Are Online Password Generators Safe?
A fair question, and one you should be able to answer yourself rather than take on trust. Here's exactly what to check.
The Short Answer
A browser-based password generator is safe if, and only if, it generates the password entirely on your device using a cryptographically secure random source, and never transmits it anywhere. Whether any specific site does this is not something you should have to take on faith. It's verifiable in under a minute using tools already built into your browser.
How to Verify a Generator Yourself
This works on any website, not just this one:
- Open the password generator page.
- Open developer tools (Windows/Linux: F12; Mac: Cmd+Option+I) and select the "Network" tab.
- Clear the network log if there's a "Clear" button.
- Click the site's "Generate" button.
- Watch the Network tab. If a request appears at that moment (especially one that isn't just loading an image or font), investigate what data it sends.
You can go further: search the page's JavaScript source (also visible in developer tools, under "Sources") for crypto.getRandomValues (the correct, secure method) versus Math.random(), which should never be used for password generation.
Red Flags to Watch For
- A network request fires when you click "Generate." There is no legitimate reason for a password generator to contact a server for this action.
- The generated password appears in the page's URL (as a query parameter). This can leak into browser history, server logs, and referrer headers.
- No privacy policy, or a privacy policy that doesn't specifically address password handling.
- The site uses
Math.random()visible in its source. This is a technical detail most users can't check, but it indicates the developers didn't prioritise cryptographic correctness. - Excessive third-party analytics or ad scripts loaded on the same page as the generator, increasing the number of parties with code execution on the page.
How This Site's Generator Works
Every generator on PassGeneratorTool.online runs entirely in your browser using crypto.getRandomValues(), the Web Crypto API's cryptographically secure random source, also used by browsers for TLS/SSL. No generated password is ever sent to our servers, logged, included in analytics events, or placed in a URL. You can verify this yourself using the steps above; the source is plain JavaScript with no build step or minification obscuring what it does.
The Fully Offline Alternative
If you want zero reliance on any website, even one you've verified, dedicated password manager applications (Bitwarden, 1Password, KeePass) include their own local generators that never touch a network connection at all. This is a reasonable extra step for particularly high-value credentials, though it is not necessary once you've verified a generator behaves as described above.
Frequently Asked Questions
Open developer tools, go to the Network tab, and click generate. If nothing appears in the network log at that moment, it was generated entirely in your browser. This works on any website.
Yes, if you've verified it generates client-side with a cryptographically secure random source and makes no network call. Don't take a privacy claim on faith; check it yourself with the method above.
If your generated password is transmitted to a server, or generated with predictable randomness, an attacker with access to that data or algorithm could know your password before you've even used it, completely undermining the point of generating it randomly.
Try it yourself right now
Generate a password below, then check the Network tab. See for yourself that nothing is sent.
Use the Password Generator →