Your files stay on your device

Argon2id Password Hasher

Password hashing with presets, bounded custom parameters, PHC output, and verify.
HashVerifyClearPasswordNoneHexText

Associated data (the RFC 9106 ad input) is not supported: the hash-wasm WASM build exposes no associated-data parameter, and the page never hand-rolls Argon2.
GenerateHexTextSalt bytes

8-64 bytes; 16 is the norm.
Show one random hex saltOWASP minimal (19 MiB, t=2, p=1)OWASP normal (46 MiB, t=1, p=1)t=1, p=4 (2 MiB)Custom

m=19456 KiB (19 MiB), t=2, p=1: the first OWASP configuration.
Memory (KiB)IterationsParallelismOutput bytes

The PHC string ($argon2id$v=19$m=…,t=…,p=…$salt$hash) appears here: algorithm, parameters, salt, and digest in one interoperable format.
Nothing in yet

Paste, drop, or type to begin. Everything stays on this device.

Next door in Crypto

- bcrypt (/crypto/bcrypt)
- Password strength (/crypto/password-strength)
All crypto tools (/crypto)

Canonical HTML: https://nutter.tools/crypto/argon2
Markdown version: https://nutter.tools/crypto/argon2/index.md
Plain-text version: https://nutter.tools/crypto/argon2/index.txt
Agent index: https://nutter.tools/llms.txt