Open Source Icons

• Feather: simply beautiful open source icons made by colebemis@. MIT License
• Remix Icon: a set of open-source neutral-style system symbols elaborately crafted for designers and developers. Apache License 2.0
• Heroicons: a set of high-quality SVG icons made by steveschoger@. MIT License
• Logos as SF Symbols: a set of custom SF Symbols for social platforms by jeremieb@. Apache License 2.0

Other inspirations

• Jim Nielsen's macOS Icon Gallery and iOS Icon Gallery
• Icons designed by Adam Whitcroft.