The AWS Common Runtime (CRT) library provides a C++ wrapper implementation for the following AWS C libraries: aws-c-auth, aws-c-cal, aws-c-common, aws-c-compression, aws-c-event-stream, aws-c-http, aws-c-io, aws-c-mqtt, aws-checksums, and s2n.

mcpp is Matsui's CPP implementation precisely conformed to standards.

This package provides a simple gettext replacement that works directly on .po files and doesn't need .mo files pre-generated.

This package provides a collection of abstractions for C++ development, including containers, ranges, iterators, type traits and other tools.

MPark.Variant provides the C++17 std::variant for C++11/14/17. It is based on the implementation of std::variant in libc++.

This package provides the following implementations of std::function:

• copyable fu2::function

• move-only fu2::unique_function (capable of holding move only types)

• non-owning fu2::function_view (capable of referencing callables in a non owning way)

SimpleLogger is a thread-safe C++ logging library with configurable log-levels and support for various timestamp formats. It can batch and cache log messages as well as collapse repeated messages.

This package provides a C++ implementation of several hash map and a hash set variants using open addressing and hopscotch hashing to resolve collisions. It is intended to be fast and provides additional features, such as heterogeneous lookups and different growth policies.

This package provides simple string utilities for C++.

Taskflow is a C++ library for writing parallel and heterogeneous task programs.

tl::optional provides a single-header implementation of the std::optional for C++11/14/17, with support for monadic operations added in C++23.

Pystring is a collection of C++ functions which match the interface and behavior of Python's string class methods using std::string. Implemented in C++, it does not require or make use of a python interpreter. It provides convenience and familiarity for common string operations not included in the standard C++ library. It's also useful in environments where both C++ and Python are used.

The AWS SDK for C++ provides a C++11 interface to the AWS API. AWS provides on-demand computing infrastructure and software services including database, analytic, and machine learning technologies.

cli is a domain-specific language (DSL) for defining command line interfaces of C++ programs. It allows you to describe the options that your program supports, their types, default values, and documentation.

cpp-httplib is a C++11 single-file cross platform blocking HTTP/HTTPS library, easy to setup. It can also be used as a single-header library.

The simdjson library uses commonly available SIMD instructions and microparallel algorithms to implement a strict JSON parser with UTF-8 validation.

SWELL is a Windows emulation Layer. It provides a set of common APIs, common controls and win32-style extensions.

sfl-library provides many STL-like (Standard Template Library) containers including vectors, associative containers, and unordered containers based on hash tables. These containers are designed for C++11 and C++20 constant expression usage.

nlohmann::json is a C++ JSON library that provides intuitive syntax and trivial integration.

COLLADA-DOM is a C++ library for loading and saving COLLADA documents that can contain 2D, 3D, physics and other types of content.

Ada (not to be confused with the programming language) is a fast and specification-compliant URL parser written in C++. It conforms to the WHATWG specification and fully supports the relevant Unicode Technical Standard.

cpptrace is a simple and portable C++ stacktrace library supporting C++11 and greater. In addition to providing access to stack traces, cpptrace also provides a mechanism for getting stacktraces from thrown exceptions for debugging and triaging.

sajson is an in-place JSON parser with support for parsing with only a single memory allocation.

ArgAgg is yet another C++ command line argument/option parser. It was written as a simple and idiomatic alternative to other frameworks like getopt, Boost program options, TCLAP, and others. The goal is to achieve the majority of argument parsing needs in a simple manner with an easy to use API.