Heytools - JavaScript tools, AJAX tools and some fully server side tools.
App Icon Template - Royalty free app icon creator for iOS, OS X and Android
WordCounter.net - Count words, sentences, paragraphs etc.
Radix Icons - A crisp set of 15×15 icons. Open source.
TextBuddy for macOS - A Swiss Army knife for plain text.
Drawcon - Draw your own app icons