Underline Square
The underline-square icon represents a text formatting option used to add emphasis to written content by drawing a line underneath the text within a square or rectangular box.
Exports at 24 × 24 px
Code
Underline Square in your framework
In any framework. Customize it above, and the code follows.
export const UnderlineSquareIcon = (props: React.SVGProps<SVGSVGElement>) => (
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" {...props}>
<g fill="none" stroke="currentColor" strokeWidth="1.5"><path d="M3 20.4V3.6a.6.6 0 0 1 .6-.6h16.8a.6.6 0 0 1 .6.6v16.8a.6.6 0 0 1-.6.6H3.6a.6.6 0 0 1-.6-.6Z"/><path strokeLinecap="round" strokeLinejoin="round" d="M16 6v4a4 4 0 0 1-4 4v0a4 4 0 0 1-4-4V6M6 18h12"/></g>
</svg>
);Other libraries
Underline Square in 1 more libraries
Each library draws it its own way. Open one to compare.
Iconoir
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Underline Square is tagged UI, design, editing and 3 more. Related tags follow; each opens its icons from every library.
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FAQ
Frequently asked questions
What the Underline Square icon means and where it's used, then how to install, style, label and license it.
The underline-square icon represents a text formatting option used to add emphasis to written content by drawing a line underneath the text within a square or rectangular box. This formatting style is commonly used in digital communication to highlight important information or to indicate a hyperlink.
In digital platforms, the underline-square icon is often used in text editors, word processors, and design software such as Microsoft Word, Google Docs, and Figma. It is also commonly used in web development to create visually appealing and accessible content.
From a UX perspective, the underline-square icon communicates that the text is clickable or editable, and it helps users understand the functionality of the interface. It also provides a visual cue for users to distinguish between regular text and hyperlinks.
Underline Square is one of 1,682 icons in Iconoir, made by Luca Burgio and released under MIT. It is drawn on a 24 × 24 grid with a 1.5 stroke.
Sign in (it's free), then open Get icon, Install with shadcn CLI, and pick your package manager to copy the command. It adds UnderlineSquareIcon to components/icons/iconoir-underline-square.tsx: one file, a size prop (24 by default) and every SVG prop, with no icon package.
Copy it as React (from Get icon, or the Code section): a typed UnderlineSquareIcon component you paste into your project, with no package to install. Only the icons you import reach your bundle. It works in Next.js and any React app.
Open Get icon, then Copy as code, and pick Vue, Svelte, Angular, Solid or Preact; the Code section shows each one too. Every version is one self-contained component with the SVG inside, and SVG and data URL copies are there for plain HTML and CSS.
With Pro, the shadcn.io MCP server lets Claude Code, Cursor or any MCP client find the Underline Square icon, or any of 1,682 Iconoir icons, and install it from a prompt.
It's drawn in currentColor, so it takes the text color wherever you use it: a class like text-primary recolors it. To bake a color in, set one in Customize before you copy.
Set width and height on the component, or a class like size-6. It's drawn on a 24 × 24 grid, so it stays sharp at any size. Customize also sets the size it exports at, its padding and rotation, and its stroke.
Underline Square is a line icon drawn with a stroke width of 1.5. Change it in Customize before you copy, or pass strokeWidth to the installed component when all of its strokes share one width.
Yes. It follows the text color, so with text-foreground (or any theme token) it changes with your light and dark themes. The icon is a vector, so it needs no separate dark asset.
Next to a visible label it's decoration: add aria-hidden="true" so screen readers skip it. Standing alone, as in an icon button, give the button a name instead, like aria-label="Underline Square", so screen readers say what it does.
Yes. UnderlineSquareIcon passes every SVG prop to the svg element, so <UnderlineSquareIcon aria-hidden="true" /> works, and so do role="img" with aria-label, or a title child, when it carries meaning on its own.
Yes. Open Get icon, then Download file: SVG for code or design tools like Figma; PNG, WebP or JPEG at 512px; or an ICO favicon with 16, 32 and 48px inside. Each one uses what you set in Customize.
Yes. MIT allows commercial use; keep the license notice when you ship the icons' source files. The full terms are in the license, linked on this page.
No visible credit is required: MIT only asks that you keep the license notice if you ship the icons' source files. Icons installed with the shadcn CLI already start with a comment naming Iconoir, Luca Burgio and the license.
Yes. Copying and downloading it is free, and the shadcn CLI install only needs a free account.
1 other library draws an icon called Underline Square. The Other libraries section on this page shows each one, so you can compare them and open the one that fits your style.
Its tags are UI, design, editing, typography, text and formatting. Each tag page lists the icons that carry it from every library, which is the quickest way to find a match for Underline Square in another set.
Iconoir draws many icons in several styles: Solid next to the default. Open the library and pick a style above the grid to see Underline Square's siblings in it.
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