CONV. - Convert YouTube video to MP3, GIF or MP4
grepWin - grepWin is a simple search and replace tool which can use PCRE regular expressions to search for...
Downie - Video download for OS X. Downie supports at this moment over 1,000 different sites.
PowerGREP - Quickly search through large numbers of files on your PC or network using powerful text patterns to find exactly the information you want. Search and replace with plain text or regular expressions to maintain web sites, source code, reports, ...
Yout - YouTube to Mp3 Converter
dnGREP - dnGrep allows you to search across files with easy-to-read results.