Aba Search and Replace

Aba is a tool for replacing text in multiple files. With Aba, you can quickly correct errors on your web pages, replace banners and copyright notices, change method names, and perform other text-processing tasks.

Features: search-as-you-type interface, multi-line search and replace, regular expression support, Unicode support (UTF-8 and UTF-16), search history and favorites, undo for any replacement.