ToolsPopper's Underline Text Generator applies combining underline marks to every character in your input — creating underlined plain text you can copy into Instagram, Discord, Twitter/X, and other apps that do not offer native underline formatting in bios or posts.
What is the Underline Text Generator?
Styling runs entirely in your browser. Captions, usernames, and private messages never leave your device.
When to use underline text
- Social bios — emphasize a keyword or link line without rich-text editors
- Discord messages — stand-out underlined phrases in servers that support Unicode
- Marketing copy — draw attention to offers in plain-text email subjects
- Notes and journals — highlight terms in apps that only accept plain text
How the Underline Text Generator works
Type or paste text into the input field. The tool inserts a Unicode combining low line character (U+0332) after each letter, producing a continuous underline effect across the string. Output updates live and copies with one click.
How to underline text online
- Enter the word or phrase you want underlined.
- Preview the Unicode-underlined output below.
- Click copy and paste into your target app.
- Style unlimited phrases — free, no signup.
ToolsPopper vs LingoJam Underline and similar tools
- Live preview as you type — LingoJam requires navigating to a generate step
- Unlimited free generation — no ads blocking the copy button
- 100% private browser processing — phrases styled locally, never logged remotely
- Clean single-purpose UI — underline only, no unrelated font tabs
- No signup — open and underline immediately
More free text manipulation on ToolsPopper
Underline Text works even better alongside our other utilities. Try Text Repeater, Strikethrough Text and Upside Down Text — every tool in our Text Manipulation collection is free, runs without signup, and keeps your data private.