What this tool does
Generate a Basic Authorization header from your username and password, including Unicode characters. The username:password value is encoded as UTF-8 Base64. This encoding is reversible and does not protect your credentials; use HTTPS when sending the header.
- Shows both Base64 Credentials and the full Authorization Header.
- Your username and password are not saved in your browser, included in the page URL, or sent to a server.
- Clicking "Clear" will remove the username, password, and all derivatives.
How to use it
- Enter Username and Password.
- Click Generate Basic Auth.
- Check Base64 Credentials or full Header.
- Click "Clear" after copying the results.
Common uses
- Prepare Basic Authorization Header for local API testing.
- Validate UTF-8 Base64 results for multilingual usernames.
- Learn the actual string format for Basic Auth.
Privacy and security
The username and password are only used for UTF-8 Base64 encoding within the current page and will not be saved or sent; Basic Auth must work with HTTPS.
Basic Auth Generator Features
Generate Basic Authorization Header securely in UTF-8, with the caveat that Base64 is not encryption. Review the result, then copy it for use.
FAQ
Is Basic Auth encryption?
No. Base64 can easily restore usernames and passwords, and must rely on HTTPS for transmission.
Does it support Chinese username or password?
Support. The tool uses UTF-8 bytes first and then Base64 encodes them.
Will the credentials be saved or uploaded?
No. Your credentials are not saved, and the tool does not send network requests.
Why should I empty it after use?
Credentials and derived headers are sensitive information, and clearing them can reduce the time they remain on the current page.