awesome-esolangs

A stack-based 2d language with support for reflection.

A surprisingly user-friendly language with a highly-limited instruction set.

A single-character command language focused around the numbers 7 and 8.

Language defined completely in JSON.

Code in binary and run on any platform.

Based on the best one-liners of Arnold Schwarzenegger.

Informal

Golfing problems and answers.

A Discord community about esoteric languages.

The #esoteric IRC channel on freenode.

Reddit community on esolangs.

The only true brainfuck assembler toolkit.

A truly monstrous async web chat using no JS whatsoever on the frontend.

Simple FizzBuzz game implemented under the most strict enterprise standards.

A Lisp interpreter in Malbolge Unshackled.

Secure and reliable applications. Write nothing; deploy nowhere.

Operating System concept based on random actions and rewards/punishments.

List of esoteric languages and algorithms written by dangermouse.

The Esoteric Files Archive, an archive of implementations of esoteric programming languages and examples.

Wiki of esoteric programming languages and related Resources.

Compilation of ideas for esoteric languages and related.

Articles and documents collection.

Provides examples in different languages, including esoteric languages.

Series of articles explaining the basics of compilers and interpreters and how to build one.

Turing Machine on PowerPoint.

Post by Yevgeniy Brikman describing different programming paradigms that are not commonly applied.

Straightforward introduction to esoteric languages with examples.

Sorts a list by searching answers in Stack Overflow and executing code snippets until is sorted.

Pi-based storage system, store your data by searching a matching sequence in pi.