Hue - Unlimited design for startups to enterprises
Icons8 - Free app for Mac & Windows already containing 39,800 icons. Allows to search and import icons…
Feather Icons - Simply beautiful open source icons
Humaaans - Mix-&-match illustrations of humans with a design library.
Artboard Studio - Online graphic design app mainly focused on product mockups.
Control Illustrations - 108 free flat illustrations with customizable characters