Email Text Generator

The two copy buttons, and which one email needs

Most "bold text generators" hand you Unicode characters — 𝐥𝐞𝐭𝐭𝐞𝐫𝐬 𝐥𝐢𝐤𝐞 𝐭𝐡𝐞𝐬𝐞 — and tell you to paste them into your email. We'll be honest with you: that is the wrong tool for an email body. Email supports real formatting, and real formatting is what the Copy as Rich Text button above gives you. It puts genuine HTML bold on your clipboard, so when you paste into Gmail, Outlook, Apple Mail, Word or Google Docs, the bold renders in the recipient's own font and behaves like bold they applied themselves.

Why Unicode bold breaks in Outlook

Unicode "bold" isn't bold text — it's a different set of characters. When you bold the letter A this way, it becomes 𝐀 (U+1D400, Mathematical Bold Capital A), a separate character from the Mathematical Alphanumeric Symbols block, the way é is a separate character from e. Two things then go wrong in email:

1. Font fallback. Outlook's default body fonts — Calibri, and Aptos in current builds — contain no glyphs for these characters. Windows substitutes whichever installed font does have them, usually Cambria Math or Segoe UI Symbol. Your "bolded" words render in a different typeface, at a different weight and apparent size, sitting inside otherwise-normal text. That is the "broken formatting" people see.
2. Outgoing encoding. Classic Outlook can pick a non-Unicode encoding when sending, which replaces extended characters with question marks. Microsoft documents this as a known issue in builds through 2603, with a fix in the March 2026 updates — but you can't ask every recipient to update or change their encoding settings.

There are quieter costs too: Outlook's search won't find a Unicode-bolded word (the stored characters aren't the letters being searched for), the spell checker underlines every styled word, and screen readers announce them character by character. We wrote up the full diagnosis in Why bold text breaks in Outlook. The rich-text copy button avoids all of it, because what lands in the email is ordinary HTML bold.

Where Unicode bold is genuinely useful in email

Unicode styling is a workaround for places that forbid formatting — and email has exactly two of them:

• Subject lines. No email client lets you format a subject line, so a 𝐛𝐨𝐥𝐝𝐞𝐝 𝐰𝐨𝐫𝐝 is the only way to stand out in a crowded inbox. Use it on one or two words at most — a fully styled subject line is a known spam-filter signal, and on recipients' devices without the right fonts it can render as boxes.
• Plain-text contexts. Some ticketing systems, newsletters and signature fields accept only plain text. If emphasis matters there, Unicode characters survive where HTML is stripped.

Let AI find what deserves emphasis

The hard part of formatting an email isn't applying bold — it's deciding what deserves it. Format with AI reads your draft and bolds the things a skimming recipient must not miss: deadlines, amounts, names, and the action you're asking for. Combine it with Clean up to strip paste artifacts from a draft, or Humanize if the draft started life in ChatGPT and reads like it. Then copy as rich text and paste into your email client.

Related reading

• Why bold text breaks in Outlook (and what to do) — the full diagnosis of the font-fallback and encoding problems
• Unicode bold vs real bold: which to use where — the difference explained once, properly
• Upwork Proposal Generator — if the email you're writing is actually a client pitch