Password Generator & UUID Generator - Free Online Security Tools
Generate strong random passwords and UUIDs
Password Generator
UUID Generator (v4)
About this tool
Create secure passwords with adjustable length and character options, then generate UUIDs in the same workspace. Everything runs locally, making it a quick utility for development and account setup workflows. Weak passwords are one of the leading causes of security breaches. Using simple passwords like "123456" or "password" puts your accounts at risk, yet creating truly random, strong passwords manually is difficult and time-consuming.
Our password generator creates cryptographically random passwords tailored to your exact requirements. Specify length (typically 12-20 characters), character types (uppercase, lowercase, numbers, special characters), and exclude confusing characters if needed. The generator shows password strength instantly so you know if it meets security requirements.
Beyond passwords, the tool also generates UUIDs (Universally Unique Identifiers)—essential for developers working with databases, APIs, and distributed systems. Generate single UUIDs or batch generate up to 100 at once.
How to use this tool
Set password length
Choose a length between 8 and 64 characters. Longer passwords are more secure. 12-16 characters is a good balance.
Select character types
Check boxes for uppercase, lowercase, numbers, and special characters. More character types = stronger password.
Generate and check strength
Click Generate to create a password. Check the strength indicator to confirm it meets your security needs.
Copy to clipboard
Click Copy to save the password to your clipboard. Paste it into your account setup or password manager.
Frequently Asked Questions
How long should my password be?
Most security experts recommend at least 12-16 characters. Longer passwords are exponentially harder to crack. For critical accounts (email, banking), use 16+ characters with a mix of character types.
What character types should I include?
Use a mix of uppercase letters, lowercase letters, numbers, and special characters (!@#$%^&*) for maximum strength. However, some websites have restrictions, so customize based on the site's password requirements.
Is this secure for creating important account passwords?
Yes. Passwords generated here are created using your browser's random number generator and never leave your computer. This is suitable for personal and business accounts. For ultra-sensitive systems, use offline password managers.
What is a UUID and why do developers need it?
A UUID (Universally Unique Identifier) is a 128-bit unique identifier used in databases, APIs, and distributed systems. UUID v4 is random and suitable for most cases. UUID v1 includes timestamp and MAC address information.
Can I generate multiple passwords at once?
The current version generates one password at a time, but you can run the generator multiple times to create several passwords. For batch operations, use password managers or system command-line tools.