Strong Password Generator and UUID Generator

Generate strong random passwords with the length and characters you need, plus random UUID v4 values. Generated in your browser with a cryptographically secure random source.

About 126 bits of entropy

UUID v4

Passwords are generated in your browser with crypto.getRandomValues and never sent anywhere.

How it works

What makes a password strong

Length beats complexity

Each extra character multiplies the number of possibilities. 16 random characters are out of reach for brute force; 20+ is a good default for anything important.

One password per site

Reused passwords leak together. Use a password manager to keep a different random password for every account.

FAQ

Frequently asked questions

How many bits of entropy do I need?

80 bits or more is strong for online accounts; use 128 bits for keys and secrets.

What is a UUID v4?

A 128-bit random identifier, practically unique, used as database keys and request IDs.

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Cloud servers with SSH key login

KVM servers with full root access

Cloud Servers