Puredyne : Puredyne is the USB-bootable GNU/Linux operating system for creative multimedia.
regex101 : Free PCRE-based regular expression debugger with real time explanation, error detection and highlighting.
Audacity : Audacity est un logiciel libre, gratuit et multi-plateforme pour l'enregistrement et l'édition de sons.
Paul's Extreme Sound Stretch : This is a program for stretching the audio. It is suitable only for extreme sound stretching of the audio (like 50x) and for applying special effects ...
The Joel Test : I've come up with my own, highly irresponsible, sloppy test to rate the quality of a software team : 12 Steps to Better Code.
VST Plugins Free - Virtual instruments and effects