Basic Auth Header

Turn a username and password into a Base64 HTTP Basic Authorization header value.

Username

Password

Authorization header

Authorization: Basic YWxhZGRpbjpvcGVuIHNlc2FtZQ==

Base64 token

YWxhZGRpbjpvcGVuIHNlc2FtZQ==

The credentials are Base64-encoded (UTF-8), not encrypted — Basic Auth is only safe over HTTPS. Encoding happens locally; nothing is sent anywhere.