Hash Generator

MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes and HMACs of text or files, worked out in your browser

Text

Hashed as UTF-8, exactly as typed, line breaks and spaces too

HMAC key (optional)

With a key, the hashes are HMACsCheck a hash (optional)

Hexadecimal or Base64, the hash it matches is marked

Hashes

MD5 and SHA-1 are broken for security, use them only for checksums

MD5

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SHA-1

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SHA-256

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SHA-384

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SHA-512

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How to generate a hash

Type your text, or switch to File and drop a file.
See its MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes at once.
Add a key to get HMACs instead, and pick hexadecimal or Base64.
To verify a download, paste its published checksum: the hash it matches is marked.

Questions

How do I check a file's checksum?

Drop the file, then paste the checksum from the download page in the check field: if it matches one of the hashes, the file is exactly the one published.

Which hash should I use?

SHA-256 for most uses. MD5 and SHA-1 are broken for security; use them only for checksums where an older system asks for them.

What is an HMAC?

A hash made with a secret key, so only someone with the key can make or check it; APIs use it to sign their requests.

Is my file or text uploaded?

No, the hashes are worked out by your browser, so it's safe for private files and keys.