Bold Underline Text Generator
Copy and paste bold underline Unicode text for Instagram, TikTok, Discord, and other supported apps.
11/500
30px
Bold Underline
21 chars𝐇̲𝐞̲𝐥̲𝐥̲𝐨̲ 𝐖̲𝐨̲𝐫̲𝐥̲𝐝̲
Works on These Platforms
Similar fonts you might like
Try another vibe using the same saved text.
Bold Text
𝐇𝐞𝐥𝐥𝐨 𝐖𝐨𝐫𝐥𝐝
Mathematical bold Unicode letters that appear bold on any platform.
Underline Text
H̲e̲l̲l̲o̲ W̲o̲r̲l̲d̲
Underlined text using Unicode combining underline diacritics.
Strikethrough Text
H̶e̶l̶l̶o̶ W̶o̶r̶l̶d̶
Text with a line through the middle using Unicode combining characters.
Double Underline
H̳e̳l̳l̳o̳ W̳o̳r̳l̳d̳
Copyable text with two Unicode lines beneath each non-space character.
Bold Italic Font
𝑯𝒆𝒍𝒍𝒐 𝑾𝒐𝒓𝒍𝒅
Combined bold and italic math letters — powerful and expressive.
About Bold Underline
Bold underline combines Mathematical Bold characters with the combining underline diacritic (U+0332). Each character is first converted to its bold equivalent, then the underline combining character is applied. The result is bold text with a persistent underline — maximum emphasis for section headers, CTAs, and key terms in long captions.
Frequently Asked Questions
Does bold underline work on Instagram?+
Yes — both bold Unicode characters and combining underline diacritics render correctly in Instagram bios and captions.