Underline Text Generator
Add u̲n̲d̲e̲r̲l̲i̲n̲e̲ to your text using Unicode combining characters. Works anywhere online.
Examples
Normal
Hello World
Underlined
H̲e̲l̲l̲o̲ ̲W̲o̲r̲l̲d̲
What Is an Underline Text Generator?
This tool adds underlines to your text using Unicode combining characters (U+0332 for single underline, U+0333 for double). Unlike HTML <u> tags, these underlines are part of the text itself — they work on Instagram, Twitter/X, Discord, WhatsApp, and anywhere that accepts plain text.
The combining character sits beneath each letter, creating a continuous underline effect. This makes your text stand out on platforms that don't support HTML or rich text formatting.
Use Cases
- Social media emphasis: Underline important words in bios, posts, and comments
- Headings and titles: Make titles stand out with underline formatting
- Chat messages: Highlight key points in Discord, WhatsApp, or Telegram
- Book and movie titles: Properly format titles that require underlining
- Usernames: Create unique underlined display names for gaming and social platforms
- Annotations: Mark important text in notes and documents
How to Use
- Type or paste your text in the input box
- See underlined output appear instantly
- Click Copy to copy to clipboard
- Paste anywhere — social media, chat apps, or any text field
Frequently Asked Questions
How does Unicode underline work?
The tool appends Unicode combining character U+0332 after each character. This special character tells the text renderer to draw a line beneath the preceding character, creating a continuous underline effect.
Does underline text work on Instagram?
Yes. Unicode combining characters are supported on Instagram in bios, captions, comments, and DMs. The underline displays correctly on both iOS and Android devices.
Is this different from HTML underline?
Yes. HTML uses <u> tags which only work on web pages. Unicode underline works everywhere — social media, chat apps, email, and text files.
Can I combine underline with bold or italic?
You can first generate bold or italic text using our other tools, then paste it here to add underline on top. Combining characters stack, so both effects will display.
Is this tool free?
Yes, completely free with no limits. No account, no ads. All processing happens in your browser.