grepWin - grepWin is a simple search and replace tool which can use PCRE regular expressions to search for...
CONV. - Convert YouTube video to MP3, GIF or MP4
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, ...
Downie - Video download for OS X. Downie supports at this moment over 1,000 different sites.
dnGREP - dnGrep allows you to search across files with easy-to-read results.
Yout - YouTube to Mp3 Converter