UUID Generator
Generate a cryptographically random UUID v4 locally with your browser.
Privacy
Secure Random Password Generator
Generate strong random passwords locally with the Web Crypto API and control length, symbols, numbers and ambiguous characters.
Your input is processed only as required by this tool.
Secure Random Password Generator
Strong unique passwords reduce the damage caused by password reuse and credential leaks. This generator uses the browser's cryptographically secure random source, ensures the selected character groups are represented and shuffles the result locally before displaying it.
How to use it
- Enter the value you want to process.
- Choose the available options for the output you need.
- Generate the result locally in your browser, then copy or use it without uploading the input to Ciatto Tools.
How to read the result
Longer random passwords generally provide more search space than short passwords built from predictable substitutions. For accounts that support them, use a password manager and multi-factor authentication instead of memorizing and reusing one strong password everywhere.
Limitations
A generated password is only one layer of account security. Phishing, compromised devices, insecure recovery flows and server-side password handling can still expose an account. Store unique passwords in a reputable password manager.
Frequently asked questions
Are passwords sent to Ciatto Tools?
No. Password generation uses the browser's Web Crypto API and the generated password does not need to leave your device.
How long should a random password be?
There is no universal length for every system, but longer unique random passwords are generally preferable when a service supports them. The default here is designed to provide comfortable headroom without relying on predictable patterns.