Nim is a statically typed compiled systems programming language. It combines successful concepts from mature languages like Python, Ada and Modula. Its design focuses on efficiency, expressiveness, and elegance (in that order of priority).

Meta-programming for Swift, stop writing boilerplate code.

Apache Groovy: A powerful multi-faceted programming language for the JVM platform

A dialect of Lisp that's embedded in Python

Static reflection for enums (to string, from string, iteration) for modern C++, work with any enum type without any macro or boilerplate code

Example code for Fluent Python, 2nd edition (O'Reilly 2022)

Manifold is a Java compiler plugin, its features include Metaprogramming, Properties, Extension Methods, Operator Overloading, Templates, a Preprocessor, and more.

Minimal, efficient, statically-typed and meta-programmable systems programming language heavily inspired by Lua, which compiles to C and native code.

Nameof operator for modern C++, simply obtain the name of a variable, type, function, macro, and enum

Every programmer needs a rubberduck. COM add-in for the VBA & VB6 IDE (VBE).

Spoon is a metaprogramming library to analyze and transform Java source code. 🥄 is made with ❤️, 🍻 and ✨. It parses source files to build a well-designed AST with powerful analysis and transformation API.

Your standard library for metaprogramming

Next generation API for .NET

Algebraic data types for C99

Scala library for boilerplate-free, type-safe data transformations

C++14 Dependency Injection Library

C++14 State Machine library

Library to read, analyze, transform and generate Scala programs

Static reflection for C++17 (compile-time enumeration, attributes, proxies, overloads, template functions, metaprogramming).

Full-blown preprocessor metaprogramming