Basic Auth Generator

Authorization Header

How to use this Basic Auth generator

  1. Type a username and password.
  2. The ready-to-use Authorization header appears instantly.
  3. Paste it into Postman, curl, or your API client's headers.

How does HTTP Basic Auth work?

Basic Auth combines a username and password as "username:password", then Base64-encodes the result and sends it in the Authorization header. It's simple but not encrypted, so it should only be used over HTTPS.

Is Basic Auth secure?

Base64 is encoding, not encryption — anyone who intercepts the header can decode it instantly. Basic Auth is only safe when used over HTTPS, which encrypts the entire connection.

What's a common use case for this?

Testing internal APIs, staging servers protected with simple auth, or legacy systems that don't support OAuth or API keys.