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Generate MD5, SHA-1, SHA-256 and SHA-512 hashes in your browser via Web Crypto, with optional HMAC signing. Nothing is sent anywhere.
MD5 is implemented in JavaScript; SHA and HMAC use the browser's Web Crypto API. All hashing happens locally — your input never leaves this page.
Get the digest of what we use in production — password hashing, checksums, and HMAC pitfalls to avoid.
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