100% Free

Underline Text Generator

Add underlines to your text using Unicode combining characters. Works on platforms that don't support formatting.

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How to Use This Tool

  1. 1Enter your text in the input field
  2. 2Your text automatically gets underlined
  3. 3Copy the underlined text with one click
  4. 4Paste it on any social media platform

Pro Tips

Emphasize important text

Use underlines to draw attention to key words or phrases.

Works where HTML doesn't

Perfect for platforms like Twitter and Instagram that don't support text formatting.

Combine with other styles

You can combine underline with other transformations for unique effects.

Great for titles

Underline your post titles or headers to make them stand out.

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Create Underlined Text for Any Platform

Underlining text online used to require HTML or rich text editors. Now you can add underlines anywhere with Unicode combining characters. Our generator attaches the combining low line character (U+0332) to each letter, creating the appearance of continuous underlining across your text.

Underlined text stands out in feeds full of plain text. Use it to emphasize key points in captions, highlight important dates or names in announcements, or make your bio pop. The visual break from normal text naturally draws the eye, giving you an edge in the scroll.

Instagram bios and Twitter profiles are prime spots for underlined text. Since these platforms strip most formatting, Unicode underlines are one of the few ways to add visual emphasis. Pair it with other text styles for a more elaborate aesthetic profile.

The underline sits below the baseline of each character, so it looks slightly different from traditional word processor underlining. Letters with descenders like g, j, p, q, and y might have the line intersect with their tails. This is normal Unicode behavior and actually adds character.

Copy the output directly from our generator and paste wherever you need it. The underline travels with your text across platforms, email, documents, and messaging apps. No installation required, and it works on both desktop and mobile devices.

Key Features:

  • Unicode-based underlining that works everywhere
  • Perfect for Instagram bios and social media profiles
  • Real-time text transformation as you type
  • Compatible with letters, numbers, and most symbols
  • One-click copy button for instant use
  • Works on mobile and desktop browsers

Frequently Asked Questions

We add the Unicode combining low line character (U+0332) after each letter to create an underline effect.
Instagram and many social platforms don't support text formatting. Unicode underlines work around this limitation.
Unicode underlines work on most modern devices and operating systems.
The underline combining character works best with letters and numbers.

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