Cryptographic Salt Generator
Generate cryptographically secure random salts for password hashing and encryption
Click Generate to create a saltSalt Configuration
Bulk Generation
Salt Best Practices
Use Unique Salts
Generate a new unique salt for each password. Never reuse salts across different users or passwords.
Minimum 16 Bytes
Use at least 16 bytes (128 bits) of salt. 32 bytes is recommended for high-security applications.
Cryptographic Random
Always use a cryptographically secure random number generator. This tool uses the Web Crypto API.
Store with Hash
Store the salt alongside the password hash. The salt is not secret - its purpose is to ensure uniqueness.
Usage Examples
// Generate salt using Web Crypto API
const salt = crypto.getRandomValues(new Uint8Array(32));
const saltHex = Array.from(salt)
.map(b => b.toString(16).padStart(2, '0'))
.join('');
// Hash password with salt (using SubtleCrypto)
const encoder = new TextEncoder();
const data = encoder.encode(password + saltHex);
const hashBuffer = await crypto.subtle.digest('SHA-256', data);Similar Tools
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