Underline Letters A–Z
Underline: what it is and how it looks
Underline text draws a line beneath every character: C̲u̲r̲s̲i̲v̲e̲ ̲T̲e̲x̲t̲. It is built from the combining low line (U+0332) attached to each letter — genuine Unicode rather than formatting, so the underline persists in Instagram captions, YouTube descriptions, Discord messages and any other field that strips rich text.
How the underline generator works
The generator attaches the underline mark to everything you type, including spaces, producing an unbroken rule beneath your words. Because decoration layers on top of your original text, it works with any language, numbers and emoji — and combines with other style generators for underlined bold or underlined cursive.
Where to use underline
Underlining is the oldest form of typographic emphasis, and in plain-text fields it still wins: key terms in captions, links-adjacent text in bios, karaoke-style lyric highlights, and study notes where crucial definitions must jump off the page. Simple, human and still working after five centuries of emphasis — few styles age that well.
Tips and combinations
Underlining dates back to handwritten manuscripts, when scribes emphasised passages they could not re-ink in bold. That history makes underlined text feel slightly formal, slightly editorial — a good fit for price points, deadlines and key terms in a caption. For study notes, underlining definitions you keep forgetting is the plain-text equivalent of a highlighter, and it survives copy-paste between every notes app you will ever use.
Frequently Asked Questions
How do I underline text on social media?
No formatting bar needed: type your text above, copy the underlined version, and paste it anywhere. The underline is part of each Unicode character, so it survives apps that strip formatting.
Can I underline and strikethrough the same text?
Yes — run your text through both generators in sequence. Each attaches its own combining mark, producing letters with a line through and beneath them.
Why do gaps appear under some letters?
The underline is a combining character whose rendering depends on the app's font. Most platforms draw it continuously; a few show tiny gaps between characters — a rendering quirk inherent to Unicode decoration.