Strong Password Generator
Create random, secure passwords instantly.
Generated with your browser's secure random generator. Nothing is sent or stored — refresh and it's gone.
About the Password Generator
Free password generator. Create strong, random passwords with the length and character types you choose — generated privately in your browser and never sent anywhere.
Everything is calculated instantly in your browser — nothing you type is uploaded or stored. Bookmark Calcooly for the next time you need it.
How to use the Password Generator
- 1Choose the length and which character types to include.
- 2A strong password is generated instantly.
- 3Click copy, or the refresh icon for a new one.
Frequently asked questions
Are the passwords secure?+
Yes — they're created with your browser's cryptographic random generator and never leave your device.
What makes a strong password?+
Length matters most. Use 16+ characters with a mix of uppercase, lowercase, numbers and symbols.
Is my data private?+
Yes. Every calculation runs in your browser — the numbers you enter are never sent to a server or stored anywhere.