Dear ImGui: Bloat-free Graphical User interface for C++ with minimal dependencies

JSON for Modern C++

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

Apache Thrift

The POCO C++ Libraries are powerful cross-platform C++ libraries for building network- and internet-based applications that run on desktop, server, mobile, IoT, and embedded systems.

A C++ library for interacting with JSON.

A collection of C++ HTTP libraries including an easy to use HTTP server.

The C++ REST SDK is a Microsoft project for cloud-based client-server communication in native code using a modern asynchronous C++ API design. This project aims to help C++ developers connect to an…

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

Node Editor built using Dear ImGui

Qt Node Editor. Dataflow programming framework

A high-performance REST toolkit written in C++

Corvusoft's Restbed framework brings asynchronous RESTful functionality to C++ applications.

rpclib is a modern C++ msgpack-RPC server and client library

C++ library for creating an embedded Rest HTTP server (and more)

Simple, small, C++ embeddable webserver with WebSockets support

A C++11 RESTful web server library