JavaScript - Lightweight, interpreted, object-oriented language with first-class functions
Markdown by DaringFireball - Text-to-HTML conversion tool/syntax for web writers, by John Gruber
Python - Python is a clear and powerful object-oriented programming language, comparable to Perl, Ruby, Scheme, or Java.
Characters - Characters makes it easy for writers, designers and developers to access special characters. They are easily found and copied to your clipboard, either as html code or as the character itself.
PHP - A popular general-purpose scripting language that is especially suited to web development
Qwik - The HTML-first framework. Initialize apps of any size with < 1kb JS