Genericons : Genericons are vector icons embedded in a webfont designed to be clean and simple keeping with a generic aesthetic.
Use genericons for instant HiDPI, ...
meSpeak.js : meSpeak.js (modulary enhanced speak.js) is a 100% client-side JavaScript text-to-speech library
Feather : Feather is a collection of simple open source icons. Each icon is designed on a 24x24 grid with an emphasis on simplicity, consistency and readability...
Audacity : Audacity est un logiciel libre, gratuit et multi-plateforme pour l'enregistrement et l'édition de sons.
Freesound is a collaborative database of Creative Commons Licensed sounds. Browse, download and share sounds.