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Welcome to Esolang, the esoteric programming languages wiki!

This wiki is dedicated to the fostering and documentation of programming languages designed to be unique, difficult to program in, or just plain weird.

Why not join us on IRC?

For readers

You'll probably want to find out what on earth an esoteric programming language is in the first place.

Then, you might want to explore the complete list of languages, or find something more specific with the categories.

You could also visit the joke language list, which lists languages that can't even be programmed in.

Failing that, you could take a look at a completely random page.

Featured language

Funciton (pronounced: /ˈfʌŋkɪtɒn/) is a two-dimensional, minimalistic, declarative esoteric programming language invented by User:Timwi, in which code consists of dataflow diagrams in the style of Unicode box art. The values flowing through the diagrams are all arbitrary-size integers, but can be interpreted as strings for I/O, as IDs for lambda expressions, or as any other data structure that can be built from these. There are only a handful of primitive instructions: NAND, less-than, shift-left, function invocation and lambda expressions. An extensive library written in the language itself provides many useful basic and higher-order functions, including for arithmetic, strings, (strict) lists and lazy sequences. (more…)

Previously featured: Brainfuck · Deadfish · Emmental · Malbolge · more…

For creators

If you've just created a language, you can create an article for it by typing its name into the search box, but be sure to take a look at the help guide first. Then you should add it to the language list (or the joke language list, as appropriate).

If you haven't got that far yet, take a look at the list of ideas for inspiration.

Otherwise, you could help out with a work in progress.


Since April 2005, 2,224 articles have been created by 58,705 edits, including 1,364 esoteric languages. There are 6,275 registered users, but most of them are spambots.

Enjoy being locked in your matrix of solidity.