PNG ICO ICNS SVG MORE
Signs & symbols
Flat
Social Buttons
Up, thumb, valid
MediumSeaGreen
512x512
UI
Glyph
Free basic
Accept, checkmark, Check
DarkSeaGreen
PNG ICO ICNS MORE
Photography & graphic design
3D
32x32 Free Design Icons
mark, checking, spell
Black
32x32
Free 3d Glossy Interface Icon Set
yes, mark, validation
64x64
checkmark, Accept, Check
LimeGreen
80x80
yes, ok, Check
Lavender
Accept, ready, tick
Desktop apps
Smooth
Farm-fresh
valid
PNG MORE
Mixed
Pixel
Koloria icons pack
mayosoft, base, valid
OliveDrab
30x30
valid, xhtml
SteelBlue
document, valid
16x16 Free Toolbar Icons
ok, tick, Blue
DodgerBlue
16x16
Fugue Icons
validation, valid
Green
document, validation, valid
DarkSlateGray
Crysigns
select, valid
CornflowerBlue
256x256
Css, valid
SandyBrown
valid, html
valid, Rss
Coral
Free Applications Icons
ok, success, Accept
24x24
Check, good, tick
Check, Accept, green
Computer & hardware
Crystal Project
Clean, yes, correct
Silk
xhtml, valid
Tan