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Salt Generator

Random Salts for Password Hashes — computed locally in your browser.

Generate a cryptographic salt

Value
Bit strength:
Byte length:
Use a fresh salt for every stored password hash.

How to use the Salt Generator

  1. Choose the byte length for the salt.
  2. Pick hex, Base64 or Base64url as the output format.
  3. Copy the salt and store one unique value per stored password.

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Frequently Asked Questions

Common questions about the free online salt generator.

A salt is a unique random value stored next to each password hash so that identical passwords produce different hashes.
Sixteen random bytes is a good default and anything from sixteen to thirty two bytes is considered safe.
No. A salt only has to be unique and unpredictable, so it can be stored in plain text beside the hash.
It is generated with the Web Crypto random number generator in your browser, which is suitable for cryptographic use.
No. Generate a new salt for every password, because a shared salt lets an attacker crack many accounts with one precomputed table.
It stops precomputed rainbow tables and hides identical passwords, but a slow hash is still needed against guessing.
Hex is easiest to store in text columns, while Base64 and Base64url are shorter but contain characters that need care in URLs.
Yes, for key derivation a salt of at least sixteen bytes is normal, but it must still be unique per key and stored with the ciphertext.
No. The value is created locally and only leaves your browser when you copy it yourself.

Last updated: October 10, 2026