c-plus-plus — open-source software health

npm

88Excellenthealth index

electron/electron

:electron: Build cross-platform desktop apps with JavaScript, HTML, and CSS

C++ · TypeScript★ 122.1K↓ 19.2M/moJul 17, 2026

MITJul 17, 2026 · metrics 1.13.0

npm

87Excellenthealth index

atom/atom-shell

:electron: Build cross-platform desktop apps with JavaScript, HTML, and CSS

C++ · TypeScript★ 122KJul 16, 2026

MITJul 16, 2026 · metrics 1.13.0

npm

87Excellenthealth index

atom/electron

:electron: Build cross-platform desktop apps with JavaScript, HTML, and CSS

C++ · TypeScript★ 122.1KJul 18, 2026

MITJul 18, 2026 · metrics 1.13.0

PyPI

83Goodhealth index

Slicer/Slicer

Multi-platform, free open source software for visualization and image computing.

C++ · Python★ 2,541Jul 21, 2026

Custom licenseJul 21, 2026 · metrics 1.13.0

npm · PyPI

83Goodhealth index

dennisosrm/project-osrm

Open Source Routing Machine - C++ backend

C++ · Gherkin★ 7,900Jul 17, 2026

BSD-2-ClauseJul 17, 2026 · metrics 1.13.0

Maven

82Goodhealth index

fmtlib/fmt

A modern formatting library

C++★ 23.7KJul 21, 2026

MITJul 21, 2026 · metrics 1.13.0

PyPI

81Goodhealth index

scikit-build/cmake-python-distributions

This project provides the infrastructure to build CMake Python wheels.

Python · CMake★ 135↓ 17.2M/moJul 17, 2026

Apache-2.0Jul 17, 2026 · metrics 1.13.0

PyPI

80Goodhealth index

QMCPACK/qmcpack

Main repository for QMCPACK, an open-source production level many-body ab initio Quantum Monte Carlo code for computing the electronic structure of atoms, molecules, and solids with full performance portable GPU support

C++ · Python★ 394Jul 21, 2026

Custom licenseJul 21, 2026 · metrics 1.13.0

PyPI · npm

80Goodhealth index

google/mediapipe

Cross-platform, customizable ML solutions for live and streaming media.

C++★ 36.1K↓ 2.8M/moJul 15, 2026

Apache-2.0Jul 15, 2026 · metrics 1.13.0

npm · crates.io

79Goodhealth index

versatica/mediasoup

Cutting Edge WebRTC Video Conferencing

C++ · Rust · TypeScript★ 7,310↓ 158K/moJul 17, 2026

ISCJul 17, 2026 · metrics 1.13.0

PyPI

75Goodhealth index

scikit-build/scikit-build

Improved build system generator for CPython C, C++, Cython and Fortran extensions

Python · CMake★ 534↓ 1.2M/moJul 21, 2026

Custom licenseJul 21, 2026 · metrics 1.13.0

PyPI

72Goodhealth index

arborx/ArborX

Performance-portable geometric search library

C++★ 236Jul 21, 2026

BSD-3-ClauseJul 21, 2026 · metrics 1.13.0

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72Goodhealth index

jrouwe/JoltPhysics

A multi core friendly rigid body physics and collision detection library. Written in C++. Suitable for games and VR applications. Used by Horizon Forbidden West and Death Stranding 2.

C++★ 11KJul 21, 2026

MITJul 21, 2026 · metrics 1.13.0

PyPI

71Goodhealth index

jpype-project/jpype

JPype is cross language bridge to allow Python programs full access to Java class libraries.

Python · C++ · Java★ 1,284Jul 21, 2026

Apache-2.0Jul 21, 2026 · metrics 1.13.0

PyPI

71Goodhealth index

scikit-build/ninja-python-distributions

This project provides the infrastructure to build Ninja Python wheels.

