Underline Text Generator

When underlining makes sense

Underline comes from typewriters and handwriting, where it was the only way to emphasize a word. In typeset text, italics and bold took over that job, and on the web underline came to mean “this is a link”. So use it on purpose:

• Titles and headings in a caption, where bold feels too heavy: “M̲e̲n̲u̲”, “R̲u̲l̲e̲s̲”.
• Signatures and sign-offs in posts and messages.
• Highlighting one key phrase in a long caption that has no other formatting.

How it behaves

Every character, including spaces and punctuation, gets one combining low line, so the underline runs continuously from the first to the last character. Line breaks are kept and do not get a line, so multi-line text is underlined line by line. Emoji are left as they are. Accented letters work: é keeps its accent and gets the line below.

If you paste text that is already underlined, the generator removes its own underline marks first, so you never end up with doubled lines.

The exact look depends on the font of the app: on most phones the line sits just under the letters, with very small gaps between characters in some fonts.

Common mistakes

• Underlining long text. A continuous line under several sentences is heavy and slows reading. Keep it to a few words.
• Expecting the line to skip descenders. The tails of g, p and y are crossed. Choose words without them for headings if that bothers you.
• Doubling the character count. Each underlined character counts as two. An Instagram bio of 150 characters fits about 75 underlined characters.
• Using it for important details. Screen readers may announce “combining low line” after every letter or skip the text entirely. Keep dates, prices and contact details plain.