Radix Icons - A crisp set of 15×15 icons. Open source.
NimbleText - NimbleText is a text manipulation and code generation tool available online or as a free download.
Drawcon - Draw your own app icons
WordCounter.net - Count words, sentences, paragraphs etc.
App Icon Template - Royalty free app icon creator for iOS, OS X and Android
Heytools - JavaScript tools, AJAX tools and some fully server side tools.