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Password Generator
Generate secure, random passwords locally in your browser.
Use Tool ➜TechCompare
Security Tools
Generate strong, cryptographically random passwords locally in your browser.
1 tool in this category
About Security Tools
TechCompare's security tools generate and transform sensitive data entirely in your browser. The Password Generator uses the Web Crypto API to produce cryptographically random passwords — nothing is sent to a server, nothing is logged, and the page works offline after the first load.
Use this when you need a strong unique password for a new account, a recovery key for a password manager, or a short random string for an API test. You can tune length, character sets, and the number of passwords generated at once, then copy any result with one click.
Frequently asked questions
Is the Password Generator actually secure?
Yes. It uses crypto.getRandomValues() — the browser's built-in cryptographically secure random source — to generate characters. The output never leaves your device, isn't logged, and the whole page works offline once loaded.
How long should my password be?
For a password manager vault or any account that holds money or identity, aim for 20+ characters from a mixed character set. Shorter passwords are fine for low-value accounts if they're unique per site, since the real defence against credential stuffing is never reusing a password.
Should I enable symbols and numbers?
Symbols raise entropy per character, which helps shorter passwords. For 20+ character passwords drawn from letters and digits alone, symbols add little practical strength but can cause copy-paste issues with legacy forms — a common reason to leave them disabled.
Is generating passwords in a browser as safe as using a password manager?
For generating them, yes — the same Web Crypto API powers most password managers. The difference is storage: a password manager remembers and autofills, while a browser tool only produces the string. Use the generator to create the password, then save it in a trusted password manager.
Can I use this for API keys or recovery codes?
Yes. Increase the length to 32+ characters and include all character classes for high-entropy secrets. For API keys specifically, make sure the service you're using treats them as case-sensitive — some legacy systems normalise case and halve the effective entropy.