Best Open Source header only Libraries

A curated list of the most popular GitHub repositories tagged with header only. Select any project to visualize its architecture and dive into the codebase using RepoMind's AI engine.

#1nlohmann/json

JSON for Modern C++

48,936C++

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#2gabime/spdlog

Fast C++ logging library.

28,358C++

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#3skypjack/entt

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

12,299C++

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#4doctest/doctest

The fastest feature-rich C++11/14/17/20/23 single-header testing framework

6,623C++

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