Dear ImGui: Bloat-free Graphical User interface for C++ with minimal dependencies

DuckDB is an analytical in-process SQL database management system

Emscripten: An LLVM-to-WebAssembly Compiler

Lovely console emulator package for Windows

Open Source alternative to Algolia + Pinecone and an Easier-to-Use alternative to ElasticSearch ⚡ 🔍 ✨ Fast, typo tolerant, in-memory fuzzy Search Engine for building delightful search experiences

Parsing gigabytes of JSON per second : used by Facebook/Meta Velox, the Node.js runtime, ClickHouse, WatermelonDB, Apache Doris, Milvus, StarRocks

A virtual machine for executing programs written in Hack.

Microsoft Cognitive Toolkit (CNTK), an open source deep-learning toolkit

Google's common Java, C++ and JavaScript library for parsing, formatting, and validating international phone numbers.

Free and Open Source Reverse Engineering Platform powered by rizin

A toolkit for making real world machine learning and data analysis applications in C++

Xournal++ is a handwriting notetaking software with PDF annotation support. Written in C++ with GTK3, supporting Linux (e.g. Ubuntu, Debian, Arch, SUSE), macOS and Windows 10. Supports pen input fr…

Google's Operations Research tools:

The Z3 Theorem Prover

EASTL stands for Electronic Arts Standard Template Library. It is an extensive and robust implementation that has an emphasis on high performance.

A collection of C++ HTTP libraries including an easy to use HTTP server.

Go engine with no human-provided knowledge, modeled after the AlphaGo Zero paper.

Reverse engineering focusing on x64 Windows.

Algorithms & Data structures in C++.

A large scale non-linear optimization library

Anonymous peer-to-peer instant messaging

Mapnik is an open source toolkit for developing mapping applications

🔨 🍇 💻 🚀 GraphScope: A One-Stop Large-Scale Graph Computing System from Alibaba | 一站式图计算系统

The repository contains Google's robots.txt parser and matcher as a C++ library (compliant to C++11).

Bond was a cross-platform framework for working with schematized data. The open-source project ended on March 31, 2025.

A science fiction desktop running on Linux. Awesome.

A web runtime built on Chrome. This project is currently unmaintained.

A lightweight anime tracker for Windows

C++ program to generate waveform data and render waveform images from audio files

An Open-source LTE Downlink/Uplink Eavesdropper