Secure password generator
Generate random strong passwords. Set length, uppercase, numbers and symbols. For accounts, apps and services.
Free · No sign-up · Runs in your browser · Last reviewed November 2026
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Quick demo: how to use this tool
- Choose the length and which characters to include (capital letters, numbers, symbols).
- Press generate to create a strong password instantly.
- Copy the password with one click; It is generated in your browser, without sending data.
About Password Generator
Generate random strong passwords. Length and characters configurable. Copy to clipboard. Free and secure. Password Generator is a free tool from the Security category of RoviDev. Generate and verify information on your own device, without storing or transmitting it, so that your privacy is always protected.
How to use Password Generator
- Choose the password length (recommended: 16 or more characters).
- Select character types: uppercase, lowercase, numbers, and symbols.
- Click generate and copy the password. Do not share it or reuse it across sites.
How to use a password generator: length, character sets and storage
Strength comes mainly from length and true randomness, not clever substitutions. A generated password has no pattern for an attacker to guess, but you need a safe place to keep it.
Worked example
Rough strength by character set: a 12-character password of lowercase letters has about 56 bits of entropy (2612 combinations), 16 characters from letters and digits has about 95 bits, and 16 characters using uppercase, lowercase, digits and symbols (94 options) has about 105 bits. Each extra character multiplies the work for an attacker, so length helps more than adding one more symbol type.
The generator runs in your browser, so the password is not transmitted. Copy it straight into your password manager and avoid pasting it into chat or email.
Where it helps
- Creating a unique password for each new account.
- Replacing a password after a breach notice.
- Setting up Wi-Fi, router or admin credentials.
- Making a long master passphrase base for a manager.
Common mistakes
- Reusing one generated password on several sites; one leak exposes them all.
- Choosing 8 to 10 characters because they are easier to type; use 16 or more for important accounts.
- Saving it in a plain note or a browser you share with others.
- Removing symbols when a site rejects them but not lengthening the password to compensate.
- Skipping two-factor authentication on email, banking and the password manager.
Frequently asked questions
What makes a password secure?
Its length and variety. A strong password is at least 12-16 characters and combines uppercase, lowercase, numbers and symbols. The longer and more random, the better.
Are the passwords I generate saved or sent?
No. Everything is generated in your browser with a random generator; They are never sent or stored on any server.
Should I use a different password for each account?
Yes. Reusing passwords is the biggest risk: if they leak one, they compromise all of them. Use a single one per service and save them in a password manager.
How often should I change my passwords?
Change them if you suspect a leak or if a service is breached. For critical accounts, also enable two-step verification.
Are generated passwords better than ones I invent?
Usually yes. People tend to follow patterns (names, dates, keyboard runs) that attackers try first, while random characters have none.
What should I do if a site limits password length or symbols?
Turn off the unsupported characters and use the maximum allowed length. If the limit is very low, enable two-step verification where it is offered.