The Noun Project - Creating, Sharing and Celebrating the World's Visual Language
Feather Icons - Simply beautiful open source icons
Icons8 - Free app for Mac & Windows already containing 39,800 icons. Allows to search and import icons…
IconStore - Free icon packs by first-class designers
Nucleo - Commercial vector icons and accompanying apps to manage and customize them.
Fluent Icons by Icons8 - Colorful and stylish icons for your projects