Yaykyi Tools

HTTP Basic Auth Generator Online

Generate HTTP Basic Authentication headers instantly. Encode username and password credentials to Base64 for use in API requests.

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What is HTTP Basic Auth Generator Online?

HTTP Basic Authentication sends credentials as a Base64-encoded string in the Authorization header: `Authorization: Basic dXNlcjpwYXNz`. While Base64 is not encryption (use HTTPS!), this format is required by many APIs, dashboards, and proxy servers. This tool generates the correctly formatted header value instantly.

How to Use HTTP Basic Auth Generator Online

  1. Enter your username and password.
  2. Copy the generated Authorization header value.
  3. Paste it into your HTTP client, curl command, or API tool.

Example

Authorization header value

Input

user:password

Output

Basic dXNlcjpwYXNzd29yZA==

Frequently Asked Questions

Is Basic Auth secure?

Only when used over HTTPS. Without TLS, the Base64 encoding offers zero protection as it is trivially reversible.

Can I decode a Basic Auth header?

Yes. Base64 decode the part after "Basic " and you will see "username:password". This is why HTTPS is critical.

See Also

Base64 StringURL EncoderHMAC Generator