Cpp20 GitHub Repositories (2026) · Open Source Tools

Nota — a free DAW for macOS, Windows and Linux. No subscription, no account — just open it and make music.

Windows player that runs video, photos or GIFs through NVIDIA's DLSS 5 neural renderer, then compares the result with the original frame by frame. Local files or YouTube. Needs an RTX card and driver 610.47+. Community project, unsigned runtime. C++20, D3D12.

A systematic modern C++ tutorial covering C++11-C++23, STL, concurrency, performance optimization, software engineering, embedded systems, networking, GUI, and real-world project practices.

Sega Saturn emulator

A custom launcher for Minecraft that allows you to easily manage multiple installations of Minecraft at once (Fork of MultiMC)

LYNX SHARE — lightweight open-source DAW in C++20/JUCE with the FL Studio workflow: Channel Rack, Piano Roll, Playlist, Mixer and .flp import

Modern MVVM framework on the C++23 baseline — cross-platform, layered, coroutine-first. Reactive DAG (Property/Computed/Effect), Task<T>, and pluggable adapters (Continuo-powered HTTP).

Engineered for fast, low-overhead workflows, CoreDeck brings a sleek C++20 desktop interface to official Android SDK tools, emulators, and device debugging without touching Android Studio.

A modern C++17/C++20 glTF 2.0 library focused on speed, correctness, and usability

C++ Library for Audio Digital Signal Processing

Fast, modern C++ DSP framework, FFT, Sample Rate Conversion, FIR/IIR/Biquad Filters (SSE, AVX, AVX-512, ARM NEON, RISC-V RVV)

a community oriented 1:1, vLLM-alike (Continuous batching, paged KV) engine in C++ with additional features (GGUF, RadixAttention, Cache-aware scheduling, ...)

Fast, deterministic, open-source Windows non-linear video editor built with C#/.NET 10, WPF, and a C++20/Direct3D 11 media engine

A general-purpose lightweight C++ graph library

C++20 μ(micro)/Unit Testing framework

The C++ Standard Library for Parallelism and Concurrency

Parsing Expression Grammar Template Library

Production-ready C++ Asynchronous Framework with rich functionality

CPS-2 Recomp: unofficial native PC ports of Capcom CPS-2 arcade games (Street Fighter Alpha 2, Super Puzzle Fighter II Turbo, Vampire Savior) via static recompilation, with training modes, in one launcher: macOS, Linux, Steam Deck, Windows. Requires your own ROM sets. Beta.

A high performance Vulkan/DX12 game engine in C++ & C#