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, search history, favorites, undo for any replacement, and command-line interface. The recent version adds converting Unix/JavaScript timestamps to dates and vice versa; encoding and decoding Base64, URL encoding, and HTML entities.