C++20 modules for a brighter future – and your help!

Faster compilation • Better encapsulation • No macro leakage • No include order issues

239 of 2,614 projects complete • Estimated completion: 10 August 2083

Stars updated 4 Nov 2026· vcpkg data 7 Sep 2026 (commit) · 425 C libraries excluded · Rebuilt 4 Nov 2026

This website tracks the most popular C++ projects, compilers, and build systems. Projects are ranked by GitHub stars by default, with vcpkg port updates used when GitHub data is unavailable. You can also switch the ranking to prefer vcpkg data.

We also have an example section to track good projects using modules natively and a document section tracks good articles about modules too.

Feel free to contribute to these lists.

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C++ needs you: help other open source projects support C++20 modules