---
title: "Extension Icon | Free Download PNG & SVG | Rounded Line - Streamline Material"
product: "Streamline Icons, Illustrations and Elements"
url: /icons/download/extension--32923
canonical_url: "https://www.streamlinehq.com/icons/download/extension--32923"
summary: "Rounded line icon of a puzzle piece with tabs and notches. Used for browser extensions, plugins, add-ons, and modular tools."
---

# Extension icon

The Extension icon shows a rounded puzzle-piece outline with alternating tabs and notches. Drawn in the rounded line style on a 24px grid, its open spacing keeps the shape clear in Material-style interfaces. Use it for browser extensions, plugins, add-ons, modular tools, and integration settings. It belongs to Rounded Line - Streamline Material set in the Streamline Material family.

## Preview

![Rounded line icon of a puzzle piece with tabs and notches. Used for browser extensions, plugins, add-ons, and modular tools.](https://assets.streamlinehq.com/image/private/w_240,h_240,ar_1/f_auto/v1/icons/common-actions/extension-393b5.png?_a=DATAiZkSZAA0)

## Details

- **Name**: Extension
- **Type**: Icon
- **Set**: [Rounded Line - Streamline Material](/icons/material-pro-rounded-line.md) — Material Pro Rounded Line variant features rounded corner styles in line format, following Google's Material Design with enhanced coverage and consistency.
- **Family**: [Streamline Material](/icons/material-pro.md)
- **Style**: Line, Outlined, Geometric
- **Category**: Common Actions › Common Actions
- **Default size**: 24px
- **Pricing**: Pro
- **License**: [Commercial](https://home.streamlinehq.com/license-premium)
- **Author**: [Streamline](https://home.streamlinehq.com/)
- **Formats**: PNG, WEBP, PDF, SVG, JSX
- **Tags**: extension

## Download

- [Download Extension on Streamline](https://www.streamlinehq.com/icons/download/extension--32923)

## Also available in other styles

- [Extension — Outlined Line - Streamline Material](/icons/download/extension--32253.md) (Pro)
- [Extension — Sharp Line - Streamline Material](/icons/download/extension--32882.md) (Pro)

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