Cheerp is an open-source, commercial C/C++ compiler for HTML5 web applications, capable of compiling C/C++ to WebAssembly, JavaScript, or a combination of the two.

Cheerp is the most advanced and flexible solution to bring C++ code to the Web. It is based on the industry-standard Clang/LLVM stack, and provides a robust workflow with sensible defaults, clear error messages and gcc-like command-line options that allow for an easy integration in IDEs and continuous integration environments. Cheerp runs on Windows, macOS and Linux, making it possible for C++ developers to create Web application in a seamless manner on their system of choice.