fun> :load /index.fun

The programming language that makes you have fun!

What is Fun?

Fun is a highly strict programming language, but also highly simple. It looks like Python (My favorite language), but there are differences.

Influenced by Bash, C, Go, Lua, Python, and Rust (Most influences came from linked languages).

Fun is and will ever be 100% free under the terms of the Apache-2.0 License.

Idea

  • Simplicity
  • Consistency
  • Joy in coding
  • Fun!

Extras

  • PC/SC smart card support builtin (optional)

Characteristics

  • Dynamic and optionally statically typed
  • Type safety
  • Written in C (C99) and Fun
  • Internal libs are written with no_camel_case even when written in Fun, except class names
  • Only a minimal function set is written in C, and most other core functions and libraries are implemented in Fun

The Fun Manifesto

Fun is a programming language built on a simple idea: Coding should be enjoyable, elegant, and consistent.

Philosophy

  • Fun is Fun
    Programming should spark creativity, not frustration. Code in Fun feels light, playful, and rewarding.
  • Fun Uses Nothing
    Minimalism is power. No unnecessary features, no endless syntax variations, no formatting debates. Just clean, uniform code.
  • Indentation is Truth
    Two spaces, always. No tabs, no four-space wars. Code should look the same everywhere, from your laptop to /usr/bin/fun.
  • One Way to Do It
    No clutter, no 15 ways of writing the same thing. Simplicity means clarity.
  • Hackable by Nature
    Fun should be small and embeddable, like Lua. Easy to understand, extend, and tinker with — true to the hacker spirit.
  • Beautiful Defaults
    A language that doesn’t need linters, formatters, or style guides. Beauty is built in.

The Community

Fun is not about being the fastest or the most feature-rich. It’s about sharing joy in coding. The community should be:

  • Respectful
  • Curious
  • Creative

Like the name says: Fun Unites Nerds.

The Goal

A language that feels like home for developers who:

  • Love minimal, elegant tools
  • Believe consistency is freedom
  • Want to write code that looks good and feels good

Fun may not change the world — but it will make programming a little more fun.

Documentation

Actually there does not exist any documenation. In the examples/ directory should be an example of most Fun features.

Code

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