What Are Bold Unicode Letters?
Bold Unicode letters (𝐀–𝐙, 𝐚–𝐳) come from the Mathematical Alphanumeric Symbols block (U+1D400–U+1D7FF). Unlike HTML bold tags, these are actual Unicode characters that display bold everywhere — in social media bios, chat messages, and plain text fields.
Where to Use Bold Letters
- Instagram bios — highlight your name or tagline
- Facebook posts — make key words stand out
- LinkedIn — bold headings in your summary
- Discord & Twitter/X — stylized usernames and messages
How to Copy
Click any letter above to open its detail page, then press Copy. Works on all devices and platforms.