Welcome to the preview release of codename “Squiggly.” Squiggly is a spell checking engine for Adobe® Flash® Player and Adobe AIR®. The Squiggly library allows you to easily add spell checking functionality in any Adobe Flex® 3 or Flex 4 based text control. The distribution package consists of a utility for building your own spelling dictionaries, a sample English dictionary, an Action Script package that checks individual words for spelling accuracy, and sample code that demonstrates “check as you type” functionality — see the online demo. While the included UI class requires the Flex SDK, the core spell checking engine can be used in pure Flash applications without any dependency on Flex packages.