Name	CI	OS	Notes
scikit-learn			The machine learning library. A complex but clean config using many of cibuildwheel's features to build a large project with Cython and C++ extensions.
pytorch-fairseq			Facebook AI Research Sequence-to-Sequence Toolkit written in Python.
NumPy			The fundamental package for scientific computing with Python.
duckdb			DuckDB is an analytical in-process SQL database management system
Tornado			Tornado is a Python web framework and asynchronous networking library. Uses stable ABI for a small C extension.
NCNN			ncnn is a high-performance neural network inference framework optimized for the mobile platform
Matplotlib			The venerable Matplotlib, a Python library with C++ portions
Prophet			Tool for producing high quality forecasts for time series data that has multiple seasonality with linear or non-linear growth.
MyPy			The compiled version of MyPy using MyPyC.
Kivy			Open source UI framework written in Python, running on Windows, Linux, macOS, Android and iOS
Triton			Self hosted runners
MemRay			Memray is a memory profiler for Python
uvloop			Ultra fast asyncio event loop.
psutil			Cross-platform lib for process and system monitoring in Python
Google Benchmark			A microbenchmark support library
vaex			Out-of-Core hybrid Apache Arrow/NumPy DataFrame for Python, ML, visualization and exploration of big tabular data at a billion rows per second 🚀
Apache Beam			Apache Beam is a unified programming model for Batch and Streaming data processing.
PyGame			🐍🎮 pygame (the library) is a Free and Open Source python programming language library for making multimedia applications like games built on top of the excellent SDL library. C, Python, Native, OpenGL.
asyncpg			A fast PostgreSQL Database Client Library for Python/asyncio.
cmake			Multitagged binary builds for all supported platforms, using cibw 2 config configuration.
scikit-image			Image processing library. Uses cibuildwheel to build and test a project that uses Cython with platform-native code.
twisted-iocpsupport			A submodule of Twisted that hooks into native C APIs using Cython.
PyOxidizer			A modern Python application packaging and distribution tool
cvxpy			A Python-embedded modeling language for convex optimization problems.
pedalboard			A Python library for working with audio data and audio plugins by wrapping the JUCE C++ framework. Uses cibuildwheel to deploy on as many operating systems and Python versions as possible with only one dependency (any NumPy).
websockets			Library for building WebSocket servers and clients. Mostly written in Python, with a small C 'speedups' extension module.
River			🌊 Online machine learning in Python
UltraJSON			Ultra fast JSON decoder and encoder written in C with Python bindings
aiortc			WebRTC and ORTC implementation for Python using asyncio.
OpenSpiel			OpenSpiel is a collection of environments and algorithms for research in general reinforcement learning and search/planning in games.
Dependency Injector			Dependency injection framework for Python, uses Windows TravisCI
pyzmq			Python bindings for zeromq, the networking library. Uses Cython on CPython and CFFI on PyPy. ARM wheels for linux are built natively on CircleCI.
Implicit			Includes GPU support for linux wheels
CTranslate2			Includes libraries from the Intel oneAPI toolkit and CUDA kernels compiled for multiple GPU architectures.
tinyobjloader			Tiny but powerful single file wavefront obj loader
vispy			Main repository for Vispy
coverage.py			The coverage tool for Python
PyCryptodome			A self-contained cryptographic library for Python
Line Profiler			Line-by-line profiling for Python
PyYAML			Canonical source repository for PyYAML
PyAV			Pythonic bindings for FFmpeg's libraries.
numexpr			Fast numerical array expression evaluator for Python, NumPy, Pandas, PyTables and more
pikepdf			A Python library for reading and writing PDF, powered by QPDF
h5py			HDF5 for Python -- The h5py package is a Pythonic interface to the HDF5 binary data format.
Wrapt			A Python module for decorators, wrappers and monkey patching.
envd			A machine learning development environment build tool
OpenColorIO			A color management framework for visual effects and animation.
Psycopg 3			A modern implementation of a PostgreSQL adapter for Python
aioquic			QUIC and HTTP/3 implementation in Python
SimpleJSON			simplejson is a simple, fast, extensible JSON encoder/decoder for Python
ruptures			Extensive Cython + NumPy pyproject.toml example.
OpenTimelineIO			Open Source API and interchange format for editorial timeline information.
PyTables			A Python package to manage extremely large amounts of data
google neuroglancer			WebGL-based viewer for volumetric data
Parselmouth			A Python interface to the Praat software package, using pybind11, C++17 and CMake, with the core Praat static library built only once and shared between wheels.