Python★ 89Jul 18, 2026

Apache-2.0Jul 18, 2026 · metrics 1.13.0

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69Moderatehealth index

AliceO2Group/AliceO2

O2 software project for the ALICE experiment at CERN

C++★ 124Jul 20, 2026

GPL-3.0Jul 20, 2026 · metrics 1.13.0

crates.io · npm

67Moderatehealth index

COMBINE-lab/salmon

🐟 🍣 🍱 Highly-accurate & wicked fast transcript-level quantification from RNA-seq reads using selective alignment

Rust★ 918Jul 16, 2026

BSD-3-ClauseJul 16, 2026 · metrics 1.13.0

NuGet

66Moderatehealth index

cefsharp/CefSharp

.NET (WPF and Windows Forms) bindings for the Chromium Embedded Framework

C#★ 10.2KJul 18, 2026

Custom licenseJul 18, 2026 · metrics 1.13.0

—

62Moderatehealth index

nrf24/rf24network

OSI Layer 3 Networking for nRF24L01(+) and nRF52x on Arduino and Raspberry Pi

C++ · CMake★ 383↓ 0/moJul 14, 2026

GPL-2.0Jul 14, 2026 · metrics 1.13.0

PyPI

61Moderatehealth index

thelartians/cpm

📦 CMake's missing package manager. A small CMake script for setup-free, cross-platform, reproducible dependency management.

CMake · Ruby★ 4,058Jul 17, 2026

MITJul 17, 2026 · metrics 1.13.0

—

60Moderatehealth index

volkszaehler/vzlogger

Logging utility for various meters & sensors

C++ · CMake★ 166Jul 22, 2026

GPL-3.0Jul 22, 2026 · metrics 1.13.0

—

59Moderatehealth index

dlidstrom/Duplo

Duplicates finder for various source code formats.

C++★ 128Jul 22, 2026

GPL-2.0Jul 22, 2026 · metrics 1.13.0

PyPI

57Moderatehealth index

GalSim-developers/GalSim

The modular galaxy image simulation toolkit. Documentation:

Python · C++★ 271Jul 21, 2026

Custom licenseJul 21, 2026 · metrics 1.13.0

PyPI

57Moderatehealth index

jrfonseca/gprof2dot

Converts profiling output to a dot graph.

Python★ 3,453↓ 5.6M/moJul 18, 2026

LGPL-3.0Jul 18, 2026 · metrics 1.13.0

PyPI

56Moderatehealth index

spotify/annoy

Approximate Nearest Neighbors in C++/Python optimized for memory usage and loading/saving to disk

C++ · Python · Lua★ 14.3K↓ 1.2M/moJul 21, 2026

Apache-2.0Jul 21, 2026 · metrics 1.13.0

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53Moderatehealth index

tlk00/BitMagic

BitMagic Library

C++★ 454Jul 19, 2026

Custom licenseJul 19, 2026 · metrics 1.13.0

—

52Moderatehealth index

beached/header_libraries

Various header libraries mostly future std lib, replacements for(e.g. visit), or some misc

C++★ 27Jul 19, 2026

Custom licenseJul 19, 2026 · metrics 1.13.0

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51Moderatehealth index

lczech/genesis

A library for working with phylogenetic and population genetic data.

C++★ 67↓ 0/moJul 14, 2026

GPL-3.0Jul 14, 2026 · metrics 1.13.0

PyPI

51Moderatehealth index

svenevs/exhale

Automatic C++ library api documentation generation: breathe doxygen in and exhale it out.

Python · C++★ 239↓ 278.3K/moJul 21, 2026

BSD-3-ClauseJul 21, 2026 · metrics 1.13.0

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48At riskhealth index

Neargye/magic_enum

Static reflection for enums (to string, from string, iteration) for modern C++, work with any enum type without any macro or boilerplate code

C++★ 6,145Jul 21, 2026

MITJul 21, 2026 · metrics 1.13.0

#c-plus-plus