Argon2 Password Hasher — Free Online Tool
Generate secure Argon2 password hashes with configurable time, memory, and parallelism parameters. Uses a WASM port of the reference Argon2 implementation — no server required.
100% client-side. No uploads. Your data never leaves your browser.
How to use Argon2 Password Hasher
- Enter your password
- Generate or enter a salt
- Adjust parameters if needed
- Click Hash Password
Frequently Asked Questions
Which variant should I use?
Argon2id is recommended for most cases — it combines resistance to side-channel attacks (Argon2i) and GPU attacks (Argon2d).
What are good parameter values?
OWASP recommends: Argon2id with 1 iteration, 64 MB memory, 1 parallelism as a minimum. Increase memory cost as your server allows.
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