Email preflightAyyoub BoufounasGrowth, CRM & automation

UTF-8 email subject encoder

Free. No account.

Text to email header

Encode your email subject with UTF-8 Base64 (B) or Q. Accents, symbols and non-Latin characters are supported.

Before
Café
After
=?UTF-8?B?Q2Fmw6k=?=
What do B and Q mean?

They are the two RFC 2047 email header encodings. B uses Base64; Q represents some bytes with an equals sign and hexadecimal digits. Both carry the same subject text. For example, =?UTF-8?Q?Caf=C3=A9?= also means Café.

Where do I use the result?

Use it in raw email source or a system that explicitly accepts RFC 2047 headers. Most campaign editors expect readable text and handle encoding themselves.

RFC 2047 specification

Ayyoub Boufounas

Growth, CRM & email automation.

Have a role in mind?

Your email studio.

Free account.

Privacy & data