Underline Text Generator
Underlined, double-underlined and wavy text you can paste where apps have no underline button.
Last updated by the FreeAIToolsBox Team
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Quick answer: An underline text generator adds a Unicode combining underline under every character, so the line travels with the text when you copy and paste it. Use it in apps without an underline button, such as Instagram, Facebook, WhatsApp and X.
Underline Text Generator: Copy and Paste Underlined Text Anywhere
Most apps have no underline button. This underline generator adds the line with Unicode, so underlined text pastes into Instagram, Facebook, WhatsApp, X and comments.
How Unicode Underline Text Works
Unicode has a combining low line, U+0332, that attaches under the character before it. This page adds it after every letter: u̲n̲d̲e̲r̲l̲i̲n̲e̲. The double style uses U+0333, the double low line. Because these marks are part of the text, the underline font look stays when you paste it.
How to Underline Text
Type Your Text
Enter the words you want underlined in the box at the top.
Choose a Line
Pick a single, double or wavy underline, with plain, bold, italic or script letters.
Copy and Paste
Tap Copy and paste the underlined text into your app.
Underline Styles Compared
Here is how Your Name looks in some of the most popular styles on this page:
| Style Variant | Standard Input | Transformed Output | Best For |
|---|---|---|---|
| Underline | Your Name | Y̲o̲u̲r̲ N̲a̲m̲e̲ | Single underline under plain letters |
| Double Underline | Your Name | Y̳o̳u̳r̳ N̳a̳m̳e̳ | Double underline for strong emphasis |
| Bold Underlined | Your Name | 𝐘̲𝐨̲𝐮̲𝐫̲ 𝐍̲𝐚̲𝐦̲𝐞̲ | Bold letters with an underline |
| Italic Underlined | Your Name | 𝑌̲𝑜̲𝑢̲𝑟̲ 𝑁̲𝑎̲𝑚̲𝑒̲ | Italic letters with an underline |
| Cursive Underlined | Your Name | 𝒴̲ℴ̲𝓊̲𝓇̲ 𝒩̲𝒶̲𝓂̲ℯ̲ | Script letters with an underline |
| Monospace Underlined | Your Name | 𝚈̲𝚘̲𝚞̲𝚛̲ 𝙽̲𝚊̲𝚖̲𝚎̲ | Monospace with an underline for code notes |
Where Underlined Text Helps
- Instagram and Facebook posts: underline a title or a key line.
- WhatsApp: it has bold, italic and strikethrough codes but no underline, so pasted Unicode is the way to do it.
- Discord: you can also type __underline__ with Markdown.
- Notes and bios where you want a heading look.
To cross words out instead, use the strikethrough text generator.
Display Tips
- Some fonts draw the line in short pieces, so it can look slightly broken between letters.
- Spaces get an underline too; remove the mark after spaces if you want gaps.
- Underlined words can look like links, so avoid underlining text that is not a link in long posts.
Explore All 36 Stylish Font Generators
Looking for another style? Return to the Stylish Fonts Generator hub or open a related tool:
Frequently Asked Questions
Q01How do I underline text on Instagram?
Instagram has no underline option. Type your text here, copy an underline style and paste it into your caption or bio.
Q02Can you underline text in WhatsApp?
WhatsApp has no underline code. Copy underlined text from this page and paste it into your chat, status or About.
Q03What is the Unicode character for underline?
The combining low line, U+0332, adds a single underline under the previous character. The combining double low line, U+0333, adds a double underline.
Q04Why does my underline look broken?
The underline is drawn separately for each character, and some fonts leave small gaps. The bold underlined style usually looks the most continuous.
Q05Does underlined text work on X (Twitter)?
Yes. X shows the combining underline in posts and bios, but each underlined letter uses extra characters toward the limit.
Q06Is the underline generator free?
Yes. It is free with no sign-up, app or watermark.