Local by Flywheel - Provides a simple, local development environment with a friendly GUI.
Duolingo - Duolingo is a free language learning app for iOS, Windows and Android devices. The app makes learning a new language fun by breaking learning into small lessons where you can earn points and move up through the levels. Read more about Duolingo.
WordPress Portable - With WordPress Portable you can experience the most popular blogging platform right out of the box. Just download, extract and run it!
LanguageBeast.com - Study English synonyms and antonyms to enrich your vocabulary
InstantWP - InstantWP is a complete standalone, portable WordPress development environment.
Skeebdo - Learn English words from any movie/TV show