Enter a username and password and the tool joins them with a colon, Base64-encodes the pair, and outputs the full Authorization: Basic header value to copy.
The username and password are joined as user:pass, Base64-encoded, and prefixed with 'Basic ' to form the Authorization header value.
Base64 is encoding, not encryption — anyone can decode it. Always send Basic Auth over HTTPS so the credentials are protected in transit.
Yes — Base64-decode the part after 'Basic ' to recover the original user:password string for debugging.