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Good First Issue curates easy pickings from popular open-source projects, and helps you make your first contribution to open-source.

An open source, turn-based strategy game with a high fantasy theme.
lang: C++
stars: 4.2K
last activity: 13 hours ago
qTox / qTox
qTox is a chat, voice, video, and file transfer IM client using the encrypted peer-to-peer Tox protocol.
lang: C++
stars: 4.32K
last activity: 2 months ago
Light-weight system monitor for X (and other things, too)
lang: C++
stars: 5.9K
last activity: 2 days ago
Multipass orchestrates virtual Ubuntu instances
lang: C++
stars: 5.71K
last activity: 13 days ago
The core of our monitoring platform with a powerful configuration language and REST API.
lang: C++
stars: 1.79K
last activity: 8 days ago
A modern open source rendering engine for animation and visual effects
lang: C++
stars: 1.96K
last activity: 10 months ago
High-level tracing language for Linux eBPF
lang: C++
stars: 6.23K
last activity: 2 days ago
OpenVDB - Sparse volume data structure and tools
lang: C++
stars: 1.93K
last activity: 9 days ago
ESP8266 WiFi Connection manager with web captive portal
lang: C++
stars: 5.57K
last activity: 9 days ago
Interactive, thoroughly customizable maps in native Android, iOS, macOS, Node.js, and Qt applications, powered by vector tiles and OpenGL
lang: C++
stars: 4.22K
last activity: 6 months ago
Solidity, the Smart Contract Programming Language
lang: C++
stars: 19.13K
last activity: 2 days ago
Apache Traffic Server™ is a fast, scalable and extensible HTTP/1.1 and HTTP/2 compliant caching proxy server.
lang: C++
stars: 1.54K
last activity: 5 hours ago
Mobile Shell
lang: C++
stars: 11.36K
last activity: a month ago
OpenTTD is an open source simulation game based upon Transport Tycoon Deluxe
lang: C++
stars: 4.5K
last activity: 15 hours ago
Shōgun
lang: C++
stars: 2.92K
last activity: a year ago
Point Cloud Library (PCL)
lang: C++
stars: 8.02K
last activity: a day ago
Modern C++14 library for the development of real-time graphical applications
lang: C++
stars: 1.68K
last activity: 3 years ago
Lightweight, Portable, Flexible Distributed/Mobile Deep Learning with Dynamic, Mutation-aware Dataflow Dep Scheduler; for Python, R, Julia, Scala, Go, Javascript and more
lang: C++
stars: 20.21K
last activity: 6 days ago
clab / dynet
DyNet: The Dynamic Neural Network Toolkit
lang: C++
stars: 3.34K
last activity: a month ago
mlpack / mlpack
mlpack: a fast, header-only C++ machine learning library
lang: C++
stars: 4.18K
last activity: a day ago
GNU Radio – the Free and Open Software Radio Ecosystem
lang: C++
stars: 4.08K
last activity: 16 hours ago
The reference P4 software switch
lang: C++
stars: 425
last activity: 8 days ago
An Open Source Machine Learning Framework for Everyone
lang: C++
stars: 170K
last activity: an hour ago
An open source re-implementation of RollerCoaster Tycoon 2 🎢
lang: C++
stars: 11.28K
last activity: 7 hours ago
An RSS/Atom feed reader for text terminals
lang: C++
stars: 2.25K
last activity: a day ago
pytorch / glow
Compiler for Neural Network hardware accelerators
lang: C++
stars: 2.88K
last activity: 8 days ago
rapidsai / cuml
cuML - RAPIDS Machine Learning Library
lang: C++
stars: 3.08K
last activity: 13 hours ago
:computer: Desktop Syncing Client for ownCloud
lang: C++
stars: 1.32K
last activity: 3 hours ago
Cryptography Toolkit
lang: C++
stars: 2.03K
last activity: 33 minutes ago
Avogadro libraries provide 3D rendering, visualization, analysis and data processing useful in computational chemistry, molecular modeling, bioinformatics, materials science, and related areas.
