy query op…	92	39857	stable
immutable-js/immutable-js Immutable.js is a JavaScript library that provides persistent immutable collection types such as List, Map, Set, and Record. It enables eff…	96	33026	active
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
XGBoost XGBoost is an optimized, scalable gradient boosting library implementing parallel tree boosting (GBDT/GBM) with bindings for Python, R, Jav…	94	28887	stable
TanStack/table TanStack Table is a headless, framework-agnostic TypeScript library for building highly customizable tables and data grids. It provides sta…	91	28472	active
Apache Flink Apache Flink is an open-source distributed stream processing framework for stateful computations over unbounded and bounded data streams, w…	77	26413	stable
ranaroussi/yfinance yfinance is a Python library that fetches financial and market data from Yahoo! Finance's publicly available APIs, returning data as pandas…	95	25373	stable
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
AKShare AKShare is a Python library that provides a simple, unified interface to fetch a wide range of financial data from many sources. It aims to…	93	22831	active
Airbyte Airbyte is an open-source data movement platform providing 600+ connectors for replicating data from APIs, databases, and files into wareho…	77	22234	active
huggingface/datasets 🤗 Datasets is a Python library that provides one‑line loading of thousands of public datasets and powerful tools for preprocessing and stre…	99	22061	active
recommenders-team/recommenders A Python library and collection of Jupyter notebooks with best practices for building, evaluating, and operationalizing recommendation syst…	66	21919	active
samber/lo samber/lo is a Lodash-style utility library for Go 1.18+ built on generics, providing 300+ type-safe helpers for slices, maps, strings, cha…	82	21433	stable
quantopian/zipline Zipline is an open‑source Python library for event‑driven algorithmic trading and backtesting. It provides a framework to write, test, and …	23	20116	active
fengdu78/lihang-code A collection of Jupyter Notebook implementations of the algorithms described in Li Hang's "Statistical Learning Methods" textbook. The repo…	76	19606	active
bbfamily/abu AbuQuant is an open‑source Python framework for quantitative and algorithmic trading. It provides tools for backtesting, data analysis, and…	48	18866	active
Qbot Qbot is an AI-powered quantitative investment platform that enables automated trading strategies with local deployment. It provides tools f…	51	18568	active
Qbot Qbot is an AI-powered automated quantitative investment and trading research platform that runs fully locally. It combines machine learning…	51	18568	active
emirpasic/gods GoDS is a Go library implementing a wide range of data structures including lists, sets, stacks, maps, trees, and queues, with iterators, c…	24	17459	stable
alibaba/DataX DataX is Alibaba's open-source offline data synchronization framework, the open version of Alibaba Cloud DataWorks data integration. It syn…	60	17364	stable
apache/arrow Apache Arrow is a language-independent columnar in-memory data format specification plus multi-language libraries (C++, Python/PyArrow, Jav…	95	17212	stable
jaakkopasanen/AutoEq AutoEq is a Python library and web application for automatically generating parametric equalizer settings from headphone frequency response…	43	16348	active
KindXiaoming/pykan Pykan is a Python library implementing Kolmogorov-Arnold Networks (KANs), an alternative to multi-layer perceptrons with learnable activati…	16	16331	active
jupyter/jupyter The Jupyter metapackage, a Python package that installs the core Jupyter ecosystem (notebook interfaces, console, kernels infrastructure) a…	70	15354	stable
SciPy SciPy is an open-source Python library providing fundamental algorithms for scientific computing, including optimization, integration, inte…	93	15123	stable
Optuna Optuna is an open-source Python hyperparameter optimization framework with a define-by-run API for dynamically constructing search spaces. …	93	14894	active
microsoft/RD-Agent RD-Agent is a Microsoft open-source framework that uses LLM-powered agents to automate research and development processes such as factor mi…	69	14698	active
myhhub/stock InStock is a Python-based stock analysis system for Chinese A-shares and ETFs that captures daily market data, computes technical indicator…	61	14527	active
Dask Dask is a flexible parallel and distributed computing library for Python that scales pandas, NumPy, scikit-learn, and other PyData tools to…	96	13934	stable
Data-Centric-AI-Community/fg-data-profiling A Python library that generates one-line data quality profiling and exploratory data analysis reports for Pandas and Spark DataFrames. It p…	91	13719	active
goldmansachs/gs-quant GS Quant is a Python toolkit for quantitative finance built by Goldman Sachs quants on top of their risk transfer platform. It supports der…	95	13199	stable
