🔏HMAC Signature

HMAC signature of a message, keyed by the secret on the first line

🔐 Encoding & Security · Runs entirely in your browser — nothing is uploaded.

Input

Hash

Result

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🔐 More in Encoding & Security

🔒Base64 EncodeEncode text to Base64, UTF-8 safe 🔓Base64 DecodeDecode Base64 back to readable text 🔗URL EncodePercent-encode text for a query string 🧷URL DecodeTurn percent-encoding back into text 🏷️HTML EscapeMake text safe to drop into HTML 🔓HTML UnescapeTurn entities back into real characters