Free online security and privacy tools

Generates strong passwords from simple memorable actions so they need not be written down.

Rates a password and estimates how long a brute-force attack would take, without sending it anywhere.

Hashes a string with bcrypt at a chosen salt-round count and checks a string against an existing bcrypt hash.

Creates a BIP39 mnemonic and passphrase pair from random entropy, or converts between mnemonic and passphrase.

Hashes text with MD5, SHA-1, SHA-2, SHA-3 or RIPEMD-160 and shows the digest in several encodings.

Computes an HMAC from a message and secret key using a selectable hash function.

Decodes a JSON Web Token and shows its header and payload claims.

Generates and checks time-based one-time passwords for two-factor authentication from a secret.

Extracts the original URL from a Microsoft Outlook Safe Links wrapper link.

Generates a new random RSA public and private key pair in PEM format.

Masks the middle of a secret, token or IBAN so you can share it while keeping it recognisable.

Locks text with a passphrase using a symmetric cipher of your pick (AES, TripleDES, Rabbit, RC4) and reverses it.

Generates a random string from the character sets you pick: upper, lower, digits and symbols.

Applies the ROT13 letter substitution cipher to text.