Security
Generate SHA-1, SHA-256, SHA-384, and SHA-512 hashes online.
100% client-side · Data never leaves your device · Free forever
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Compute SHA-1/256/384/512 digests of UTF-8 text entirely in the browser. Useful for checksums, content addressing demos, and comparing file fingerprints when you paste content.
SHA-1 is legacy and collision-prone for security contexts. Prefer SHA-256 or SHA-512 for new systems.
SHA-1, SHA-256, SHA-384, and SHA-512 via the Web Crypto API. MD5 is omitted because browsers do not expose it in SubtleCrypto and it is cryptographically broken.
No. Hashes are one-way fingerprints. You cannot decrypt a hash to recover the original text.
For password storage use a slow KDF (bcrypt, scrypt, Argon2) with salt—not a single fast SHA-256 of the raw password.