Portable header-only C++ low level SIMD library

Unicorn CPU emulator framework (ARM, AArch64, M68K, Mips, Sparc, PowerPC, RiscV, S390x, TriCore, X86)

Keystone assembler framework: Core (Arm, Arm64, Hexagon, Mips, PowerPC, Sparc, SystemZ & X86) + bindings

Capstone disassembly/disassembler framework for ARM, ARM64 (ARMv8), Alpha, BPF, Ethereum VM, HPPA, LoongArch, M68K, M680X, Mips, MOS65XX, PPC, RISC-V(rv32G/rv64G), SH, Sparc, SystemZ, TMS320C64X, T…

Yocto/GL: Tiny C++ Libraries for Data-Driven Physically-based Graphics

Minimalistic GUI library for OpenGL

Simple, single-file fluid solvers for learning purposes

JSON for Modern C++

A modern, C++-native, test framework for unit-tests, TDD and BDD - using C++14, C++17 and later (C++11 support is in v2.x branch, and C++03 on the Catch1.x branch)

Bootstrap yourself to write an OS from scratch. A book for self-learner.

Complete, independent operating system built by humans.

Simple and Fast Multimedia Library