What IconPark Outline is
IconPark Outline is ByteDance's open-source icon library, built around an unusual idea: each icon exposes multiple theme properties — outline, fill, two-tone, and multi-colour — from a single component, with colours configurable at runtime rather than baked into the asset.
The 2,658 outline icons are drawn on a 24×24 grid with a clean, slightly rounded construction. What distinguishes IconPark is the component API: you can switch an icon between outline, filled, two-tone, and four-colour treatments with a prop, and set each colour independently.
IconStash indexes the complete IconPark Outline collection. You can search it alongside 27 other libraries, preview any icon at any size and colour, and export SVG, PNG, React JSX, Vue, CSS, or an SVG sprite without installing a package or creating an account.