Password Generator — Free Online Tool
Cryptographically random passwords — generated entirely in your browser.
How to Use the Password Generator
The password generator is engineered for speed — most users get to a clean answer in under ten seconds. Here's the three-step workflow:
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Step 1
Pick a length — 16+ is recommended, 20+ is ideal for long-term accounts.
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Step 2
Toggle the character sets you want. More variety = stronger password; the entropy meter updates live.
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Step 3
Click Generate new until you get one you like, then Copy into your password manager.
Benefits of Using Our Password Generator
Not every online text tools tool respects your time. This one does. Here's what you get when you choose BizNY:
- Uses
window.crypto.getRandomValues()— a cryptographically secure randomness source, not the weaker Math.random. - Entropy meter shows estimated strength in bits, so you know what "strong" actually means.
- Runs 100% in your browser — no password ever leaves your device, which is non-negotiable for this use case.
- Option to avoid ambiguous characters (O/0, 1/l/I) for easier manual entry on less helpful input fields.
- Length up to 64 characters for high-security accounts and server credentials.
- Mobile-friendly — works great for generating a password directly on the device where you'll use it.
The Growing Popularity of the Password Generator
Password generators have gone from niche developer tools to mainstream household utilities as password managers like 1Password, Bitwarden, and iCloud Keychain have gone mainstream. The password generator on BizNY is built to that bar: cryptographically secure randomness (not Math.random), configurable character classes, ambiguous-character avoidance, and a strength meter that reports real entropy in bits. Critically, everything runs client-side — because a password that a remote server has ever seen is a password that can't really be trusted.
Who uses the password generator?
- Anyone signing up for a new online account and doing it right
- Developers and sysadmins generating database passwords and API keys
- Security teams rotating credentials after a breach disclosure
- Students learning about randomness and cryptography
Frequently Asked Questions
Common questions about the password generator — if you have something else, drop us an email at support@bizny.co.
How strong is a password from this tool?
The strength depends on length and character variety. A 20-character password using all four character classes has about 130 bits of entropy — essentially unbreakable with current computing.
Is my password sent to a server?
No. Random bytes are generated by your browser's cryptographic random source (window.crypto.getRandomValues) and characters are selected locally. Your password never leaves your device, not even to us.
Why avoid ambiguous characters?
Some fonts make 0 (zero) and O (letter O), or 1, l, and I, look identical — meaning a person who has to read and retype the password can guess wrong. Skip this option if you only ever use the password manager's autofill.
What's entropy in bits?
It's a mathematical measure of password unpredictability. 60 bits is strong; 80+ is very strong; over 100 is essentially uncrackable by brute force on current hardware. Each extra character adds entropy; each extra character class adds more.
Should I use this instead of my password manager's generator?
They're functionally equivalent — both use secure randomness. If you already have a password manager, its built-in generator is convenient. Our tool is great when you're signing up on a device without a manager, or generating passwords outside the context of a browser fill.
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