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HTTP Basic Auth Builder

Build Authorization: Basic headers from a username and password, or decode an existing one.

Encode credentials

Username

Password

Base64-encoded credentials

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Full Authorization header

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Decode existing header

Authorization header or base64 credentials

Username

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Password

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Code snippets

curl

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⚠ Security notice

HTTP Basic Auth encodes credentials with Base64, not encryption. They are trivially decoded by anyone who can read the request. Always send over HTTPS, never over plain HTTP. For public APIs prefer bearer tokens, OAuth, or signed requests.

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