Underline Text Generator

Add underline to any text using Unicode combining characters. Works on social media and plain text fields.

100% PrivateInstantAny Device

How to Generate Underlined Unicode Text

Add underlines to text for social media and messaging.

1

Enter Your Text

Type or paste the text you want to underline.

2

Click Convert

Press the button to add Unicode underline marks to each character.

3

Preview the Result

See how your underlined text looks in the output box.

4

Copy and Paste

Copy the underlined text and use it on any platform.

Why Use Our Underline Text Generator?

Create underlined text that works in plain text fields.

Instant Processing

Underline text is generated instantly using Unicode combining characters.

100% Private

Your text never leaves your browser. No data is stored or transmitted.

Cross-Platform

Works on social media, messaging apps, emails, and more.

True Underline

Uses Unicode combining underline marks, not HTML or CSS.

One-Click Copy

Copy or download your underlined text with a single click.

No Sign-Up

Start using the tool immediately — no account needed.

Common Use Cases

See how underlined Unicode text is used across platforms.

Social Media Emphasis

Input

Important update

Output

I̲m̲p̲o̲r̲t̲a̲n̲t̲ u̲p̲d̲a̲t̲e̲

Bio Styling

Input

CEO & Founder

Output

C̲E̲O̲ &̲ F̲o̲u̲n̲d̲e̲r̲

Highlight Keywords

Input

Free shipping today

Output

F̲r̲e̲e̲ s̲h̲i̲p̲p̲i̲n̲g̲ t̲o̲d̲a̲y̲

Title Formatting

Input

Chapter One

Output

C̲h̲a̲p̲t̲e̲r̲ O̲n̲e̲

Frequently Asked Questions

The combining underline character (U+0332) is placed after each character in your text. Renderers draw a continuous underline beneath the text. The double underline uses U+0333 for a heavier effect.
Unicode underlined text works on social media (Instagram, Twitter/X, Facebook, TikTok), messaging apps, bios, comments, and anywhere that accepts plain text.
Single underline (U+0332) adds one line beneath each character. Double underline (U+0333) adds a thicker double-line effect beneath each character.
In most fonts and platforms, the combining underline renders as a continuous line. However, some fonts may show slight gaps between characters.
Yes. All processing happens locally in your browser — no data is sent to any server.

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