What Makes a Password Strong?
Length beats complexity. Every extra character multiplies cracking time — a 16-character password from a 90-character pool has about 9016 possibilities, which would take modern hardware billions of years to brute-force.
Combinations = pool size ^ length
- 12–16 characters — good for everyday accounts
- 20+ characters — recommended for email, banking and password-manager master passwords
- Unique per site — reuse is the #1 cause of account takeovers
Why This Generator Is Safe
Many online generators create passwords on a server — meaning someone else's computer briefly knows your new password. ToolsFlash uses your browser's built-in cryptographic random number generator (crypto.getRandomValues), the same API used by password managers. The password is born on your screen and exists nowhere else. You can even disconnect from the internet and this page keeps working.
Need a QR code to share Wi-Fi credentials? Try our QR Code Generator.
Frequently Asked Questions
How long should a strong password be?
At least 12–16 characters for regular accounts, 20+ for critical ones. Length matters more than complexity.
Is this password generator safe to use?
Yes — passwords are generated on your device with your browser's cryptographic RNG. Nothing is transmitted, stored or logged.
Should I use symbols in my passwords?
Yes, when allowed. Symbols grow the character pool from 62 to ~90, making each position ~1.5× harder to guess.
How should I store generated passwords?
Use a reputable password manager, and never reuse a password across sites.