Alert Warning Triangle black outline icon
Rounded triangle containing an exclamation mark, a warning sign
About the Alert Warning Triangle black outline icon
An upward triangle with softly rounded corners holds a vertical stroke above a short dot, forming a centered exclamation mark. It is the standard shape for caution, so it reads correctly without a caption in any language. Apply it to form validation errors, system and browser warning dialogs, hazard labels on packaging, machinery safety plates and roadside or construction site notices.
The triangle is close to equilateral with generous inner margin, and the exclamation stroke is thick enough to stay solid when the whole mark is scaled down to toolbar size. It pairs with the info, error circle and question mark icons in the library. Keep the surrounding padding clear so the corners stay sharp.
This is the black outline version of the alert warning triangle icon: even, monoline strokes that stay crisp at small sizes and suit clean, minimal interfaces, wireframes and light backgrounds.
It downloads free as an SVG vector or transparent PNG in seven sizes, and the free online editor lets you recolor it, apply gold, silver, neon and gradient styles, add animation, or convert it to EPS, PDF and DXF.
Free for personal and commercial use with attribution.
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