What this style means
Outline icons are stroke-based icons with no fill, drawn as open paths on a consistent grid. IconStash classifies icons by style across all 28 indexed libraries, so you can hold the weight constant and compare how different design teams solve the same icon.
When to use them. Outline icons read as light and technical. They suit dense interfaces, dashboards, and any layout where a filled icon would feel heavy. Watch contrast on coloured or photographic backgrounds — thin strokes can disappear.
Every icon below links to a page with the full SVG source, a live preview you can recolour and resize, PNG export at six sizes, and a ready-to-paste React snippet.
What are outline icons?
Outline icons are stroke-based icons with no fill, drawn as open paths on a consistent grid. IconStash indexes 56,623 of them across 26 open-source libraries, so you can compare the same drawing style as interpreted by different design teams.
When should I use outline icons?
Outline icons read as light and technical. They suit dense interfaces, dashboards, and any layout where a filled icon would feel heavy. Watch contrast on coloured or photographic backgrounds — thin strokes can disappear.
Which libraries include outline icons?
On IconStash the strongest coverage comes from Fluent UI Icons (9,254), Huge Icons (5,095), Tabler Icons (4,842). Open any library hub to see its full style range alongside install instructions.
Can I export outline icons as PNG?
Yes. Every icon on IconStash exports to PNG at 16, 32, 64, 128, 256, or 512 pixels, generated in the browser from the original vector so it stays crisp at any size. You can also copy the raw SVG, export a React component, or build an SVG sprite.
Are these outline icons free for commercial use?
The libraries indexed here are MIT, Apache 2.0, CC BY 4.0, or CC0 licensed, all of which permit commercial use. CC BY sets such as Solar Icons require attribution — check the license shown on each icon page if you cannot provide credit.