About Strong Password Generator
StrongPasswordGenerator.dev is a free, privacy-first password security tool. We built it because most password generators are either too simple, ad-riddled, or — worst of all — send your generated passwords to a server. Ours never does.
Every password generated on this site is created entirely in your browser using the Web Crypto API (crypto.getRandomValues()). Nothing is transmitted. Nothing is logged. We have no way to see the passwords you generate even if we wanted to.
Alongside the generator, we publish a free security blog covering password managers, two-factor authentication, VPNs, and practical security advice for everyday users.
What We Publish
We focus on password security, account recovery, phishing prevention, password managers, VPNs, and identity protection for normal users, not enterprise security teams.
Who It's For
The site is built for people who want practical steps they can actually follow: stronger passwords, safer defaults, and better decisions after breaches or scams.
How To Reach Us
Readers can send corrections, bug reports, or partnership questions through our contact page. We review messages manually.
How the Generator Works
Passwords are generated using cryptographically secure randomness from the browser's built-in crypto.getRandomValues() API — the same standard used by secure applications worldwide.
Strength is calculated using Shannon entropy: the number of bits of randomness in your password given its character set and length. Crack time estimates assume a dedicated attacker running 10 billion guesses per second.
Password history is stored only in your browser's localStorage — it never leaves your device and is cleared when you clear browser data.
Our Recommendations Philosophy
Our Recommended Tools page lists products we genuinely endorse. Some links are affiliate links — we earn a small commission if you sign up, at no cost to you. This helps keep the site free.
We only recommend tools we'd use ourselves. Affiliate relationships never influence which tools we list or how we describe them. Read our editorial policy for the full review and disclosure process.
Frequently Asked Questions
Is Strong Password Generator truly free?
Yes, Strong Password Generator is completely free to use. We aim to provide a valuable security tool without any cost to our users.
How does Strong Password Generator ensure my privacy?
All password generation happens directly in your browser using the Web Crypto API. We never transmit, store, or log your generated passwords. Your data stays on your device.
Can I trust the randomness of the generated passwords?
Absolutely. We use crypto.getRandomValues(), a cryptographically secure pseudorandom number generator (CSPRNG) provided by your browser, which is the industry standard for secure applications.
Why should I use a strong password generator?
Using a strong password generator helps you create unique, complex passwords that are difficult for attackers to guess or crack, significantly improving your online security.
What This Site Is Not
Strong Password Generator does not provide legal, financial, or incident-response services. Our articles are educational and are meant to help you ask better questions and take safer first steps.
If you're dealing with active fraud, tax identity theft, or an account compromise at work, contact the relevant institution or provider directly before relying on any general guide.