Create strong passwords instantly. Stop using weak credentials and protect your digital life with our free, offline-ready random password generator.
Stores your last 100 copied passwords. Data is saved locally in your browser and never sent to a server.
Why choose PwdSeed?
Humans are predictable. Algorithms are not. To create strong passwords, you need true entropy.
Unlike a predictable passphrase generator that uses dictionary words, PwdSeed uses the Web Crypto API to generate statistically random noise. This makes your password mathematically resistant to brute-force and dictionary attacks.
This is a free strong password generator that runs 100% offline. No data leaves your device.
Whether you need a random passphrase generator style length or specific symbols, you have full control.
When you create random passwords using standard tools, they often rely on `Math.random()`, which is predictable. PwdSeed is different.
We use a CSPRNG (Cryptographically Secure Pseudo-Random Number Generator). This ensures that every character in your password is derived from atmospheric noise and hardware interrupts, making it impossible to reverse-engineer.
const charset = "A-Z,a-z,0-9,#$...";
const entropy = window.crypto.getRandomValues(
new Uint32Array(length)
);
// True Randomness Guaranteed
return entropy.map(x => charset[x % n]);A good password generator must be unpredictable and private. PwdSeed meets both criteria by generating passwords locally on your device using cryptographic APIs.
While PwdSeed focuses on character-based complexity (which provides higher entropy per character), you can use the slider to extend the length up to 50 characters, creating a passphrase password generator effect with superior security.
To create strong passwords, ensure you use a mix of character types and a length of at least 16 characters. Avoid using personal information. Use our tool to handle the randomization.
Yes. PwdSeed is an open-source project. There are no premium tiers, no ads, and no hidden data collection. It is the ultimate random password generator for everyone.