Phosphor

Phosphor is a free, MIT-licensed icon family by Helena Zhang and Tobias Fried, with more than 9,000 icons drawn in six weights: thin, light, regular, bold, fill and duotone. Every icon shares one grid and construction, so weights can be mixed to set hierarchy, and official packages cover the web, React, Vue, Flutter and Elm, along with a Figma plugin. Designers who need one set to stretch from delicate interface glyphs to heavy diagram symbols can change weight without changing family.