Bold Text Generator
Most chat boxes have no bold button. Unicode does: these letters are bold by definition, so they survive a copy and paste.
Three kinds of bold
Unicode encodes bold letters in more than one family, and they are not interchangeable:
| Style | Hello 123 | Shape |
|---|---|---|
| Bold | 𝐇𝐞𝐥𝐥𝐨 𝟏𝟐𝟑 | Serif, upright — matches Times-style body text |
| Bold italic | 𝑯𝒆𝒍𝒍𝒐 𝟏𝟐𝟑 | Serif with a slant |
| Bold sans | 𝗛𝗲𝗹𝗹𝗼 𝟭𝟮𝟯 | Sans-serif, upright — the "headline" look |
All three include digits. That matters more than it sounds: in most other fancy alphabets (script, fraktur lower-case sets, small caps) numbers fall back to normal, which makes a phone number or a score look broken.
Why this works in chats that have no bold button
Where you have a formatting toolbar — a word processor, an email composer, a Markdown editor — you should use the real thing. Real bold is a property of the document: it stays bold when the reader's font changes, it can be turned off by the reader, and screen readers ignore it.
What those tools cannot do is cross into a plain-text field: an Instagram bio, a TikTok caption, a Discord nickname, a game chat box. Those fields have no formatting layer at all. The only way to get bold there is to send characters that are already bold, which is what this page produces.
The alphabet
| Style | Capital | Lowercase | Digits |
|---|---|---|---|
| Bold | 𝐀𝐁𝐂𝐃𝐄𝐅𝐆𝐇𝐈𝐉𝐊𝐋𝐌𝐍𝐎𝐏𝐐𝐑𝐒𝐓𝐔𝐕𝐖𝐗𝐘𝐙 | 𝐚𝐛𝐜𝐝𝐞𝐟𝐠𝐡𝐢𝐣𝐤𝐥𝐦𝐧𝐨𝐩𝐪𝐫𝐬𝐭𝐮𝐯𝐰𝐱𝐲𝐳 | 𝟎𝟏𝟐𝟑𝟒𝟓𝟔𝟕𝟖𝟗 |
| Bold italic | 𝑨𝑩𝑪𝑫𝑬𝑭𝑮𝑯𝑰𝑱𝑲𝑳𝑴𝑵𝑶𝑷𝑸𝑹𝑺𝑻𝑼𝑽𝑾𝑿𝒀𝒁 | 𝒂𝒃𝒄𝒅𝒆𝒇𝒈𝒉𝒊𝒋𝒌𝒍𝒎𝒏𝒐𝒑𝒒𝒓𝒔𝒕𝒖𝒗𝒘𝒙𝒚𝒛 | 𝟎𝟏𝟐𝟑𝟒𝟓𝟔𝟕𝟖𝟗 |
| Bold sans | 𝗔𝗕𝗖𝗗𝗘𝗙𝗚𝗛𝗜𝗝𝗞𝗟𝗠𝗡𝗢𝗣𝗤𝗥𝗦𝗧𝗨𝗩𝗪𝗫𝗬𝗭 | 𝗮𝗯𝗰𝗱𝗲𝗳𝗴𝗵𝗶𝗷𝗸𝗹𝗺𝗻𝗼𝗽𝗾𝗿𝘀𝘁𝘂𝘃𝘄𝘅𝘆𝘇 | 𝟬𝟭𝟮𝟯𝟰𝟱𝟲𝟳𝟴𝟵 |
What to watch out for
- Search and matching break. A profile name in bold letters is a different string from the plain name. People searching for you by typing normal letters will not find it through exact match.
- Usernames and tags. Those fields reject non-ASCII letters, so keep them plain. Bold works in display names and message bodies.
- Accessibility. Assistive technology may read bold characters one by one or announce their code point names. Never use this for instructions, prices, dates or anything that must be understood reliably.
- Some fonts draw it thin. Mathematical bold is bold by encoding, but a fallback font is allowed to draw it at a lighter weight. On most phones it looks bold; on a few it looks like slightly wide normal text.
- Bold is not emphasis in every context. Screen readers and search engines do not treat it as "important" the way real markup does.
Bold in the middle of a sentence
Mixing looks deliberate when it is one or two words: 𝐒𝐨𝐥𝐝 𝐨𝐮𝐭 at the start of a caption, a 𝐅𝐑𝐄𝐄 tag on a photo, a name in a group chat. Bold the whole paragraph and the effect disappears — everything is emphasised, so nothing is.
Keep the plain version nearby when the message matters. If a reader copies the bold text into a form, an address book or a spreadsheet, the plain one is what they will need.
Questions
Can I turn bold text back into normal letters?
Not with a button on most sites. The characters are distinct, so you have to retype the text or run it through a converter that maps them back. This page only goes one way.
Why do the bold digits look different from the bold letters?
They come from a separate part of the same Unicode block. Bold digits are drawn in a slightly different style by some fonts, so a number next to a word can look a little off.
Is bold text allowed in Instagram and TikTok bios?
As ordinary characters, yes — the apps do not classify them as formatting. Individual fields may still filter unusual characters when saving, so test with one word before pasting a long paragraph.