PNG MORE
Mixed
Pixel
Simply 8-bits #3
to, Key, Go
RoyalBlue
96x96
Business & finance
24x24 Free Pixel Icons
Key
Black
24x24
PNG ICO ICNS MORE
Network & communications
16x16 Free Application Icons
secure, Log in, pass
16x16
Key, Log in, login
Lock, security, pwd
Files & folders
ExplodingBoy Pixel Icons
Coral
20x20
CornflowerBlue
LightGray
Family & home
IconBeast Lite
30x30
UI
Bijou
10x10
Blueberry
Key, login
32x32
Windows 8 Pack (Metro Style)
DarkSlateGray
26x26
IconSweets 2
Brush, Key, Painting
40x40
Key, Brush, password
Key, volume, speaker
sound, Key
Computer & hardware
WooCons #1
Key, cmd
WhiteSmoke
Boolean
DimGray
Fugue Icons
solid, Key
SaddleBrown
Key, license
SandyBrown
PowderBlue
Key, Arrow