Basic Auth Generator

HTTP Basic Authentication is a simple authentication scheme built into the HTTP protocol. The Basic Auth Generator takes a username and password, encodes them in the standard Base64 format, and produces the complete Authorization header value ready to use in API requests, curl commands, or configuration files.

Basic Auth works by combining the username and password with a colon separator (username:password), then encoding the result as Base64. The final header takes the form "Authorization: Basic dXNlcm5hbWU6cGFzc3dvcmQ=". While Basic Auth is straightforward, it only provides encoding and not encryption - the credentials can be easily decoded from the Base64 string. Always use Basic Auth exclusively over HTTPS connections to protect credentials in transit.

The tool generates the header in multiple formats including the raw header value, a curl command flag, and a fetch API example. Everything runs in your browser - your credentials are never sent to any server. This is especially useful for developers working with REST APIs, configuring CI/CD pipelines, setting up reverse proxies, or testing authenticated endpoints during development.