---
title: "App Window Warning Icon | Free Download PNG & SVG | Ultimate Colors"
product: "Streamline Icons, Illustrations and Elements"
url: /icons/download/app-window-warning--19679
canonical_url: "https://www.streamlinehq.com/icons/download/app-window-warning--19679"
summary: "Playful creative icon of a browser window with a warning triangle and exclamation mark. Used for browser errors and alerts."
---

# App Window Warning icon

The App Window Warning icon shows a browser-style window with three dots, a blue pane, and a yellow warning triangle with an exclamation mark. Drawn in the creative style on a 24px grid with a 1px stroke so its colorful layered forms stay clear at small sizes. Use it for browser errors, website status alerts, application warnings, and system notification states. It belongs to Ultimate Colors set in the Ultimate family.

## Preview

![Playful creative icon of a browser window with a warning triangle and exclamation mark. Used for browser errors and alerts.](https://assets.streamlinehq.com/image/private/w_240,h_240,ar_1/f_auto/v1/icons/apps-windows/app-window-warning-i72yxs246c49rn1mw7d7.png/app-window-warning-sp6j1valp1dvki2jwc1dv8.png?_a=DATAiZkSZAA0)

## Details

- **Name**: App Window Warning
- **Type**: Icon
- **Set**: [Ultimate Colors](/icons/streamline-colors.md) — Ultimate is the world's largest icon family. The Multicolor version brings a playful, flexible look by combining colored outlines with filled shapes.
- **Family**: [Ultimate](/icons/ultimate-sets.md) — The encyclopedia of icons
- **Style**: Creative, Stroke, Filled
- **Category**: Coding Apps Websites › Apps Windows
- **Default size**: 24px
- **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**: app, window, warning, alert, notification, exclamation, caution, error, attention, webpage, interface, layout, browser, page, website, detect, threat, issue, bug, danger

## Download

- [Download App Window Warning on Streamline](https://www.streamlinehq.com/icons/download/app-window-warning--19679)

## Also available in other styles

- [App Window Warning — Ultimate Duotone](/icons/download/app-window-warning--15853.md) (Pro)
- [App Window Warning — Ultimate Light](/icons/download/app-window-warning--8350.md) (Pro)
- [App Window Warning — Ultimate Regular](/icons/download/app-window-warning--9081.md) (Pro)
- [App Window Warning — Ultimate Bold](/icons/download/app-window-warning--7619.md) (Pro)

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