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Generate SHA-2 hash values (SHA-224, SHA-256, SHA-384, SHA-512) from text input with multiple variants.
Generate SHA-224, SHA-256, SHA-384, and SHA-512 digests entirely in your browser.
SHA-2 is a family of cryptographic hash functions (SHA-224, SHA-256, SHA-384, SHA-512) designed by the NSA and published by NIST. They are widely used for data integrity, digital signatures, and certificate fingerprints. SHA-256 and SHA-512 remain solid defaults for new applications. All hashing happens locally in your browser; the text you enter never leaves your device.
SHA-2 is the family of secure hash algorithms published by NIST and used across modern security systems, from TLS certificates to blockchain and software signing. This tool computes every common variant — SHA-224, SHA-256, SHA-384, and SHA-512 — from any text you enter. Each variant produces a fixed-length hexadecimal digest: SHA-256 is 64 characters, SHA-512 is 128, and the numbers refer to the output size in bits.
Like all cryptographic hashes, SHA-2 is deterministic and one-way. The same input always yields the same digest, a tiny change to the input scrambles the entire output, and there is no practical way to reverse a digest back into the original text. Unlike MD5 and SHA-1, SHA-2 has no known practical collision attacks, which is why it is the default choice when integrity actually matters.
Everything is calculated locally in your browser, so the values you hash never leave your device. Use SHA-256 for general-purpose integrity checks and checksums; choose SHA-384 or SHA-512 when you want a larger security margin or are matching a system that expects those sizes. Note that a bare SHA-2 hash is still not a substitute for a salted password hash — for storing passwords, use bcrypt, scrypt, or Argon2.
They belong to the same SHA-2 family but produce different output sizes — 256 bits versus 512 bits — and use different internal word sizes. SHA-512 offers a larger security margin and can be faster on 64-bit hardware, while SHA-256 produces shorter, more common digests.
Yes. SHA-2 has no known practical collision or preimage attacks and is trusted for TLS, code signing, and integrity verification. It is a solid choice wherever a modern cryptographic hash is required.
Not on its own. Plain SHA-256 is too fast, which helps attackers guess passwords quickly. Use a slow, salted password hash such as bcrypt, scrypt, or Argon2 for credential storage.
No. All hashing happens in your browser with JavaScript, so your text is never transmitted or stored on a server.