HTTP Basic Auth

Build and decode HTTP Basic Authorization headers.

Build

Username

Password

Base64 token

YWRtaW46czNjcmV0

Authorization header

Authorization: Basic YWRtaW46czNjcmV0

curl command

curl -u 'admin:s3cret' https://example.com/api

URL with embedded credentials

https://admin:s3cret@example.com/api

Decode

Base64 token (or full Authorization header)

User

admin

Pass

s3cret

Basic auth is only safe over HTTPS — credentials are not encrypted, only base64-encoded.