PNG ICO ICNS SVG MORE
UI
Glyph
Free basic
Accept, checkmark, Check
DarkSeaGreen
512x512
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Windows 8 metro style
checkmark
Black
Business & finance
FatiCons
done, checkmark, Available
Computer & hardware
Ionicons
Circled, checkmark
round, checkmark
checkmark, Empty
Gentle Edges Icon Set
Check, checkmark
128x128
Mixed
Pittogrammi
correct, checkmark
Flat UI Icons Free
yes, Check, checkmark
Signs & symbols
3D
Free 3d Glossy Interface Icon Set
yes, mark, validation
64x64
checkmark, Accept, Check
LimeGreen
80x80
yes, ok, Check
Lavender
PNG MORE
Windows 8 icons
DarkSlateGray
26x26
IcoMoon
32x32
Smooth
All Google icons
gx, checkmark
ForestGreen
14x14
checkmark, Bx
DarkCyan
checkmark, lbx
DodgerBlue
checkmark, B
Lb, checkmark
O, checkmark
OrangeRed