Generate HTTP Basic Authentication headers instantly. Enter a username and password to produce the Base64-encoded Authorization header required for API testing, curl commands, and HTTP clients.
HTTP Basic Auth sends credentials as Base64-encoded username:password in an Authorization header with every request.
Basic Auth alone is NOT secure because credentials are only Base64-encoded. Always use it over HTTPS.
Basic Auth sends username:password as Base64 in every request — requires HTTPS, simple but exposes credentials. Bearer Token sends a short-lived JWT or opaque token — does not expose passwords, supports expiration and scopes, better suited for modern API design and single sign-on scenarios.
Basic Auth encodes credentials in Base64 and sends them in the request header — it provides no encryption on its own. It must be combined with HTTPS to be reasonably secure. It is suitable for internal APIs, development environments, or low-security scenarios. For production user-facing services, prefer OAuth2, JWT, or API keys.