The Go programming language
A list of programming languages that are actively developed on GitHub
The Swift Programming Language
Empowering everyone to build reliable and efficient software.
The Kotlin Programming Language
The Python programming language
The PHP Interpreter
The Julia Language: A fresh approach to technical computing.
The Ruby Programming Language [mirror]
Elixir is a dynamic, functional language designed for building scalable and maintainable applications
The Crystal Programming Language
PowerShell for every system!
The Scala programming language
The Roslyn .NET compiler provides C# and Visual Basic languages with rich code analysis APIs.
The Clojure programming language
MicroPython - a lean and efficient Python implementation for microcontrollers and constrained systems
Nim is a compiled, garbage-collected systems programming language with a design that focuses on efficiency, expressiveness, and elegance (in that order of priority).
Definitely not a TypeScript to WebAssembly compiler