PNG ICO ICNS SVG MORE
UI
Outline
Freeline
ok, yes, tick
Black
512x512
Mixed
Handdrawn
Social Messaging & Productivity
yes, ok, tick
ikooni outline: Free Basic
checkmark, Check, complete
Watchify v1.0 - 70px
Affirmative, yes, check mark
Watchify v1.0 - 80px
yes, check mark, success
Watchify v1.0 - 32px
success, complete, check mark
Glyph
Very Basic. Android L (Lollipop)
Checked, Accept, yes
done, check mark, good
ok, Accept, Choose
Signs & symbols
Flat
Social Buttons
Up, thumb, valid
MediumSeaGreen
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Facebook Likes
Like, yes, uphand
DarkSlateGray
100x100
Network & communications
Communication & Technology
ok, speech bubble, Bubble
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Social media
Jolly Icons Free – 36 Hand-Drawn UI Icons
Agree, Up, hand drawn
64x64
WPZOOM Developer Icon Set
Like, yes
Mobile apps
Free Retina Icon Set
ok, Face, pleasure
60x60
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Photography & graphic design
3D
32x32 Free Design Icons
yes, mark, Apply
32x32
yes, ok, good
ForestGreen
yes
Business & finance
24x24 Free Application Icons
24x24
Pixel
16x16 Free Application Icons
16x16
Flat UI Icons Free
yes, Check, checkmark
Check, Accept, yes
Free 3d Glossy Interface Icon Set
yes, mark, validation
checkmark, Accept, Check
LimeGreen
80x80