Add Underline to Text
Free online text underline generator. Add underlines to text using unicode combining characters in 20+ styles.
About This Free Online Add Underline to Text
Our free underline text generator turns ordinary text into underlined characters you can paste into social media bios, posts, usernames, and messages. It works by adding a Unicode combining underline to each character, so the line stays attached to the text even on platforms like Instagram, Twitter/X, TikTok, Discord, and Facebook that do not support normal formatting. Type your text and the underlined version appears instantly, ready to copy with one click. People use it to emphasize a word, add style to a profile, or make a message stand out where bold and italic are not available. Because these are real characters rather than formatting, they travel anywhere plain text is accepted. Everything runs in your browser with no signup and nothing sent to a server.
Features of Our Add Underline to Text
- 20+ underline styles using Unicode combining characters
- Skip whitespace option for cleaner output
- Each style shown as a preview card
- Per-style copy button for individual styles
- Real-time text input with live preview cards
How to Use the Add Underline to Text
The Add Underline to Text works right in your browser — no signup, no installation. Follow these steps:
- Type or paste text you want to underline.
- Toggle "Skip Whitespace" if desired.
- Browse the style cards and click Copy on any style you like.
- Paste the underlined text wherever you need it.
Frequently Asked Questions About Add Underline to Text
How does the underline effect work?
The tool uses Unicode combining characters (U+0300-U+036F range) placed after each character. These combine with the preceding character in supporting apps and browsers to create the underline effect.
Will the underlines appear in all applications?
Unicode combining characters work in most modern applications including social media, messaging apps, and word processors. However, some older systems or specialized software may not render them correctly.
Why Choose the Add Underline to Text?
The Add Underline to Text produces exactly what you need on demand, with options that put you in control of the output. Generation happens in your browser, so it is instant, repeatable, and completely private — nothing is uploaded.