Security & Authentication Tools

PBKDF2 Hash Generator

Generate a real PBKDF2 hash using your browser's native Web Crypto API - configurable iterations and hash algorithm.

Enter a password, salt, and iteration count - this tool uses your browser's built-in Web Crypto API to compute a real PBKDF2 derived key.

Password

Salt (hex, or leave blank to generate one)

Iterations

Hash Algorithm

Computed using your browser's native Web Crypto API (SubtleCrypto.deriveBits) - a real, standards-compliant PBKDF2 derivation, not a simulated result. Your password is never transmitted anywhere.

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PBKDF2 is the algorithm behind Django's default password hasher and is widely used elsewhere - see the Django Password Hash Generator for Django's exact output format.

What Is PBKDF2?

PBKDF2 (Password-Based Key Derivation Function 2) repeatedly applies a hash function (commonly SHA-256) to a password combined with a salt, a configurable number of times - the repetition ("iterations") is what makes brute-forcing slower, similar in spirit to bcrypt's cost factor.

Why Use This Tool?

PBKDF2 is natively supported by browsers' Web Crypto API, so this tool computes a real, standards-compliant derived key with no external library needed - useful for testing or understanding PBKDF2 output for your own application.

How to Use It

Enter a password and a salt (or generate a random one).
Choose the iteration count and hash algorithm (SHA-256 or SHA-512).
Click Generate - a real PBKDF2 key is derived using the Web Crypto API.
Copy the resulting hex-encoded derived key.

Understanding the Output

Unlike bcrypt/Argon2, PBKDF2 itself doesn't define a single standard "self-contained" string format - different systems (Django, ASP.NET, etc.) package the salt/iterations/hash together differently. This tool shows the raw derived key plus the parameters used, so you can format them however your target system expects.

Frequently Asked Questions

OWASP currently recommends about 600,000 iterations for PBKDF2-HMAC-SHA256. More iterations make each guess slower for an attacker.

With a high iteration count and a random salt it is acceptable, and it is required by some compliance standards. For new systems, Argon2id or bcrypt are generally preferred.

Your browser's built-in Web Crypto API, so hashing is native and fast and nothing leaves your device.