Control Illustrations - 108 free flat illustrations with customizable characters
Humaaans - Mix-&-match illustrations of humans with a design library.
404 Illustrations - Open-source catchy illustrations for perfect error pages
150+ Free Illustrations & Animations - MIT Licensed to use for free in your next commercial project
Ouch! Illustrations by Icons8 - Professional, perfectly matching, and customizable illustrations for any designs
Simple illustrations - 34 Hand-crafted illustrations perfect for your websites and applications, ready to use within seconds.