Text to Bold Unicode

Conversion

Convert text to Unicode bold characters.

Formula

Unicode Mathematical Bold block: A→𝐀 (U+1D400), a→𝐚 (U+1D41A), 0→𝟎 (U+1D7CE)
  • Unicode Mathematical Bold characters render as bold in many apps. Non-letter/digit characters are passed through unchanged.

Text to Bold Unicode Example

Inputs
  • Text: Hello

Hello → 𝐇𝐞𝐥𝐥𝐨

Frequently asked questions

How do I make text bold with this tool?
Type or paste your text and it is instantly converted to Unicode Mathematical Bold characters you can copy and paste.
Where can I use bold Unicode text?
It works in places that do not support normal formatting, like social media bios, usernames, and chat messages.
Why do some characters stay normal?
Only letters and digits have bold Unicode equivalents. Spaces, punctuation, and symbols pass through unchanged.
Is this real bold or a special font?
These are distinct Unicode characters that look bold, not a font setting, so they keep their look wherever Unicode is supported.