PNG MORE
Mixed
Pixel
Simply 8-bits #6
Jawbone, Up
DarkCyan
96x96
Business & finance
24x24 Free Pixel Icons
push, update, Go
Black
24x24
upload, Arrow, Top
PNG ICO ICNS MORE
Network & communications
16x16 Free Application Icons
Downloads, Arrow, Up
16x16
Arrow, Go, Up
DodgerBlue
Arrow, Go, push
prohibition, danger, reject
Firebrick
upload, Arrow, Up
DarkGray
Up, thumbs
LimeGreen
upload, update, Go
danger, wind, Gesture
Salmon
Up, Top, Arrow
Files & folders
ExplodingBoy Pixel Icons
Up
LightGray
20x20
CornflowerBlue
Coral
Family & home
IconBeast Lite
Up, thumb
30x30
UI
Bijou
10x10
Blueberry
Arrow, Left, Up
CadetBlue
32x32
Up, Arrow, right
Up, Arrow
Windows 8 Pack (Metro Style)
DarkSlateGray
26x26
Circular, Up
Up, volume