Bold Text Generator

Social media posts, bios and usernames are plain text, so there is no way to switch on bold. Unicode, though, has bold versions of every letter and digit as separate characters, made for mathematics. The generator swaps each of your letters for its bold twin, so the result is still plain text, but plain text that looks bold.

The bold styles come first, and larger. Every other style is underneath if you want to compare.

A good use: bold the first few words of a long caption, so people scrolling past see the point. A poor use: a whole caption in bold, which is slower to read and invisible to some screen readers.

Nothing on this page changes a font. Each style swaps your letters for different characters that happen to look like styled letters: 𝐁 is “mathematical bold capital B”, a separate character from B, made so that equations can tell different kinds of variable apart. That is why the text keeps its style when you paste it somewhere that has no formatting, such as a social media bio.

It also has real costs, and it is fairer to say so:

• Screen readers may not read it. Some skip the characters altogether, and others announce each one, such as “mathematical bold capital B”, so a short phrase becomes a long string of symbol names. Upside-down and enclosed letters are often read as nonsense.
• Search may not find it. A search for “sale” will not always match 𝐬𝐚𝐥𝐞, so styled names and keywords can be harder to find on the platforms that use them.
• Some devices show boxes. Older phones and some fonts lack these characters and show an empty box or a question mark instead.

So use it for decoration, not information: a word or two of emphasis, a name, a heading in a bio. Never style a whole post, a link, a price, a date or anything a reader must understand. Where real formatting is available, such as in a document, an email or a web page, use the bold and italic buttons instead. They look the same and work for everyone.