Emscripten - Emscripten is an LLVM to JavaScript compiler.
Python - Python is a clear and powerful object-oriented programming language, comparable to Perl, Ruby, Scheme, or Java.
QuickJS - Application and Data, Build, Test, Deploy, and JavaScript Compilers
Java - A concurrent, class-based, object-oriented, language specifically designed to have as few implementation dependencies as possible
Portable C Compiler - pcc is a C99 compiler which aims to be small, simple, fast and understandable.
Rust - A safe, concurrent, practical language