Basic Auth Header Generator
Generate an HTTP Authorization: Basic header value.
Input
Tool UI stub: functionality to be filled in.
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About Basic Auth Header Generator
Build an HTTP Basic Authentication header from a username and password by base64-encoding user:pass. Handy for testing APIs with curl, Postman, or fetch.
How to use
- Enter a username and password.
- Copy the generated Authorization: Basic header value.
- Use it in your request headers when testing.
Frequently asked questions
- Is Basic Auth secure?
- Base64 is encoding, not encryption — always send Basic Auth over HTTPS so credentials are not exposed in transit.
- Does encoding happen locally?
- Yes — the header is built in your browser; your credentials are not sent anywhere.