Underline Text Generator

Pick the look you want above, then hit Copy. Want every option? Browse all 80+ text styles in the fancy text generator — or see related ones below.

Underline text generator

Want u̲n̲d̲e̲r̲l̲i̲n̲e̲d̲ text somewhere that doesn't have an underline button — an Instagram caption, an X post, a Discord message that ignores markdown? This adds a combining underline mark to each character, so the line travels with the text wherever you paste it. There's a single underline, a double underline (u̳s̳e̳f̳u̳l̳ for a heavier rule), and strikethrough sitting right there in the dropdown since people who want one often want the other. A heads-up that applies to all the combining-mark styles: rendering varies a little by device and font — on some Androids the line sits slightly off, and a few apps collapse spaces oddly — so eyeball the result before you post it. And keep it short: an underlined word is fine; an underlined paragraph is hard to read. For a real web page, use HTML, not this.

How to use it

Type in the box on the left. The style you’ve picked on the right updates as you type — no “generate” button. Click Copy and paste it wherever you need. On the home page you can also browse every style in the list below and click any row to load it into the panel.

Where it renders, and where it breaks

Combining-mark styles like underline are the ones where the device's font matters most — the line gets positioned by whatever font is rendering it, so it can look slightly different from phone to phone.

All of these are real Unicode characters, not images or font files, so the styling travels with the text wherever you paste it. The catch: a few apps with locked-down fonts will draw some glyphs as empty boxes — that's the receiving app, not the text, and switching styles fixes it. Bold (sans), Small Caps and Full-width render the widest. Checked May 2026; platforms change their font handling constantly, so treat the table below as a strong guide, not a guarantee. The full cross-app compatibility page goes wider.

Examples & use cases

Underline where there's no underline button:

• A key term in a caption — Underlining one word — read this style — flags it without the loudness of bold or all-caps, where the app gives you no formatting.
• A 'heading' in a Discord message — Discord has bold and italic markdown but no underline. A double-underlined line stands in for a heading nicely.
• Emphasis in an X bio — A single underlined phrase in a bio reads as deliberate. Keep it to a phrase — an underlined bio is rough to read.
• Strikethrough instead — If you wanted c̶r̶o̶s̶s̶e̶d̶ ̶o̶u̶t̶ rather than underlined, switch to Strikethrough in the dropdown — same combining-mark trick, horizontal line instead of low line.
• Underline + bold — Generate the bold version first, then run that through underline. Don't stack three or four effects though — long mark stacks render badly and some apps choke on them.

Common mistakes

• Don't worry about the underline looking uneven on one phone. Combining marks are positioned by the device's font, so a few fonts place the line a hair high or low around descenders. It's cosmetic and device-dependent — there's no fix from the tool side.
• Don't underline a paragraph. An underlined word or phrase is fine; an underlined paragraph is hard to read and screen readers don't love it. Short, intentional bits only.
• Don't stack lots of combining effects. Underline + strikethrough + something else means many marks per character — long stacks can render badly and get truncated in some apps. One effect, maybe two.
• Don't use it on your website. For web content use real HTML underlining — or better, don't, since underlines usually mean links online. This is for places like social bios that have zero formatting options.

FAQ

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