What is dXNlcm5hbWU6cGFzc3dvcmQ=?

"username:password"

dXNlcm5hbWU6cGFzc3dvcmQ=
Decoded typePlain text (text/plain)
Decoded size17 B
Base64 length24 characters
username:password
75 73 65 72 6E 61 6D 65 3A 70 61 73 73 77 6F 72
64

Explanation

Decoded, this is username:password. It is the canonical example of an HTTP Basic authentication header: Authorization: Basic dXNlcm5hbWU6cGFzc3dvcmQ=.

It shows why Basic auth must only be used over HTTPS: the credentials are merely encoded, not encrypted. Decode real headers with the Basic Auth decoder.

You can decode any similar value yourself with the Base64 decoder, or identify a file from its first characters with the Base64 to File converter.

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