---
title: "Warning Square Icon | Free Download PNG & SVG | Sharp Line"
product: "Streamline Icons, Illustrations and Elements"
url: /icons/download/warning-square--25015
canonical_url: "https://www.streamlinehq.com/icons/download/warning-square--25015"
summary: "Sharp line icon of a square outline containing an exclamation mark. Used for warnings, alerts, and error states."
---

# Warning Square icon

The Warning Square icon shows a square outline containing a centered exclamation mark. Drawn in the Sharp Line style on a 24px grid with a 2px stroke for crisp geometric clarity. Use it for warning messages, error states, validation alerts, safety notices, and system status indicators. It belongs to Sharp Line set in the Sharp family.

## Preview

![Sharp line icon of a square outline containing an exclamation mark. Used for warnings, alerts, and error states.](https://assets.streamlinehq.com/image/private/w_240,h_240,ar_1/f_auto/v1/icons/alerts/warning-square-cbja37eu3yv31e5uz1tdw1.png/warning-square-9pcega3u3wckjsfiuvqya.png?_a=DATAiZkSZAA0)

## Details

- **Name**: Warning Square
- **Type**: Icon
- **Set**: [Sharp Line](/icons/sharp-line-style.md) — Sharp combines pure geometry and bold structure for a brutalist, high-tech feel. The Line variant offers clean, geometric strokes.
- **Family**: [Sharp](/icons/sharp-sets.md) — Brutalist icons
- **Style**: Line, Stroke, Geometric
- **Category**: Interface Essential › Alerts
- **Default size**: 24px
- **Stroke width**: 2px
- **Pricing**: Pro
- **License**: [Commercial](https://home.streamlinehq.com/license-premium)
- **Author**: [Streamline](https://home.streamlinehq.com/)
- **Formats**: PNG, WEBP, PDF, SVG, JSX
- **Tags**: warning, square, alert, exclamation, caution, symbol, frame, power, button, switch, electric, control, device, energy, circuit, interface

## Download

- [Download Warning Square on Streamline](https://www.streamlinehq.com/icons/download/warning-square--25015)

## Also available in other styles

- [Warning Square — Sharp Solid](/icons/download/warning-square--25359.md) (Pro)
- [Warning Square — Sharp Remix](/icons/download/warning-square--28697.md) (Pro)
- [Warning Square — Sharp Gradient](/icons/download/warning-square--28036.md) (Pro)
- [Warning Square — Sharp Flat](/icons/download/warning-square--25523.md) (Pro)
- [Warning Square — Sharp Pop](/icons/download/warning-square--31644.md) (Pro)
- [Warning Square — Sharp Neon](/icons/download/warning-square--30690.md) (Pro)
- [Warning Square — Sharp Duo](/icons/download/warning-square--25191.md) (Pro)

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