---
title: "Warning Square Icon | Free Download PNG & SVG | Plump Neon"
product: "Streamline Icons, Illustrations and Elements"
url: /icons/download/warning-square--30945
canonical_url: "https://www.streamlinehq.com/icons/download/warning-square--30945"
summary: "Rounded neon icon of a square with an exclamation mark. Used for warnings, alerts, and error states."
---

# Warning Square icon

The Warning Square icon shows a rounded square outline with a centered exclamation mark. Drawn in the Neon style on a 48px grid with a 3px stroke so its chunky shapes stay clear at small sizes. Use it for warning messages, alerts, validation errors, safety notices, and status indicators. It belongs to Plump Neon set in the Plump family.

## Preview

![Rounded neon icon of a square with 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/plump-neon-style/interface-essential/alerts/warning-square-960thuypotl7gnj1rlu56h.png?_a=DATAiZkSZAA0)

## Details

- **Name**: Warning Square
- **Type**: Icon
- **Set**: [Plump Neon](/icons/plump-neon-style.md) — Plump is highly inspired by cartoons. With its warm appearance, this set of chunky icons is a natural choice for friendly brands. The Neon style is especially effective in complex environments where quick recognition and hierarchy are essential. It also allows you to customize the line thickness. All Plump Neon icons are designed on a 48px grid with a 3px default stroke and two customizable line colors.
- **Family**: [Plump](/icons/plump.md) — Friendly icons
- **Style**: Neon, Stroke
- **Category**: Interface Essential › Alerts
- **Default size**: 48px
- **Stroke width**: 3px
- **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, exclamation, caution, danger, error, important, attention, notification, symbol, frame, square

## Download

- [Download Warning Square on Streamline](https://www.streamlinehq.com/icons/download/warning-square--30945)

## Also available in other styles

- [Warning Square — Plump Flat](/icons/download/warning-square--26137.md) (Pro)
- [Warning Square — Plump Solid](/icons/download/warning-square--25880.md) (Pro)
- [Warning Square — Plump Pop](/icons/download/warning-square--31828.md) (Pro)
- [Warning Square — Plump Duo](/icons/download/warning-square--25953.md) (Pro)
- [Warning Square — Plump Line](/icons/download/warning-square--25621.md) (Pro)
- [Warning Square — Plump Gradient](/icons/download/warning-square--29800.md) (Pro)
- [Warning Square — Plump Remix](/icons/download/warning-square--30156.md) (Pro)

---

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