Developer Tools
Generate an HTTP Basic Authorization header from username and password input.
Use this Basic Auth Header Generator to create a ready-to-copy Authorization header for HTTP Basic authentication. It is useful for API testing, manual requests, debugging, and documentation when you need the exact Basic header value generated from username and password.
Use this Basic Auth Header Generator to create a ready-to-copy Authorization header for HTTP Basic authentication. It is useful for API testing, manual requests, debugging, and documentation when you need the exact Basic header value generated from username and password.
Use basic auth header generator when you need a fast browser-based result without extra setup. It works well for quick checks, one-off tasks, and routine formatting or calculation work.
Read step-by-step usage guidance, best practices, and common mistakes.
See common questions and answers about input, output, and tool usage.
Review practical input and output examples before running the tool.
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Input
admin secret123
Output
Authorization: Basic YWRtaW46c2VjcmV0MTIz
Combines username and password as username:password and encodes the result.
Input
user@example.com P@ssw0rd!
Output
Authorization: Basic dXNlckBleGFtcGxlLmNvbTpQQHNzdzByZCE=
Useful for copying directly into HTTP request headers.
Fix: Put the username on the first line and the password on the second line.
Fix: Basic Auth uses Base64 encoding, not encryption.
Fix: Use this only for systems that explicitly require HTTP Basic authentication.
It produces an Authorization header in the form Authorization: Basic <base64>.
Put the username on the first line and the password on the second line.
No. It is Base64 encoding, so HTTPS still matters.
Yes. The output is ready to copy as an Authorization header.
This tool builds the exact username:password format and returns the ready Authorization header, while Base64 Encoder works on general text.