single-header-lib topic
foc_libraries
Header-only C++ advanced data structures
hypatia
A header-only, pure-C math library for 2D/3D graphics (matrix, vector, quaternion) Seeks to be close to C89/C90 compliant for portability. It's like a BLAS, but easier to use.
msf_gif
A single-header animated GIF exporter
Snippets
(Hopefully) useful code snippets and header-only libs
imgui_entt_entity_editor
A drop-in entity editor for EnTT with Dear ImGui
ccpp
ccpp, a general purpose single-header preprocessor library.
awesome-hpp
A curated list of awesome header-only C++ libraries
criterion
Microbenchmarking for Modern C++
csv2
Fast CSV parser and writer for Modern C++