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Desktop apps
3D
Free Social Media Icons
speech, about, Bubble
DodgerBlue
512x512
Comments, Communication, sms
telephone, Chat, Call
LightSkyBlue
Message, Chat, announcement
LimeGreen
Photography & graphic design
32x32 Free Design Icons
forum, talk, speech
Lavender
32x32
Gaming & gambling
Photorealistic
48x48 Free Object Icons
forum, Chat, Comment
SkyBlue
48x48
Chat, messages, Messenger
Black
messages, Message, Chat
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Business & finance
Pixel
24x24 Free Pixel Icons
SteelBlue
24x24
forum, Social, talk
Messenger, Message, Chat
Glyph
24x24 Free Application Icons
speech, Social, Talking
CornflowerBlue
Talking, voice, messages
PaleTurquoise
Network & communications
16x16 Free Application Icons
Message, mark, support
16x16
speech, Message, Messenger
Chat, Message, messages
Mixed
Flat
20 Flat Icons
Bubble, Chat
YellowGreen
128x128
Social media
Win8 and iOS Tab Bar Icons - free
Communication, Facebook, Like
60x60
UI
Flat UI Free
Chat
Tomato
200x200
Flat Jewels Icon Set
Smooth
iOS 7-inspired Mac icon set
messages, Chat
1024x1024
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Pittogrammi
Chat, talk
Snipicons
reply, Chat