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Basic Auth Header
BASIC AUTH · DEV TOOLS
Encode user:password into an Authorization: Basic <base64> header with a copy-ready header and curl snippet; cross-linked with the HTTP Headers tool.
Credentials
Username
Password
Authorization header
curl snippet
Credentials are encoded locally and never uploaded; Basic Auth transmits base64 in cleartext — use HTTPS only.
This tool runs entirely in your browser — input never leaves your device. Press Ctrl K to switch tools anytime.