ClickHouse® is a real-time analytics database management system

C++ based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)

FlatBuffers: Memory Efficient Serialization Library

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

Yoga is an embeddable layout engine targeting web standards.

Apache Arrow is the universal columnar format and multi-language toolbox for fast data interchange and in-memory analytics

FoundationDB - the open source, distributed, transactional key-value store

Cap'n Proto serialization/RPC system - core tools and C++ library

Flexible level editor

Gaming meets modern C++ - a fast and reliable entity component system (ECS) and much more

The Z3 Theorem Prover

Reliable & unreliable messages over UDP. Robust message fragmentation & reassembly. P2P networking / NAT traversal. Encryption.

Cross-platform library for building Telegram clients

Draco is a library for compressing and decompressing 3D geometric meshes and point clouds. It is intended to improve the storage and transmission of 3D graphics.

Double-entry accounting system with a command-line reporting interface

Doom 3 BFG Edition

Multi-channel signed distance field generator

Free Lossless Image Format

TreeSheets : Free Form Data Organizer (see strlen.com/treesheets)

Efficient binary-decimal and decimal-binary conversion routines for IEEE doubles.

Lisp-flavoured C

Decoda Lua IDE and debugger

Code formatter for Lua

Efficient C++ implementation of the Cassowary constraint solving algorithm

GLyphy is a signed-distance-field (SDF) text renderer using OpenGL ES2 shading language.

JPS+ and Goal Bounding

C++ header-only library with methods to efficiently encode/decode Morton codes in/from 2D/3D coordinates

LWF - Lightweight SWF

Game engine with an Entity-Component-System (ECS) architecture. Focus on ease-of-use, runtime extensibility and compile-time type safety.