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Underline Text Generator

Add a continuous underline or double underline to text you can copy anywhere.

Every style updates live as you type. Nothing leaves your browser.

Underline styles
  • Underline
    Single continuous line
    U̲n̲d̲e̲r̲l̲i̲n̲e̲ ̲t̲e̲x̲t̲
  • Double underline
    Two stacked lines
    U̳n̳d̳e̳r̳l̳i̳n̳e̳ ̳t̳e̳x̳t̳

Previews use sample text until you type something.

How to make underlined text

  1. Type your text

    Enter a word or phrase in the box. Both underline styles preview with sample text until you type your own.

  2. Compare single and double

    A single continuous underline and a double underline both render your input, so you can pick the emphasis you want.

  3. Copy your style

    Press copy on the style you like and the underlined text lands on your clipboard with a confirmation.

  4. Paste it anywhere

    Drop it into a bio, caption, or message. It is plain Unicode, so the underline follows the text.

Why use this tool

Single and double underline

A single continuous line for standard emphasis and a double line for a stronger effect, both from one text box.

Marks, not a font

A combining underline mark is placed after each character, so the underline is built into the text and needs no formatting toolbar.

Continuous line

The underline runs beneath spaces as well as letters, so the whole phrase reads with one unbroken line rather than gaps.

Live preview

Both styles update on every keystroke, and a sample phrase fills the previews until you type, so you compare before copying.

Runs entirely in your browser

The conversion is a lookup on the page. Your text is never uploaded, and there is no account to create.

About this tool

An underline text generator adds a line beneath your words by placing a combining Unicode mark after each character. Because the mark attaches to the character before it, the underline becomes part of the text itself and holds up in places that offer no formatting button. It offers a single continuous underline and a double underline for stronger emphasis. The output is plain Unicode text, which is what lets it keep its underline when you copy it into a bio, a caption, a username, or a message.

Most social platforms and chat apps strip real formatting but preserve combining marks, so underlined text usually stays underlined wherever you paste it. The underline runs beneath spaces as well as letters, so a whole phrase reads with one unbroken line. A small caveat: how a combining underline renders depends on the app and font, and a few platforms may show slight gaps between characters or drop the mark, so it is worth checking the result where you plan to use it.

Underlined text is useful for adding emphasis in profiles and comments that lack a formatting toolbar. Use it sparingly for important content, since some screen readers may read the combining marks awkwardly. For related effects, try the strikethrough text tool, add weight with the bold text generator, or explore more looks in the fancy text generator.

Frequently asked questions

How does the underline text generator work?
It places a combining underline mark after each character you type. The mark attaches to the character before it, so the underline is built into the text and can be copied and pasted almost anywhere.
Why do some apps show gaps in the underline?
How a combining underline renders depends on the app and font. Most render one continuous line, but a few may show slight gaps between characters or not display the mark at all, so check the result where you will use it.
Where can I use underlined text?
Anywhere that accepts Unicode text and combining marks, including many bios, captions, and chat apps. Because the underline is part of the text, it carries with the words when they are pasted.
Will underlined text be readable by screen readers?
Be mindful when using it for important content. Combining marks can be announced awkwardly by some screen readers, so underlined Unicode text suits decorative use like bios and headings rather than body copy.
Is my text uploaded anywhere?
No. Everything runs in your browser. Your text is processed on your device and never sent to a server, stored, or logged.

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