DeepForest			An Efficient, Scalable and Optimized Python Framework for Deep Forest (2021.2.1)
AutoPy			Includes a Windows Travis build.
H3-py			Python bindings for H3, a hierarchical hexagonal geospatial indexing system
mosec			A machine learning model serving framework powered by Rust
time-machine			Time mocking library using only the CPython C API.
Picologging			A high-performance logging library for Python.
markupsafe			Safely add untrusted strings to HTML/XML markup.
Rtree			Rtree: spatial index for Python GIS
pybind11 cmake_example			Example pybind11 module built with a CMake-based build system
KDEpy			Kernel Density Estimation in Python
dd-trace-py			Uses custom alternate arch emulation on GitHub
tgcalls			Python pybind11 binding to Telegram's WebRTC library with third party dependencies like OpenSSL, MozJPEG, FFmpeg, etc.
python-rapidjson			Python wrapper around rapidjson
pybind11 python_example			Example pybind11 module built with a Python-based build system
python-snappy			Python bindings for the snappy google library
sourmash			Quickly search, compare, and analyze genomic and metagenomic data sets.
abess			A fast best-subset selection library. It uses cibuildwheel to build a large project with C++ extensions.
cyvcf2			cython + htslib == fast VCF and BCF processing
jq.py			Python bindings for jq
matrixprofile			A Python 3 library making time series data mining tasks, utilizing matrix profile algorithms, accessible to everyone.
iminuit			Jupyter-friendly Python interface for C++ MINUIT2
Tokenizer			Fast and customizable text tokenization library with BPE and SentencePiece support
keyvi			FST based key value index highly optimized for size and lookup performance, utilizes ccache action for improved runtime
pillow-heif			Bindings to libheif library with third party dependencies. Fully automated CI for tests and publishing including Apple Silicon builds.
PyGLM			Fast OpenGL Mathematics (GLM) for Python
TgCrypto			Includes a Windows Travis build.
iDynTree			Uses manylinux_2_24
streaming-form-data			Streaming parser for multipart/form-data written in Cython
bx-python			A library that includes Cython extensions.
power-grid-model			Python/C++ library for distribution power system analysis
boost-histogram			Supports full range of wheels, including PyPy and alternate archs.
pybase64			Fast Base64 encoding/decoding in Python
Python-WebRTC			a Python extension that provides bindings to WebRTC M92
Confluent client for Kafka			setup in tools/wheels/build-wheels.bat
Imagecodecs (fork)			Over 20 external dependencies in compiled libraries, custom docker image, libomp, openblas and install_name_tool for macOS.
fathon			python package for DFA (Detrended Fluctuation Analysis) and related algorithms
pybind11 scikit_build_example			An example combining scikit-build and pybind11
Arbor			Arbor is a multi-compartment neuron simulation library; compatible with next-generation accelerators; best-practices applied to research software; focused on community-driven development. Includes a small script patching rpath in bundled libraries.
polaroid			Full range of wheels for setuptools rust, with auto release and PyPI deploy.
clang-format			Scikit-build wrapper around LLVM's CMake, all platforms, generic wheels.
etebase-py			Python bindings to a Rust library using setuptools-rust, and sccache for improved speed.
cf-units			Units of measure as required by the Climate and Forecast (CF) Metadata Conventions
ninja			Multitagged binary builds for all supported platforms, using cibw 2 config configuration.
numpythia			The interface between PYTHIA and NumPy
pyjet			The interface between FastJet and NumPy
ril			A python binding to Rust Imaging library using maturin and Pyo3, utilizes Github Action cache to improve speed. Builds abi3 wheels.
SiPM			High performance library for SiPM detectors simulation using C++17, OpenMP and AVX2 intrinsics.
GSD			Cython and NumPy project with 64-bit wheels.
aalink			Async Python interface for Ableton Link.
CorrectionLib			Structured JSON powered correction library for HEP, designed for the CMS experiment at CERN.
xmlstarlet			Python 3.6+ CFFI bindings with true MSVC build.
werpy			An ultra-fast python package using optimized dynamic programming to compute the Word Error Rate (WER).
pyinstrument_cext			A simple C extension, without external dependencies
pybind11 cross build example			Same as pybind11 cmake_example but used to demo Linux ARM + Windows + macOS builds on GitLab

Add your repo here! Let us know on GitHub Discussions, or send a PR, adding your information to docs/data/projects.yml.

^{I'd like to include notes here to indicate why an example might be interesting to cibuildwheel users - the styles/technologies/techniques used in each. Please include that in future additions!}