cupy/cupy CuPy is a NumPy/SciPy-compatible array library for GPU-accelerated computing with Python, running on NVIDIA CUDA or AMD ROCm. It acts as a …	92	12362	stable
OpenRefine OpenRefine is a free, open-source desktop application (running a local web server accessed via browser) for cleaning, transforming, and enr…	87	12016	stable
fivetran/great_expectations Great Expectations (GX Core) is a Python library for validating, documenting, and profiling data using declarative, human-readable assertio…	95	11871	active
cleanlab Cleanlab is a Python library for data-centric AI that automatically detects issues in ML datasets, such as label errors, outliers, duplicat…	56	11692	stable
statsmodels/statsmodels Statsmodels is a Python library providing classes and functions for estimating statistical models, conducting hypothesis tests, and explori…	85	11662	stable
QUANTAXIS QUANTAXIS is a Python quantitative finance framework providing local data fetching, backtesting, simulated and live trading, visualization,…	66	11252	active
je-suis-tm/quant-trading A collection of Python scripts implementing quantitative and algorithmic trading strategies, including technical indicator strategies (MACD…	68	11054	active
Kedro Kedro is an open-source Python framework for building production-ready data engineering and data science pipelines using software engineeri…	95	11028	stable
doccano Doccano is an open-source, web-based text annotation tool for building labeled datasets for machine learning. It supports text classificati…	60	10794	active
autogluon/autogluon AutoGluon is an AutoML library that automates machine learning on tabular data, time series, text, and images with just a few lines of Pyth…	93	10766	active
simonlin1212/a-stock-data A self-contained Skill file (structured Markdown with embedded Python) that aggregates China A-share market data from 19 sources into 54 re…	80	10617	active
Turfjs/turf Turf is a modular geospatial engine written in JavaScript and TypeScript for spatial analysis. It provides traditional spatial operations, …	91	10501	stable
modin-project/modin Modin is a drop-in replacement for pandas that scales DataFrame operations across all CPU cores using Ray, Dask, or Unidist as execution en…	61	10389	active
sktime sktime is a unified Python framework for machine learning with time series, offering 500+ models behind a single scikit-learn-compatible AP…	98	10062	stable
TPOT TPOT (Tree-based Pipeline Optimization Tool) is a Python automated machine learning library that optimizes scikit-learn machine learning pi…	40	10053	active
johnkerl/miller Miller (mlr) is a command-line tool like awk, sed, cut, join, and sort but designed for name-indexed data such as CSV, TSV, JSON, JSON Line…	94	10044	stable
yzhao062/pyod PyOD is the most comprehensive Python library for anomaly detection, offering 60+ detectors across tabular, time series, graph, text, image…	96	10026	stable
PyCaret PyCaret is an open-source, low-code AutoML library for Python that wraps scikit-learn to automate training, tuning, and comparison of model…	79	9846	active
NVIDIA/cudf cuDF is a GPU-accelerated DataFrame library for tabular data processing, part of NVIDIA's RAPIDS suite. It provides a pandas-compatible Pyt…	95	9780	stable
PyMC PyMC is a Python library for Bayesian statistical modeling and probabilistic programming, built on PyTensor. It provides intuitive model sp…	96	9774	stable
unit8co/darts Darts is a Python library for user-friendly time series forecasting and anomaly detection. It provides a unified scikit-learn-like fit/pred…	92	9533	active
blue-yonder/tsfresh tsfresh is a Python package that automatically extracts hundreds of features from time series using algorithms from statistics, signal proc…	74	9470	stable
VisiData VisiData is a terminal-based interactive spreadsheet multitool for exploring, cleaning, and arranging tabular data. It supports many format…	83	9398	stable
ML.NET ML.NET is an open-source, cross-platform machine learning framework for .NET that lets developers build, train, and deploy custom ML models…	78	9356	active
apache/iceberg Apache Iceberg is a high-performance open table format for huge analytic datasets, bringing SQL table reliability to big data lakes. This r…	94	9322	stable
CatBoost CatBoost is an open-source gradient boosting on decision trees library developed by Yandex, offering high-quality classification, regressio…	82	9133	stable
bayesian-optimization/BayesianOptimization A pure Python library implementing Bayesian global optimization using Gaussian processes. It finds the maximum of expensive, unknown black-…	94	8720	stable
apache/beam Apache Beam is an open-source unified programming model and SDK set (Java, Python, Go, SQL, TypeScript) for defining batch and streaming da…	95	8688	stable
LC044/WeChatMsg WeChatMsg (留痕/MemoTrace) is a desktop application built with PyQt that extracts, exports, and preserves WeChat chat history on a user's own…	55	42101	maintenance
