http://feross.org/fill-disk/
http://youtu.be/XkScSMIr_00
"
- Fills up the user’s hard disk on Chrome, Safari (iOS and desktop), Opera, and IE.
- Fills up 1 GB every 16 seconds on my Macbook Pro Retina (with solid state drive)
- Tested with Chrome 25, Safari 6, Opera (12), IE 10.
- For 32-bit browsers, like Chrome, the entire browser may crash before the disk is filled.
- Does not work on Firefox, since Firefox’s implementation of localStorage is smarter.
- Includes a button to reclaim your disk space ;)"
this thing is bad...