Free Password Generator
Create strong, unique passwords in seconds. Everything happens locally in your browser — passwords are never sent over the network, logged, or stored on a server. Built and maintained by Datastrive, a Chicago managed IT and cybersecurity provider.
- Cryptographically secure randomness
- Random, memorable, or PIN modes
- Free forever — no signup or account
Three modes for three real-world scenarios
Not every password needs to look the same. Pick the mode that matches how you'll actually use the password.
Random
For accounts you'll save in a password manager. Maximum entropy, no compromises — mix of upper, lower, numbers, and symbols. Use this for everything you don't need to type by hand.
Memorable
For passwords you have to remember or read aloud — Wi-Fi keys, master passwords, shared meeting room codes. Four random words give you strong security that's still human-friendly.
PIN
For numeric-only codes — alarm panels, voicemail, device unlock, garage keypads. Always longer than the four digits most systems default to. Six or more is recommended.
Password best practices for businesses
The rules of password security have changed. The advice your IT department gave you a decade ago — complex characters, frequent rotation, password expiry — has been reversed by current guidance from NIST and the CISA. Here's what actually matters in 2026.
- Length beats complexity A 16-character random password or a four-word passphrase is exponentially stronger than “P@ssw0rd!” no matter how many symbols you cram in. Aim for 14–20 characters on anything that matters.
- Every account gets its own password When one site is breached, attackers run the leaked credentials against every other major service in seconds. This is called credential stuffing, and it's how most account takeovers happen. Reuse breaks this defense.
- Use a password manager You can't remember 200 unique strong passwords — nobody can. Tools like 1Password, Bitwarden, or Keeper handle storage and autofill. You only need to remember one strong master password.
- Turn on multi-factor authentication everywhere Especially for email, banking, and any admin accounts. An authenticator app (Authy, 1Password, Microsoft Authenticator) or hardware key is significantly stronger than SMS codes, which can be intercepted via SIM swapping.
- Stop forced rotation on a schedule NIST removed routine rotation from its recommendations years ago. Forcing users to change passwords every 90 days pushes them toward predictable patterns (Spring2025!, Summer2025!) that are easier to guess. Rotate when there's a reason — suspected compromise, departing employees, role changes.
- Check your exposure Run your business email addresses through Have I Been Pwned to see if they've appeared in known breaches. If they have, change those passwords immediately and assume the old one is in attacker hands.
Frequently asked questions
Is this password generator safe to use?
Yes. The generator runs entirely in your browser using the browser's built-in cryptographic random number generator (crypto.getRandomValues). No password you generate here is ever sent to our server, logged, or stored anywhere. You can verify this yourself: open your browser's developer tools, switch to the Network tab, generate as many passwords as you want, and you'll see no outgoing requests.
You can also disconnect from the internet entirely after the page loads — the generator will keep working.
What actually makes a password strong?
Three things, in this order: length, randomness, and uniqueness. A truly random 16-character password has roughly 100 bits of entropy — well beyond what current attackers can brute-force. A four-word random passphrase from a decent word list lands in a similar range.
What does not make a password strong: substituting letters for numbers (e.g., “P@ssw0rd”), adding a number to the end, or capitalizing the first letter. Attackers' cracking tools have known about those tricks for two decades.
Should I use random characters or a passphrase?
Both work if they're long enough. Use random characters for any password you'll save in a password manager — you don't need to type or remember them, so you might as well maximize entropy per character.
Use a passphrase (the Memorable mode) for the handful of passwords you do need to remember or type by hand: your password manager's master password, your laptop login, your office Wi-Fi. Four random words is the practical floor for anything important.
How often should I change my passwords?
Only when there's a reason. Modern guidance from NIST explicitly advises against scheduled password expiry, because it pushes users toward weak, predictable variations of their old passwords.
Reasons to change a password: you suspect it's been compromised, you've reused it elsewhere and one of those services was breached, an employee with access has left, or you're moving away from a shared password to individual accounts.
Are eight characters enough?
Not for anything that matters. An 8-character password drawn from upper, lower, numbers, and symbols can be cracked offline in hours by a modestly equipped attacker if the password hash leaks. For accounts protecting business data, financial systems, or email, push for 14 characters minimum — and turn on multi-factor authentication regardless.
What if a website limits my password length?
Use the longest length the site allows, fill it with random characters, and turn on multi-factor authentication. A site that caps passwords at 12 characters or rejects symbols is showing you that its security practices are dated — which means MFA is even more important there.
Need help locking down your business?
Datastrive is a Chicago managed services provider helping small and mid-sized businesses harden their IT — including the identity and access layer behind most modern breaches. If you're tired of running password security on willpower alone, we'd love to help.
Talk to Datastrive →