Hashing and encryption tools
Hashes and checksums for text or files, bcrypt and Argon2 password hashing, HMAC, and AES encryption, computed entirely in your browser.
9 tools
- Hash generator
SHA-2, SHA-3, Keccak, BLAKE and legacy checksums, for text or files.
- Password strength
Score a password with zxcvbn, the guessing model, with matched patterns shown.
- HMAC
Keyed MACs over text: SHA-1/256/384/512 through WebCrypto, keys as text/hex/base64.
- bcrypt
Hash with bcryptjs at cost 4 to 15 in a disposable worker; verify against a pasted hash.
- Argon2id hasher
Password hashing with presets, bounded custom parameters, PHC output, and verify.
- AES-GCM encrypt
Authenticated encryption with raw keys or PBKDF2 passphrases and a versioned envelope.
- Key generator
RSA, ECDSA, ECDH, and Ed25519 key pairs exported as JWK and PEM.
- HKDF deriver
RFC 5869 extract-then-expand key derivation with explicit salt and info.
- Checksum manifest
sha256sum-style multi-file verification with missing, extra, and per-line errors.
Your files are processed on your device. The few tools that talk to the internet say so before they do.