Text Diff Checker
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Compare two pieces of text and see line-by-line additions and deletions, like a Git diff. Highlights every change.
Password Generator
★★★★★★★★★★5.0(0 ratings)👁 1❤ 0
Generate strong, customizable random passwords with letters, numbers, and symbols. Includes strength meter.
Password Generator
Strength: —
About This Tool
What Makes a Password Strong
- Length: 12+ characters minimum, 16+ recommended
- Variety: mix uppercase, lowercase, numbers, and symbols
- Unpredictability: no real words, names, or patterns
- Uniqueness: different password for every site
How This Generator Works
The generator uses your browser’s crypto.getRandomValues API — the same cryptographically secure source used by HTTPS — to produce unpredictable random bytes. Nothing is sent to any server; the password is created entirely in your browser.
Storing Passwords Safely
Even the strongest password is useless if it’s saved in a notes app or sticky note. Use a reputable password manager (Bitwarden, 1Password, KeePassXC) so you can have unique 20-character passwords for every site without memorizing any.
Frequently Asked Questions
Is this password generator safe?
Yes. Generation happens entirely in your browser using crypto.getRandomValues u2014 a cryptographically secure random number generator. The password never leaves your device, never touches a server, and isn't logged anywhere.
How long should my password be?
For most accounts, 16 characters with mixed types is excellent. For high-stakes accounts (banking, primary email, password manager) use 20+. Length increases entropy exponentially u2014 adding one random character is far more impactful than adding more character types.
What does 'bits of entropy' mean?
Entropy measures how unpredictable a password is. Each bit doubles the time to brute-force. 60 bits is generally considered strong; 80+ is very strong; 128+ is overkill for almost any threat. The strength meter calculates this from your length and chosen character pool.