The Top 142 Header Only Open Source Projects

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The Top 142 Header Only Open Source Projects

Categories > Programming Languages > Header Only

JSON for Modern C++

Catch2 ⭐12,374

A modern, C++-native, header-only, test framework for unit-tests, TDD and BDD - using C++11, C++14, C++17 and later (or C++03 on the Catch1.x branch)

Spdlog ⭐10,138

Fast C++ logging library.

Crow is very fast and easy to use C++ micro web framework (inspired by Python Flask)

Guilite ⭐4,972

✔️The smallest header-only GUI library(4 KLOC) for all platforms

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

Cpp Httplib ⭐4,000

A C++ header-only HTTP/HTTPS server and client library

Doctest ⭐2,912

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

Compile Time Regular Expressions ⭐1,669

A Compile time PCRE (almost) compatible regular expression matcher.

Magic_enum ⭐1,431

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

Indicators ⭐1,197

Activity Indicators for Modern C++

Functionalplus ⭐1,174

Functional Programming Library for C++. Write concise and readable C++ code.

Your standard library for metaprogramming

Header-only, event based, tiny and easy to use libuv wrapper in modern C++ - now available as also shared/static library!

Parsing Expression Grammar Template Library

Better Enums ⭐1,051

C++ compile-time enum to string, iteration, in a single header file

Awesome Hpp ⭐1,016

A curated list of awesome header-only C++ libraries

Cross-platform C++11 header-only library for memory mapped file IO

Portable, simple and extensible C++ logging library

Header-only C++ binding for libzmq

Fast, modern C++ DSP framework, FFT, Sample Rate Conversion, FIR/IIR/Biquad Filters (SSE, AVX, AVX-512, ARM NEON)

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

🚀 Making multi-player gamedev simpler since 2017

Argh! A minimalist argument handler.

Frugally Deep ⭐669

Header-only library for using Keras models in C++.

easy to use, powerful & expressive command line argument parsing for modern C++ / single header / usage & doc generation

A Template Engine for Modern C++

a compile-time, header-only, dimensional analysis and unit conversion library built on c++14 with no dependencies.

A Header-Only cross-platform C++ TCP network library . Can use vcpkg(https://github.com/Microsoft/vcpkg/tree/master/ports/brynet) install

Gsl Lite ⭐599

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

Argparse ⭐583

Argument Parser for Modern C++

Robin Hood Hashing ⭐580

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

Lightweight, portable and easy to integrate C directory and file reader

Hat Trie ⭐529

C++ implementation of a fast and memory efficient HAT-trie

Filesystem ⭐509

An implementation of C++17 std::filesystem for C++11 /C++14/C++17 on Windows, macOS, Linux and FreeBSD.

🤖 A portable, header-only, artificial neural network library written in C99

Random for modern C++ with convenient API

Lazy_importer ⭐451

library for importing functions from dlls in a hidden, reverse engineer unfriendly way

Robin Map ⭐448

C++ implementation of a fast hash map and hash set using robin hood hashing

A header-only C++ library for large scale eigenvalue problems

Hopscotch Map ⭐434

C++ implementation of a fast hash map and hash set using hopscotch hashing

UT: C++20 μ(micro)/Unit Testing Framework

A small c++11 header-only library for Lie theory.

Earcut.hpp ⭐418

Fast, header-only polygon triangulation

Mpmcqueue ⭐413

A bounded multi-producer multi-consumer concurrent queue written in C++11

A simple C++ finite state machine library

📐 Your (almost) C99 Powerkit

Picosha2 ⭐389

a header-file-only, SHA256 hash generator in C++

Cpp Peglib ⭐381

A single file C++ header-only PEG (Parsing Expression Grammars) library

Nanobench ⭐370

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

Event Dispatcher and callback list for C++

TOML for Modern C++

Tomlplusplus ⭐319

Header-only TOML config file parser and serializer for C++17 (and later!).

C++ header-only JSON library

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

Header-only, non-intrusive and macro-free runtime reflection system in C++

Structopt ⭐301

Parse command line arguments by defining a struct

Span Lite ⭐296

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

Fundamental C++ SIMD types for Intel CPUs (sse, avx, avx2, avx512)

Optional Lite ⭐274

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 C++ await/yield emulation library for stackless coroutine

Ordered Map ⭐272

C++ hash map and hash set which preserve the order of insertion

Spscqueue ⭐265

A bounded single-producer single-consumer wait-free and lock-free queue written in C++11

[DEPRECATED] See https://github.com/p-ranav/csv2

Human-friendly unit testing for C++11

A header only library for creating and validating json web tokens in c++

Histogram ⭐234

Fast multi-dimensional generalized histogram with convenient interface for C++14

Either and Maybe monads for better error-handling in C++ ↔️

🧮 A research programming language on top of C macros

Thorsserializer ⭐225

C++ Serialization library for JSON

A header-only C++ library for deep neural networks

String View Lite ⭐221

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

Obfuscate ⭐213

Guaranteed compile-time string literal obfuscation header-only library for C++14

A simple to use, composable, command line parser for C++ 11 and beyond

Approvaltests.cpp ⭐193

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

Variant Lite ⭐184

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

Sparse Map ⭐182

C++ implementation of a memory efficient hash map and hash set

Inline_syscall ⭐180

Inline syscalls made easy for windows on clang

⛳ Simple, extensible, header-only C++17 argument parser released into the public domain.

TE: C++17 Run-time polymorphism (type erasure) library

🍀 c++ standalone header-only basic library. || c++头文件实现无第三方依赖基础库

A single-header incremental garbage collector library

A C++11 or library for parsing and serializing JSON to and from a DOM container in memory.

Tinywindow ⭐166

a cross platform (Linux and Windows) OpenGL window library in a single header

Lightweight Error Augmentation Framework

Emojicpp ⭐164

Emoji 😄 for c++ developers 👍

C++ header-only fixed-point math library

Orm Lite ⭐157

Header-Only, Strong-Typed, Compile-time Object Relation Mapping (ORM) in Modern C++ :-)

Header only c++ network library, based on asio,support tcp,udp,http,websocket,rpc,ssl,icmp,serial_port.

⚡️ ENet reliable UDP networking library

Aegis.cpp ⭐154

Discord C++ library for interfacing with the API. Join our server:

Simpleai ⭐152

SimpleAI is a small C++ AI behaviour tree based library with a QT5 based remote debugger (and with optional LUA bindings) released under MIT.

Operators ⭐150

A highly efficient, move-aware operators library

Expected Lite ⭐150

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

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

Braintree ⭐144

C++ behavior tree single header library

Template Library of Tree Data Structures in C++17

💉 全能进程注入器 [Yet Another Process Injector] that reduce differences between x64, wow64 and x86 processes.

Libgrape Lite ⭐142

🍇 A C++ library for parallel graph processing 🍇

Fast CSV parser and writer for Modern C++

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