A fixed-length fingerprint of data. The same input always gives the same hash, but you can't reverse a hash back into the input.

Which hash should I use?

SHA-256 is the common choice today. MD5 and SHA-1 are fine for checksums but are no longer considered secure.

Can I hash passwords with this?

Real password storage should use slow algorithms like bcrypt or Argon2 with a salt, not plain SHA or MD5.

Why does one extra space change the whole hash?

Hashes are designed so any tiny change in input produces a completely different output.

No. All hashes are calculated locally in your browser.

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Hash Generator— MD5, SHA-1, SHA-256 and SHA-512 hashes.

Compare with a known hash (optional)

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How to Use the Hash Generator

Type or paste text into the input box. MD5, SHA-1, SHA-256 and SHA-512 hashes update instantly as you type. Copy any hash with one click. To verify a checksum, paste the expected hash into the Compare box and the matching algorithm is highlighted.

Frequently Asked Questions

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How to Use the Hash Generator

Frequently Asked Questions

What is a hash?

Which hash should I use?

Can I hash passwords with this?

Why does one extra space change the whole hash?

Is my text uploaded?

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