Adobe Photoshop    

photoshop.com

Getty Images    

gettyimages.com

Fiverr    

fiverr.com

Shutterstock    

shutterstock.com

iStock    

istockphoto.com

Gnomon Workshop    

thegnomonworkshop.com

Fotolia  

fotolia.com

Iconfinder  

iconfinder.com

TurboSquid    

turbosquid.com

Flaticon  

flaticon.com

Colourbox    

colourbox.com

Tiled Map Editor  

mapeditor.org

FroGames  

frogames.net

Newgrounds

newgrounds.com

Open Game Art

opengameart.org

Kameleon

kameleon.pics

PixShark

pixshark.com

png img

pngimg.com

PSDgraphics

psdgraphics.com

Reiner's Tilesets

reinerstilesets.de

MyIconFinder

myiconfinder.com

Lost Garden

lostgarden.com

Spriteloq

loqheart.com

Round Icons

roundicons.com

Simple Icon

simpleicon.com

Soft Icons

softicons.com

IconScout

iconscout.com

StickPNG

stickpng.com

StockFresh

stockfresh.com

SVG Repo

svgrepo.com

ThinkStock

thinkstockphotos.com

Toon Characters

tooncharacters.com

Vecteezy

vecteezy.com

VectorStock

vectorstock.com

ViralDot

viraldot.com

Game Art Guppy

gameartguppy.com

3D Studio

the3dstudio.com

Bankkita

bankkita.com

Blend Swap

blendswap.com

CGTrader

cgtrader.com

Clipart Of

clipartof.com

Desktop Icon

desktop-icon.com

Dusk Engine

gymbyl.com

Find Icons

findicons.com

Fox Graphics

fox.graphics

Freepik

freepik.com

Game Art 2D

gameart2d.com

Isometric Maps

isometricmaps.com

Game Icons

game-icons.net

Graphic Buffet

graphic-buffet.com

Gumbo

nerderer.com

Icon Archive

iconarchive.com

Icon Shock

iconshock.com

Icons Download

iconsdownload.net

Icons ETC

icons.mysitemyway.com

3D Ocean

3docean.net

Illustrator

adobe.com

Inkscape

inkscape.org

Ionicons

ionicons.com