Top 11 C++ single-header-lib Projects

indicators

3 2,822 2.6 C++

Activity Indicators for Modern C++
tabulate

1 1,792 6.0 C++

Table Maker for Modern C++ (by p-ranav)
WorkOS

workos.com sponsored

The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.
cr

5 1,478 0.0 C++

cr.h: A Simple C Hot Reload Header-only Library
nanobench

13 1,301 5.0 C++

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

Project mention: The issue of unit tests and performance measurements (Benchmark) | /r/cpp | 2023-05-27

An alternative is tracking the number of instructions a test executes: https://github.com/martinus/nanobench

matchit.cpp

7 519 0.0 C++

match(it): A lightweight single-header pattern-matching library for C++17 with macro-free APIs.
csv2

1 513 4.3 C++

Fast CSV parser and writer for Modern C++
structopt

3 451 0.0 C++

Parse command line arguments by defining a struct (by p-ranav)
InfluxDB

www.influxdata.com sponsored

Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
imgui_entt_entity_editor

1 209 2.5 C++

A drop-in entity editor for EnTT with Dear ImGui
rapidobj

5 159 5.9 C++

A fast, header-only, C++17 library for parsing Wavefront .obj files.
Heady

3 41 0.0 C++

A utility for creating amalgamated single-header C++ libraries
bit_set

1 40 8.9 C++

Rebooting the std::bitset franchise

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).