---
title: "Check Square Icon | Free Download PNG & SVG | Flex Duo - Free"
product: "Streamline Icons, Illustrations and Elements"
url: /icons/download/check-square--26837
canonical_url: "https://www.streamlinehq.com/icons/download/check-square--26837"
summary: "Rounded duotone icon of a checkmark inside a rounded square. Used for confirmations, selection, and completed tasks."
---

# Check Square icon

The Check Square icon shows a bold checkmark inside a softly rounded square. Drawn in the duotone style on a 14px grid with a 1px stroke for a fluid, rounded look. Use it for confirmations, selection controls, completed tasks, checklists, and validation states. It belongs to Flex Duo - Free set in the Flex family.

## Preview

![Rounded duotone icon of a checkmark inside a rounded square. Used for confirmations, selection, and completed tasks.](https://assets.streamlinehq.com/image/private/w_300,h_300,ar_1/f_auto/v1/icons/interface-essential/check-square-l58pdfu652muqp0vubv1vm.png/check-square-9ub9pssd8s73wd1obguhkr.png?_a=DATAiZkSZAA0)

## Details

- **Name**: Check Square
- **Type**: Icon
- **Set**: [Flex Duo - Free](/icons/flex-duo-free.md) — [Free + Open-source] 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. Licensed under the Creative Commons - CC BY 4.0
- **Family**: [Flex](/icons/flex.md) — Fluid icons
- **Style**: Duo
- **Category**: Interface Essential › Interface Essential
- **Default size**: 14px
- **Stroke width**: 1px
- **Pricing**: Free
- **License**: [Free](https://home.streamlinehq.com/license-free)
- **Author**: [Streamline](https://home.streamlinehq.com/)
- **Formats**: PNG, WEBP, PDF, SVG, JSX
- **Tags**: check, square, checkmark, checkbox, verified, approve, confirm, selected, approved, validation, accept, success, okay, completed, done, addition, add, box, form, tick

## Download

- [Download Check Square on Streamline](https://www.streamlinehq.com/icons/download/check-square--26837)

## Also available in other styles

- [Check Square — Flex Flat - Free](/icons/download/check-square--26854.md) (Free)
- [Check Square — Flex Neon - Free](/icons/download/check-square--31955.md) (Free)
- [Check Square — Flex Gradient - Free](/icons/download/check-square--29611.md) (Free)
- [Check Square — Flex Remix - Free](/icons/download/check-square--29613.md) (Free)
- [Check Square — Flex Line - Free](/icons/download/check-square--26801.md) (Free)
- [Check Square — Flex Pop - Free](/icons/download/check-square--31939.md) (Free)
- [Check Square — Flex Solid - Free](/icons/download/check-square--26818.md) (Free)

---

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