Bold, italic and small-caps Unicode text with โค โ โฐ ๐ [tags] for email subject lines and preview text โ the only way to format a subject, with notes on what inboxes and spam filters do with it.
Bold subject
Bold subject: Your order has shipped
Italic subject
Italic subject: Your order has shipped
Small caps subject
Small caps subject: Your order has shipped
Arrow lead โค
Arrow lead โค: Your order has shipped
Checkmark โ
Checkmark โ: Your order has shipped
Reminder โฐ
Reminder โฐ: Your order has shipped
Gift ๐
Gift ๐: Your order has shipped
Bracket tag
Bracket tag: Your order has shipped
Bold first word
Bold first word: Your order has shipped
Star โ
Star โ : Your order has shipped
Announce ๐ฃ
Announce ๐ฃ: Your order has shipped
Invoice ๐งพ
Invoice ๐งพ: Your order has shipped
Preview divider
Preview divider: Your order has shipped
Question mark
Question mark: Your order has shipped
Numbered
Numbered: Your order has shipped
Underlined
Underlined: Your order has shipped
Styled letters are Unicode characters, not fonts โ screen readers may read them letter by letter and search engines don't match them to plain words, so keep essential details in plain text. Unicode accessibility guide
Email subjects are plain text โ no bold, no colour โ which is exactly why a subject in ๐ฏ๐ผ๐น๐ฑ sans or with a single โค โ โฐ symbol stands out in a crowded inbox. Unicode styled letters and symbols are legal in subject lines and display in Gmail, Outlook, Apple Mail, Yahoo and most clients. This page produces the formats that newsletter senders and support teams use: a bold first word, a [Bracket tag], an arrow lead, a checkmark for confirmations, a clock for reminders, a gift for offers, a receipt for invoices, a preview-text divider.
The rows are deliberately restrained. Subject lines full of symbols or entirely in styled letters are a known spam signal, and some corporate filters score them down; one styled word or one symbol is the safe pattern. The plain words remain searchable in the recipientโs mailbox only if they are plain, so style the least important word, not the keyword.
Type the subject line.
Choose a bold first word, a symbol lead or a bracket tag.
Copy and paste into the subject field of your email client or ESP.
Rendering is broad; behaviour differs in small ways:
Symbols are not a spam trigger by themselves โ transactional emails have used โ and ๐ฃ for years โ but density is. Filters and reputation systems flag subjects that are mostly symbols, use many emoji, or restyle every letter. Keep to one styled element, avoid ALL CAPS in styled form, never combine styled letters with urgency words in the same subject (โ๐จ๐ฅ๐๐๐ก๐ง!!!โ), and test a small send first. For B2B audiences, the Bracket tag and Bold first word rows are the least risky.
The Preview divider row appends a โ bar and an invisible braille blank so the inbox preview shows a clean break after your subject. Screen-reader users hear styled letters spelled out or described as โmathematical boldโ, which makes a fully styled subject hard to understand; that is another reason to style one word at most and keep the essential information plain. Symbols like โ are announced by name (โcheck markโ), which is acceptable.
Yes โ subjects are UTF-8 text; styled letters and symbols are valid and display in major clients.
One bold word or one symbol is fine; subjects that are mostly symbols or fully restyled score worse. Test first.
Yes โ paste into the subject field. Gmail displays it and keeps it through replies.
A โ bar plus an invisible character so the inbox preview text starts cleanly after the subject.
Yes.
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