Google Fonts - Making the web more beautiful, fast, and open through great typography
NimbleText - NimbleText is a text manipulation and code generation tool available online or as a free download.
Typewolf - Typewolf helps designers choose the perfect font combination for their next design project—features web fonts in the wild, font recommendations and learning resources.
WordCounter.net - Count words, sentences, paragraphs etc.
Font Generator - Tons of font ideas in one click
Heytools - JavaScript tools, AJAX tools and some fully server side tools.