lang: C++
stars: 282
last activity: 5 days ago
Xbox 360 Emulator Research Project
lang: C++
stars: 6.34K
last activity: 11 minutes ago
Decentralized cryptocurrency blockchain daemon implementing the XRP Ledger protocol in C++
lang: C++
stars: 4.26K
last activity: 3 days ago
Scalable, Portable and Distributed Gradient Boosting (GBDT, GBRT or GBM) Library, for Python, R, Java, Scala, C++ and more. Runs on single machine, Hadoop, Spark, Dask, Flink and DataFlow
lang: C++
stars: 23.59K
last activity: an hour ago
Diablo build for modern operating systems
lang: C++
stars: 6.15K
last activity: 19 hours ago
Cataclysm - Dark Days Ahead. A turn-based survival game set in a post-apocalyptic world.
lang: C++
stars: 7.95K
last activity: an hour ago
RGB Driver for Linux
lang: C++
stars: 2.8K
last activity: 2 days ago
Python bindings for the Chromium Embedded Framework (CEF)
lang: C++
stars: 2.78K
last activity: 9 months ago
Mumble is an open-source, low-latency, high quality voice chat software.
lang: C++
stars: 5.17K
last activity: 3 minutes ago
RetroShare is a Free and Open Source cross-platform, Friend-2-Friend and secure decentralised communication platform.
lang: C++
stars: 1.52K
last activity: 18 hours ago
Hacktoberfest 2022 | World's largest Contributor driven code dataset | Used in Quark Search Engine, @OpenGenus IQ, OpenGenus Visual Project
lang: C++
stars: 13.29K
last activity: 23 days ago
slic3r / Slic3r
Open Source toolpath generator for 3D printers
lang: C++
stars: 2.99K
last activity: 2 months ago
Powerful, mature open-source cross-platform game engine for Python and C++, developed by Disney and CMU
lang: C++
stars: 3.63K
last activity: 3 days ago
A distributed, fast open-source graph database featuring horizontal scalability and high availability
lang: C++
stars: 8.41K
last activity: 3 hours ago
ArduPlane, ArduCopter, ArduRover, ArduSub source
lang: C++
stars: 7.93K
last activity: 31 minutes ago
Stellarium is a free GPL software which renders realistic skies in real time with OpenGL. It is available for Linux/Unix, Windows and macOS. With Stellarium, you really see what you can see with your eyes, binoculars or a small telescope.
lang: C++
stars: 4.42K
last activity: 7 hours ago
LMMS / lmms
Cross-platform music production software
lang: C++
stars: 6.34K
last activity: 12 hours ago
Bitcoin Core integration/staging tree
lang: C++
stars: 67.56K
last activity: 7 minutes ago
eclipse / omr
Eclipse OMR™ Cross platform components for building reliable, high performance language runtimes
lang: C++
stars: 896
last activity: 9 days ago
A simple GUI calculator🧮 built using C++
lang: C++
stars: 29
last activity: 25 days ago
An audio server, programming language, and IDE for sound synthesis and algorithmic composition.
lang: C++
stars: 4.55K
last activity: 34 minutes ago
The user-friendly command line shell.
lang: C++
stars: 20.07K
last activity: 2 hours ago
Open Source Routing Engine for OpenStreetMap
lang: C++
stars: 2.26K
last activity: 4 minutes ago
zeek / zeek
Zeek is a powerful network analysis framework that is much different from the typical IDS you may know.
lang: C++
stars: 4.9K
last activity: 7 days ago
The Atomic Game Engine is a multi-platform 2D and 3D engine with a consistent API in C++, C#, JavaScript, and TypeScript
lang: C++
stars: 2.82K
last activity: 3 months ago
Nodejs bindings to OpenCV 3 and OpenCV 4
lang: C++
stars: 4.68K
last activity: 6 months ago
Tensors and Dynamic neural networks in Python with strong GPU acceleration
lang: C++
stars: 61.28K
last activity: 6 minutes ago
Stan development repository. The master branch contains the current release. The develop branch contains the latest stable development. See the Developer Process Wiki for details.
lang: C++
stars: 2.35K
last activity: 9 days ago
OpenMLDB is an open-source machine learning database that provides a feature platform computing consistent features for training and inference.
lang: C++
stars: 1.22K
last activity: 34 minutes ago