Double-Struck Text Generator
Convert text to double-struck (blackboard bold) Unicode you can paste into Instagram, Twitter, and Discord. Free, instant, and works in your browser.
Calculator by Toolsloft ↗Turn ordinary text into double-struck (blackboard bold) Unicode you can paste anywhere, including apps that give you no font choice such as Instagram bios, Twitter or X posts, and Discord names. Type once and copy the outlined version out. The result is real Unicode, not an image, so it keeps working wherever you paste it.
How this is calculated
Each letter and digit is swapped for its match in the Unicode Mathematical Double-Struck block: lowercase runs from U+1D552, digits 0 to 9 from U+1D7D8, and capitals from U+1D538 with seven exceptions. The capitals C, H, N, P, Q, R, and Z are pulled from the Letterlike Symbols block (U+2102, U+210D, U+2115, U+2119, U+211A, U+211D, U+2124) because their double-struck positions are reserved. Spaces, punctuation, and any character without a double-struck form are left unchanged.
How to use
- Type or paste your text into the input box.
- The double-struck version appears instantly in the output box.
- Copy it and paste it into your bio, post, or username.
Examples
- Word:
Double → 𝔻𝕠𝕦𝕓𝕝𝕖 - Letterlike capitals:
Cash → ℂ𝕒𝕤𝕙
FAQ
- Is this real double-struck text or an image?
- It is real Unicode text, not an image. You can copy and paste it into most apps and websites, and it stays selectable and searchable. It is not a downloadable font, so nothing needs to be installed by you or the reader.
- What is the difference between double-struck and blackboard bold?
- They are two names for the same style. Mathematicians write it on a chalkboard to stand in for bold, which is where "blackboard bold" comes from. Unicode calls the block Double-Struck, so you may see the tool listed under either name.
- Why do C, H, N, P, Q, R, and Z look slightly different?
- Unicode leaves the double-struck positions for those seven capitals empty because the same glyphs already exist in the Letterlike Symbols block, so the generator uses those instead. They are still the correct double-struck capitals and may just render a touch differently from the rest depending on the font.