Security utility
Basic Auth Header Generator
Create an HTTP Basic Authorization header locally from a username and password.
● This tool runs entirely in your browser. Your input is never uploaded to our servers.
Enter a username and password above, then generate the header. No text input is required.
Output
Your result will appear here…
How to use Basic Auth Header Generator
- Enter a username and password in the fields.
- Select Generate Header to encode the credentials.
- Use HTTPS and avoid exposing the resulting header in logs or URLs.
Example
Input:
Output:
Authorization: Basic dXNlcjpwYXNzd29yZA==
Use cases
- Test Basic Auth requests in local development.
- Inspect the standard header format.
- Create a header for a controlled API test.
About this tool
Create an HTTP Basic Authorization header locally from a username and password. Processing happens locally in your browser, so your input is not sent to a server or included in analytics.
Frequently asked questions
Does Base64 encrypt the password?
No. Base64 is reversible encoding. Basic Auth must be protected by TLS (HTTPS).
Are the credentials sent to this site?
No. Header generation occurs locally in your browser.
Can a username contain a colon?
No. A colon separates the username from the password in the Basic Auth credential format.