Compute SHA-1, SHA-256, SHA-384, and SHA-512 digests of any text instantly, using your browser's native WebCrypto engine.
SHA-256 is the modern default. SHA-1 is legacy and broken for security purposes; the SHA-2 family (256/384/512) remains widely trusted.
Yes — the digests are produced by your browser's WebCrypto engine. The input never touches a server.
No. Cryptographic hashes are one-way; identical inputs always produce identical digests, but digests cannot be converted back to the input.