Secure Password Generator Online — Create Random Passwords
Use this secure password generator online to create a random password locally with browser cryptography, without sending it to a server.
About this tool
This online password generator uses cryptographically secure random bytes from your browser to select characters without modulo bias. The character set excludes several look-alike letters and numbers to reduce copying mistakes.
How to use
- Choose the required password length.
- Generate a random password in your browser.
- Copy it directly into a trusted password manager and avoid storing it in plain text.
Features
- Uses crypto.getRandomValues instead of Math.random.
- Generates passwords locally with letters, numbers and symbols.
- Excludes common look-alike characters.
Common use cases
- Create a unique password for a new account.
- Generate temporary credentials for development or testing.
- Replace a reused or weak password with a random value.
Common issues and tips
- Some websites restrict accepted symbols or maximum password length.
- A strong generated password should still be unique and protected by a password manager.
Privacy
Password generation runs locally in your browser. Generated passwords are not uploaded to Tools12345.
Frequently asked questions
Is this password generator cryptographically secure?
It uses crypto.getRandomValues, the browser API intended for cryptographically strong random values, and rejects biased byte values.
How long should a password be?
Longer is generally stronger. Follow the service requirements and prefer at least 16 random characters when the site permits it.
Does Tools12345 save generated passwords?
No. Generation happens in the browser and the result is not sent to the Tools12345 server.