Password Generator Pro
Generate strong, random passwords with configurable length and character sets. Shows entropy in bits. Uses crypto.getRandomValues — nothing is uploaded.
Pure browser JavaScript (crypto.getRandomValues) — no external libraries.
How to use this tool
- Set the length and character sets.
- Click Generate for a cryptographically random password.
- Click Copy to copy it to your clipboard.
Generate strong, random passwords with configurable length and character sets. Shows entropy in bits. Uses crypto.getRandomValues — nothing is uploaded.
Frequently asked questions
- How is randomness generated?
- Using crypto.getRandomValues — the same CSPRNG used by password managers and browsers for TLS.
- What is entropy?
- Entropy in bits measures how hard the password is to brute-force. Aim for 80+ bits for strong security.