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

Static reflection for enums (to string, from string, iteration) for modern C++, work with any enum type without any macro or boilerplate code

Nameof operator for modern C++, simply obtain the name of a variable, type, function, macro, and enum

Header-only TOML config file parser and serializer for C++17.

Fast & memory efficient hashtable based on robin hood hashing for C++11/14/17/20

Simple, fast, accurate single-header microbenchmarking functionality for C++11/14/17/20

Schema-driven web server framework.

Argh! A minimalist argument handler.

Single-file library for calculating 2D UI layouts using stacking boxes. Compiles as C99 or C++.

gsl-lite – A single-file header-only version of ISO C++ Guidelines Support Library (GSL) for C++98, C++11, and later

A dependency free, embeddable debugger for Lua in a single file (.lua or .h)

CLI tool for saving a faithful copy of a complete web page in a single HTML file (based on SingleFile)

gb single-file public domain libraries for C & C++

span lite - A C++20-like span for C++98, C++11 and later in a single-file header-only library

string_view lite - A C++17-like string_view for C++98, C++11 and later in a single-file header-only library

expected lite - Expected objects in C++11 and later in a single-file header-only library

optional lite - A C++17-like optional, a nullable object for C++98, C++11 and later in a single-file header-only library

A modern, C++11-native, single-file header-only, tiny framework for unit-tests, TDD and BDD (includes C++98 variant)

Simple header-only C/C++ unit testing facility.

Native ApprovalTests for C++ on Linux, Mac and Windows