Basic Auth Generator

HTTP Basic Authentication sends a username and password in the Authorization header as Base64("username:password"). That's encoding, not encryption, so Basic Auth only makes sense on top of HTTPS.

How to use it

• Generate: enter a username and password and the tool builds the username:password string, Base64-encodes it, and produces a ready Authorization: Basic ... header.
• Decode: paste an existing Basic Auth header to decode it back into a username and password.
• Copy the finished header straight into curl, Postman, or a server config.

Common uses

• Building a header for manually testing an API with curl or Postman without running client code.
• Setting up basic authentication on nginx/Apache or in a reverse-proxy config.
• Decoding a header from logs or captured traffic while debugging an authentication issue.

Things to keep in mind

Base64 is not encryption — anyone intercepting the header instantly recovers the username and password in plain text.

Basic Auth is only safe over HTTPS — without TLS, credentials travel essentially in the clear.