How to Use Basic Auth Header Generator
Turn a username and password into a Base64-encoded HTTP Basic Authorization header, the encoded token, and a ready cURL command. UTF-8 safe and encoded locally — credentials are never sent anywhere.
Open the Basic Auth Header Generator tool →What is Basic Auth Header Generator?
Build an HTTP Basic Authorization header from a username and password. It's completely free, needs no sign-up, and runs entirely in your browser — so it's fast and private.
How to use Basic Auth Header Generator
- Open the Basic Auth Header Generator tool.
- Paste or type your input.
- Set any options provided.
- Copy the result. Everything runs in your browser — nothing is uploaded.
Frequently asked questions
How is the header built?
It Base64-encodes username:password and prefixes it with 'Basic ', producing the standard HTTP Authorization header.
Is Basic Auth secure?
The credentials are only encoded, not encrypted — anyone who intercepts them can decode them. Always use Basic Auth over HTTPS.
Does it handle non-ASCII characters?
Yes — the value is UTF-8 encoded before Base64, so accented characters and symbols work correctly.
Ready to try it?
Open Basic Auth Header Generator →