UUID generator
Generate one or a batch of cryptographically random version 4 UUIDs.
GeneratorsCreate random passwords with your chosen length and character groups.
Ready when you are.
The output is deliberately random. Never reuse a password shown in a tutorial.
Length: 20; lowercase, uppercase, digits and symbols enabled.
A fresh 20-character password containing each selected group.
Choose a length and at least one character group. Every selected group appears in each generated password.
Generated with crypto.getRandomValues, never Math.random. Passwords are not saved; store them in your password manager.
It is not saved by this site. Copy it into your password manager before leaving. Selected character groups are represented; randomness comes from your browser’s cryptographic generator.
No. This tool processes your input in your browser. We don't store your text, files or results. Standard website access logs are separate; read our privacy notes.
Yes. No account, subscription or usage credits are required.
Use Copy or Download after running the tool. Inputs are not saved automatically and disappear when you leave or refresh the page.
Something not right? Report a problem with this tool. Include the steps, but never passwords or private input.
Generate one or a batch of cryptographically random version 4 UUIDs.
GeneratorsCalculate SHA-256, SHA-384 or SHA-512 hashes of text using Web Crypto.
Developer toolsCreate QR codes for links, text, Wi-Fi and contact cards. Choose error correction and download PNG or SVG. No account required.
Generators