HTTP Basic auth decoder

Decode an HTTP Basic Authorization header to recover the username and password. Useful for debugging and API testing.

Authorization header

Paste a Basic scheme value or a complete Authorization header line.

Decoded result

Review the username and password extracted from the Base64 credential payload.

Username

Aladdin

Password

••••••••

What it does

Decode an HTTP Basic Authorization header to extract its username and password from Base64. This is useful for debugging and API testing.

Accepted input

Paste a value such as Basic dXNlcjpwYXNz. A complete Authorization: Basic ... header line is also accepted.

Notes

  • Base64 only encodes credentials; it does not protect them.
  • The decoder splits on the first colon and keeps the rest in the password.
  • Decoded control characters, malformed Base64, and headers containing line breaks are rejected.

How to use

Paste a Basic scheme value or full Authorization header. Valid input is decoded automatically; reveal the password when needed, copy either credential from its field, or restore the example from the input card.