---
title: "Warning Square Icon | Free Download PNG & SVG | Flex Duo"
product: "Streamline Icons, Illustrations and Elements"
url: /icons/download/warning-square--24559
canonical_url: "https://www.streamlinehq.com/icons/download/warning-square--24559"
summary: "Rounded duotone icon of an exclamation mark in a rounded square. Used for warnings and alerts."
---

# Warning Square icon

The Warning Square icon shows an exclamation mark centered inside a rounded square. Drawn in the duotone style on a 14px grid with a 1px stroke so it keeps its smooth, fluid look. Use it for warning messages, alert banners, validation errors, and status notifications. It belongs to Flex Duo set in the Flex family.

## Preview

![Rounded duotone icon of an exclamation mark in a rounded square. Used for warnings and alerts.](https://assets.streamlinehq.com/image/private/w_240,h_240,ar_1/f_auto/v1/icons/alerts/warning-square-icaaeul5fnq1z7dwwm3bp7.png/warning-square-xj5d00llace5p7wxkq5gb8.png?_a=DATAiZkSZAA0)

## Details

- **Name**: Warning Square
- **Type**: Icon
- **Set**: [Flex Duo](/icons/flex-duo.md) — Flex is all about the curves. Its smooth curves brings fluidity and dynamism to your designs with a modern appeal. The Duo style is perfect for projects that require differentiation between actions, using color to convey meaning effectively. It also allows you to customize the line thickness. All Flex Duo icons are designed on a 14px grid with a 1px default stroke and two customizable colors.
- **Family**: [Flex](/icons/flex.md) — Fluid icons
- **Style**: Duo, Filled, Stroke
- **Category**: Interface Essential › Alerts
- **Default size**: 14px
- **Stroke width**: 1px
- **Pricing**: Pro
- **License**: [Commercial](https://home.streamlinehq.com/license-premium)
- **Author**: [Streamline](https://home.streamlinehq.com/)
- **Formats**: PNG, WEBP, PDF, SVG, JSX
- **Tags**: warning, alert, caution, exclamation, square, symbol, ui, interface, app, button, pause, wait, control, media, player, frame

## Download

- [Download Warning Square on Streamline](https://www.streamlinehq.com/icons/download/warning-square--24559)

## Also available in other styles

- [Warning Square — Flex Line](/icons/download/warning-square--24510.md) (Pro)
- [Warning Square — Flex Remix](/icons/download/warning-square--28514.md) (Pro)
- [Warning Square — Flex Gradient](/icons/download/warning-square--27705.md) (Pro)
- [Warning Square — Flex Flat](/icons/download/warning-square--24720.md) (Pro)
- [Warning Square — Flex Neon](/icons/download/warning-square--30396.md) (Pro)
- [Warning Square — Flex Pop](/icons/download/warning-square--31279.md) (Pro)
- [Warning Square — Flex Solid](/icons/download/warning-square--24350.md) (Pro)

---

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