Security ToolsNewRuns in your browser
Password Generator
Create strong random passwords with your browser’s secure random generator.
About Password Generator
A password you can remember is a password an attacker can guess. This generator uses your browser’s cryptographic random number generator — the same primitive password managers use — to produce genuinely unpredictable passwords, and shows an honest strength estimate in bits of entropy alongside a plain-English answer to "how long would this take to crack?". Nothing is transmitted, logged or stored.
How to use Password Generator
- 01
Set the length
Drag the slider. Sixteen characters is a sensible minimum for an important account; longer is always better.
- 02
Choose character types
Keep all four types on unless a site refuses symbols. Turn on "exclude similar characters" if you will be typing the password by hand.
- 03
Generate
A new password appears immediately. Press Generate again for another one.
- 04
Copy and store it
Copy the password straight into your password manager. Do not email it to yourself.
Features
- Length from 8 to 128 characters
- Toggle uppercase, lowercase, numbers and symbols
- Exclude similar-looking characters such as l, I, 1, O and 0
- Entropy-based strength meter with a crack-time estimate
- Generate a batch of passwords at once
- Copy to clipboard with one click
- Uses crypto.getRandomValues — never Math.random
Frequently asked questions
Everything people ask about the Password Generator.
Yes. They come from `crypto.getRandomValues`, the operating system’s cryptographically secure random source exposed to the browser. There is no seed you could reconstruct and no pattern to exploit.
No. Generation happens entirely in your browser tab. Nothing is sent over the network — you can disconnect from the internet and it still works.
Twelve characters with mixed types is a reasonable floor, sixteen is a good default, and twenty or more is worth it for email and banking — those accounts can reset everything else.
Entropy in bits, calculated from the length and the size of the character set. Every extra bit doubles the number of guesses required, so 60 bits is a million times harder to crack than 40.
No. When any one site is breached, reused passwords are tried everywhere else automatically. Use a unique password per site and a password manager to keep track of them.
Yes, completely. There is no account to create, no trial that expires, no watermark on the output and no feature held back behind a paywall. The site is supported by unobtrusive advertising, not by charging you.
No. Password Generator runs entirely inside your browser, so your input never leaves your device. You can confirm this by opening your browser's network tab — there is no upload request.
Yes. Because processing happens locally, there is no copy of your data on any server to leak, subpoena or lose. Nothing is logged and nothing is stored.
Yes. The interface is built mobile-first, with touch-friendly controls and layouts that adapt to small screens. Everything that works on a desktop works on a phone.
Once the page has loaded, yes. All processing is local, so you can carry on working if your connection drops.
Any current version of Chrome, Edge, Firefox, Safari or Opera, on desktop and mobile. If something behaves oddly, updating your browser resolves it in almost every case.
Yes. Whatever you produce here is yours — use it in client work, products, packaging or publications. There is no watermark, no licence to accept and no attribution required.
No. There is nothing to keep: your data is never transmitted, and it is cleared from memory as soon as you close or reload the page.
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