Password Generator by TechTools – Generate Strong, Random Passwords Instantly
Weak passwords are the single most common cause of account breaches. The TechTools Password Generator creates cryptographically random passwords instantly, with full control over length, character types, and exclusions — all directly in your browser. No passwords are ever sent to any server.
How to Use
Choose your desired length using the slider or quick-select buttons (5 to 64 characters). Toggle uppercase, lowercase, numbers and symbols on or off. Enable "No Ambiguous" to exclude confusing characters like O and 0, or 1 and l. Use the exclude field to remove specific characters. Generate multiple passwords at once by increasing the quantity, then copy or download them all in one click.
What Makes a Password Strong?
A strong password has three properties: length (16+ characters), variety (mix of all character types), and randomness (not based on words or patterns). A 16-character password using all character types has over 10^29 possible combinations — practically impossible to crack by brute force.
Cryptographically Random — Not Math.random()
This tool uses the browser's window.crypto.getRandomValues() API — the same standard used by security software. Unlike JavaScript's Math.random(), crypto-random values are truly unpredictable and suitable for security purposes.
Frequently Asked Questions
Are the generated passwords safe to use? ▼
Yes. Passwords are generated using the browser's cryptographically secure random API and are never transmitted anywhere. They exist only in your browser.
What length should I choose? ▼
For most accounts, 12–16 characters with all character types is excellent. For high-value accounts like email or banking, use 20+. For API keys and system passwords, 32–64 is ideal.
What is the "No Ambiguous" option? ▼
It excludes characters that look similar: 0 (zero) and O (letter O), 1 (one) and l (lowercase L) and I (uppercase i). Useful when you need to type or read a password aloud.
Can I generate multiple passwords at once? ▼
Yes. Increase the quantity counter to generate up to 50 passwords at once. Copy them all or download as a .txt file.
Does TechTools store my generated passwords? ▼
No. Everything runs in your browser. No passwords, settings or data are sent to any server, stored, or logged anywhere.