Password Generator
Generate cryptographically random passwords with configurable character sets.
About Password Generator
Password Generator creates strong, cryptographically random passwords with character sets you control. Use it to make a unique password per account instead of reusing the same one, or to satisfy a site's complexity rules. Generation uses your browser's secure randomness and happens entirely on your device, so no password is ever transmitted or stored.
- Category
- create
- Input
- No file input — params only.
- Output
- Outputs: text/plain.
- Cost
- Free, runs in your browser
- Memory
- low
Common uses
- Generate a unique 20-character password for a new account instead of reusing an old one
- Produce a password that meets a site's symbol-and-number complexity requirement
- Create a high-entropy passphrase-length string for a master password or vault entry
- Make a quick random credential for a test or staging environment
- Generate letters-and-numbers-only passwords for systems that reject special characters
- Spin up several distinct passwords in a row when setting up multiple service accounts
Frequently asked questions
Are these passwords actually random and secure?
Yes. They're generated with the browser's cryptographically secure random number generator (Web Crypto), not a predictable Math.random source.
What character sets can I configure?
You can include or exclude uppercase, lowercase, digits, and symbols, and set the length, so the result matches each site's rules.
Is the password sent to any server?
No. It's generated locally in your browser and never transmitted, logged, or stored anywhere by the tool.
Should I save it somewhere?
Yes. The tool doesn't remember anything once you leave, so copy each password into a password manager immediately after generating it.
Can I generate more than one at a time?
Run it again for each new credential you need; every run draws fresh randomness, so the results are independent.
Keywords
- password
- generate
- random
- secure
- credentials