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Generate SHA-1, SHA-256, and SHA-512 hashes from any text.
Hash will appear here...
Hash will appear here...
Hash will appear here...
Type or paste the text you want to hash into the input field.
Click Generate Hashes to compute SHA-1, SHA-256, and SHA-512 hashes simultaneously.
Click the Copy button next to any hash to copy it to your clipboard.
A hash function turns any input into a fixed-length string of characters called a digest. The same input always produces the same digest, but you cannot reverse the digest back into the original input. Hashes are used for checksums, data integrity checks, and storing fingerprints of content. This generator produces SHA-1, SHA-256, and SHA-512 hashes from any text you enter.
Type or paste your text and the hashes update instantly. Because the calculation runs in your browser using the Web Crypto API, your input never leaves your device.
Hashes verify that a file or message has not changed: compute the hash before and after transfer, and if they match, the data is intact. They also create a fingerprint of content for deduplication and caching. In security, hashes underpin digital signatures and password storage, though passwords should use a slow, salted algorithm rather than a plain SHA hash.
SHA-256 is the sensible default for integrity and fingerprinting today. SHA-512 produces a longer digest and can be faster on 64-bit systems. SHA-1 is still common in older systems and for non-security checksums, but it is considered broken for security purposes because collisions can be produced, so avoid it for anything that must resist tampering.
Encryption is reversible with a key, but hashing is one-way by design, so you cannot recover the original text from a digest. That is why hashes are used for verification rather than for storing data you need to read back. If you need to protect data and retrieve it later, you want encryption, not hashing.
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