Argon2 Hash Generator
Hash passwords with Argon2 (Argon2id/i/d) using presets.
What is Argon2?
An Argon2 password hashing tool — the modern recommended alternative to bcrypt. It runs fully in the browser via a WASM implementation.
How it works
argon2-browser computes the hash using the chosen variant, memory, time, and parallelism, with presets for typical use.
- Enter your input. Type or paste your input into the field above — the tool responds instantly.
- Review the result. Output updates live as you type. Everything runs entirely in your browser.
- Copy or download. Use the Copy button to grab the result, or Download to save it as a file.
Examples
Password hashing done right
Generate an Argon2id hash with tunable memory and time costs — the OWASP-recommended choice for password storage.
Common mistakes
Weakening the parameters
Lowering memory or iterations to make hashing faster also makes brute-forcing faster. Keep the defaults or raise them.
Frequently asked questions
Which Argon2 variant should I use?
Argon2id — it balances side-channel resistance with GPU resistance, which is why OWASP recommends it.
Does the hash string include parameters?
Yes — the encoded string embeds the version, salt, and cost parameters, so verification needs no extra configuration.