Puggle

Puggle is an open-source desktop search engine written exclusively in Java. It provides full text and metadata search over files, folders, music, photos, web pages and more that are stored locally on your computer. Moreover, a portable edition of Puggle is available that you can carry around with you on a portable device, like a USB flash drive or an external hard drive. Puggle will index all the data contained in and allow you to search over them on any computer.