Gonum Gonum is a suite of numerical and scientific computing libraries for Go, covering matrices and linear algebra, statistics and probability, …	73	8441	active
py-why/dowhy DoWhy is a Python library for causal inference that supports explicit modeling and testing of causal assumptions. It unifies causal graphic…	72	8335	stable
lmcinnes/umap UMAP is a Python library implementing Uniform Manifold Approximation and Projection, a non-linear dimensionality reduction technique usable…	86	8281	stable
OpenDCAI/DataFlow DataFlow is a Python framework for preparing, cleaning, and synthesizing data for LLM training and RAG using composable LLM-based operators…	77	8201	active
PriorLabs/TabPFN TabPFN is a pre-trained tabular foundation model (transformer) that performs classification, regression, forecasting, and anomaly detection…	96	8048	active
evidentlyai/evidently Evidently is an open-source Python framework for evaluating, testing, and monitoring ML and LLM-powered systems, with 100+ built-in metrics…	97	7984	active
MaartenGr/BERTopic BERTopic is a Python library for topic modeling that leverages transformer-based sentence embeddings and class-based TF-IDF (c-TF-IDF) to d…	75	7902	stable
pythonstock/stock A full-stack stock analysis system built in Python using pandas, akshare, bokeh, stockstats, ta-lib, and tornado, deployed via Docker and d…	56	7882	active
alteryx/featuretools Featuretools is an open-source Python library for automated feature engineering, using Deep Feature Synthesis (DFS) to generate features fr…	65	7687	active
ranaroussi/quantstats QuantStats is a Python library for portfolio analytics that computes performance and risk metrics like Sharpe ratio, volatility, and drawdo…	79	7658	stable
sngyai/Sequoia-X Sequoia-X is a Python-based quantitative stock screening system for China's A-share market that scans ~5200 stocks daily for technical patt…	70	7638	active
H2O H2O-3 is an open-source, distributed, in-memory machine learning platform implementing algorithms such as GLM, GBM/XGBoost, Random Forest, …	75	7509	stable
Enso Analytics Enso Analytics is a self-service data preparation and analysis platform for data teams, built on a hybrid visual/textual functional program…	84	7442	active
Feast Feast is an open-source feature store for machine learning that manages offline stores for historical training data and low-latency online …	99	7327	stable
XBuilderLAB/cheat-on-content A Python-based agent skill that turns content creation into a calibrated prediction workflow: score each post, blind-predict its performanc…	58	7200	active
datajuicer/data-juicer Data-Juicer is a Python library and data processing system for cleaning, deduplicating, synthesizing, and analyzing data for foundation mod…	94	7132	active
scikit-learn-contrib/imbalanced-learn imbalanced-learn is a Python library offering re-sampling techniques (over-sampling, under-sampling, and combinations) for datasets with st…	76	7120	stable
wbh604/UZI-Skill UZI-Skill is a Python-based AI agent skill/plugin that performs deep stock analysis for A-share, Hong Kong, and US markets using 22 data di…	73	7083	active
DeepChem DeepChem is a Python library that democratizes deep learning for drug discovery, quantum chemistry, materials science, and biology. It prov…	63	7050	active
NicolasHug/Surprise Surprise is a Python scikit for building and analyzing recommender systems that work with explicit rating data. It provides ready-to-use pr…	67	6817	stable
ibis-project/ibis Ibis is a portable Python dataframe library that provides a single lazy dataframe API across more than 20 execution backends including Duck…	87	6676	active
scikit-image scikit-image is a Python library providing a collection of peer-reviewed image processing algorithms built on NumPy and SciPy. It offers ro…	79	6606	stable
ecrmnn/collect.js A dependency-free JavaScript library providing a fluent, Laravel Collections-style API for working with arrays and nested objects. It offer…	32	6554	stable
cloudquery/cloudquery CloudQuery is an open-source CLI and plugin-based data pipeline tool that extracts cloud infrastructure configuration and security data fro…	95	6542	active
YunYouJun/cook A web application that helps users find Chinese recipes based on limited ingredients at home, with recipe data sourced from Feishu spreadsh…	63	6514	active
apache/flink-cdc Flink CDC is a distributed streaming data integration tool built on Apache Flink that captures change data from databases like MySQL and Po…	79	6482	active
waditu/czsc czsc is a technical analysis library implementing Chan Theory (缠中说禅/缠论) concepts like fractals, strokes, and pivots for stock and futures m…	94	6349	active
Pachyderm Pachyderm is a data-centric pipeline platform that automates data transformations with built-in data versioning and lineage tracking. It ru…	30	6309	active
Open-Meteo Open-Meteo is an open-source weather API service that aggregates numerical weather prediction models from 15+ national weather services int…	85	6244	active