Secure Password Generator
Generate strong, random passwords from 8 to 64 characters with uppercase, lowercase, number, and symbol toggles — cryptographically secure, created in your browser.
🔒 100% Client-Side Processing
Your data is processed entirely in your browser and never transmitted to any server.
16 characters
~103 bits of entropy at this length and character set.
Common Use Cases
Creating account passwords
Generate a strong unique password for each new account and store it in your password manager instead of reusing one.
Provisioning credentials
Create initial passwords for new team members, service accounts, or database users that meet complexity policies.
Seeding secrets for development
Fill local .env files and test configs with strong values so weak placeholder passwords never leak into production habits.
Frequently Asked Questions
- How strong are the generated passwords?
- Each character is drawn using crypto.getRandomValues() — a cryptographically secure source, unlike Math.random() — with rejection sampling so every character in your chosen set has exactly equal probability. The entropy shown live below the options is length × log2(character-set size); at the 16-character default with all four sets enabled, that is roughly 103 bits, far beyond practical brute-force reach.
- Is it safe to use a password generated in a browser?
- Yes — generation happens locally with the WebCrypto API and the password never leaves the page. Best practice remains: use a unique password per site and store them in a password manager rather than reusing this one.
- Can I generate a password without symbols?
- Yes — uncheck Symbols and the password draws only from your remaining checked categories (uppercase, lowercase, numbers). At least one category must stay checked, since an empty character set can't produce a password.
- What length should I use?
- NIST and most security guidance now recommend length over complexity — 16+ characters is a solid default, and many sites cap at 64. Use the slider to match a specific site's minimum/maximum requirement.
- Is my data private when I use this tool?
- Yes. This tool runs entirely in your browser using client-side JavaScript — nothing you type is transmitted to, logged by, or stored on any server. You can safely process confidential text, tokens, or code.