scrypt
Derive a key from a password with scrypt (memory-hard). Paste your data, then click to dissect it. Everything runs on your device, nothing is sent to a server.
Everything runs in your browser. Your data is never sent to our servers.
Example
Example Input
my-passphrase
Example Output
Derived key (hex): e3f1… + Salt
How to Use
- 1Paste your data (PEM/Base64/token) into the Input field.
- 2Click the button (or press Ctrl+Enter) to dissect it.
- 3Read the decoded result in the Output field.
About scrypt
scrypt is a memory-hard key derivation function: besides taking time, it also consumes a lot of memory, making it far more expensive to attack with specialized hardware (GPU/ASIC) than PBKDF2.
This tool derives a key from a password with adjustable N (cost), r, and p parameters, plus a salt (random if blank). Output is in hex with adjustable length.
scrypt suits password-based encryption and is used in many crypto wallets. For derivation from a high-entropy secret, use HKDF; for storage password hashing, see Argon2.
FAQ
Are my data or keys sent to a server?
No. scrypt runs entirely in your browser using the Web Crypto API and client-side libraries. Your data, passwords, and keys never leave your device.