Basic Auth Decoder

Decode HTTP Basic Authorization header to extract username and password from Base64. Useful for debugging and API testing

Authorization Header
Paste header like: Basic dXNlcjpwYXNz
Decoded Result
Decode HTTP Basic Authorization header to extract username and password from Base64. Useful for debugging and API testing
Username
Aladdin
Password
open sesame

What It Does

Decode HTTP Basic Authorization header to extract username and password from Base64. Useful for debugging and API testing.

Accepted Input

Paste header like: Basic dXNlcjpwYXNz This tool also accepts a full Authorization: Basic ... line.

Notes

  • Base64 only encodes credentials; it does not protect them.
  • The decoder splits on the first : and keeps the rest in the password.
  • Everything runs locally in your browser.