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SHA-256 Hash Generator

Generate cryptographic hashes using SHA-256, SHA-512, Keccak-256 (Ethereum), and more. Hash text or files securely in your browser.

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Algorithm

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Hash Algorithms in Blockchain

The backbone of Bitcoin. Used for mining (proof-of-work), transaction IDs, and Merkle trees. Produces a 256-bit (32-byte) hash.

Ethereum's hash function. Used for addresses, transaction hashes, and smart contract storage. Not the same as SHA-3 despite similar origins.

Extended security with 512-bit output. Used in some wallet derivation paths (BIP-32) and for extra security margins.

Legacy algorithms. Not secure for cryptographic use but still common for checksums and non-security applications like Git commit IDs.