Add a line under any word, even in apps with no formatting. Pick from 9 underline styles.
Most social apps have no formatting toolbar, so there's nowhere to click for an underline. An underline text generator solves that by placing a combining low line (U+0332) under every character you type. The line travels with the text, so you can paste underlined text into an Instagram bio, a TikTok caption, an X post or a game profile and it keeps its underline.
It's useful when you need emphasis that isn't bold. An underline is quieter than bold and doesn't change the shape of the letters.
| Style | Mark | Example |
|---|---|---|
| Underline | U+0332 | u̲n̲d̲e̲r̲l̲i̲n̲e̲ |
| Double underline | U+0333 | d̳o̳u̳b̳l̳e̳ |
| Wavy underline | U+0330 | w̰a̰v̰y̰ |
| Dotted underline | U+0324 | d̤o̤t̤s̤ |
| Arrow underline | U+034E | a͎r͎r͎o͎w͎ |
| Overline | U+0305 | o̅v̅e̅r̅ |
There are also two combo styles: bold sans letters with an underline, and cursive with an underline. They suit headings in a long caption.
Each letter carries its own short piece of line. Whether those pieces join into one smooth line depends on your device's font. On many phones the line looks continuous, but on some fonts you'll see tiny gaps between letters. Double underline usually looks the most solid.
Our basic underline also covers spaces, so the line runs under the whole phrase. The wavy, dotted and arrow styles skip spaces to keep words separate.
People are used to underlined text being a link, so they may try to tap it. Underline one key word or a short title, not whole sentences, so readers don't get confused.
For edits and corrections, the strikethrough text generator puts the line through the middle. Heavier emphasis comes from the bold text generator, and our WhatsApp fonts page covers the formatting WhatsApp already supports.