How random are these passwords?

Passwords are generated using the browser crypto.getRandomValues() API, which provides cryptographically strong randomness.

What makes a strong password?

A strong password is at least 16 characters long and includes a mix of uppercase, lowercase, numbers, and symbols. Length is the single most important factor.

Are generated passwords stored anywhere?

No. Passwords are generated entirely in your browser and never transmitted or stored. Once you leave the page, they are gone.

Password Generator

Security Tools

Generate strong random passwords with customizable options

By DevToolHQ teamUpdated 2026-04-15100% client-sideMethodology

100% client-side processing

Length: 20

4128

Character Sets

uppercaselowercasenumberssymbols

About Password Generator

Generates cryptographically random passwords using the browser's crypto.getRandomValues() API — the same randomness source used by cryptographic libraries. The generated passwords are never transmitted or stored; they exist only in your browser session. The tool lets you configure length (8 to 128 characters), character sets (uppercase A-Z, lowercase a-z, digits 0-9, symbols !@#$%^&*), and quantity (generate multiple at once for batch provisioning). A visual strength indicator rates passwords based on length and character diversity, though the primary factor is length — a 20-character lowercase-only password is stronger than a 12-character complex one. For general account passwords, 16+ characters with all character classes is the recommended baseline. For service accounts or API keys where human memory is not a concern, 32+ characters with full character sets is better. For PIN-style numeric codes, you can restrict to digits only. The "no ambiguous characters" option removes visually similar characters (0/O, 1/l/I) — useful for passwords that will be typed rather than pasted. Generated passwords should be stored in a password manager immediately; there is no way to recover them once you navigate away.