---
title: "Warning Square Icon | Free Download PNG & SVG | Flex Solid"
product: "Streamline Icons, Illustrations and Elements"
url: /icons/download/warning-square--24350
canonical_url: "https://www.streamlinehq.com/icons/download/warning-square--24350"
summary: "Rounded solid icon of a filled square with curved corners and two white rounded marks. Used for alerts and errors."
---

# Warning Square icon

The Warning Square icon shows a filled rounded square with two vertical white rounded marks. Drawn in the solid style on a 14px grid for a smooth, compact form that stays clear at small sizes. Use it for warning banners, alerts, validation errors, and caution states. It belongs to Flex Solid set in the Flex family.

## Preview

![Rounded solid icon of a filled square with curved corners and two white rounded marks. Used for alerts and errors.](https://assets.streamlinehq.com/image/private/w_240,h_240,ar_1/f_auto/v1/icons/alerts/warning-square-5zp2rgs620lbtoa5fpnj.png/warning-square-px228c55s9oj677jont5i.png?_a=DATAiZkSZAA0)

## Details

- **Name**: Warning Square
- **Type**: Icon
- **Set**: [Flex Solid](/icons/flex-solid-style.md) — Flex is a fluid icon family inspired by nature's curves. The Solid variant features smooth, filled shapes with rounded edges for a friendly, organic aesthetic.
- **Family**: [Flex](/icons/flex.md) — Fluid icons
- **Style**: Solid, Bold, Glyph
- **Category**: Interface Essential › Alerts
- **Default size**: 14px
- **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, frame, button, UI, interface, app, control, media, player, pause, wait

## Download

- [Download Warning Square on Streamline](https://www.streamlinehq.com/icons/download/warning-square--24350)

## Also available in other styles

- [Warning Square — Flex Line](/icons/download/warning-square--24510.md) (Pro)
- [Warning Square — Flex Duo](/icons/download/warning-square--24559.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)

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