Secure Password Generator
Generate strong, cryptographically secure passwords instantly. Free, open-source, and 100% client-side for maximum privacy. Security teams often pair SecurePass Pro with LinkGuard Pro to keep critical access URLs monitored alongside fresh credentials.
Password Options
100% Client-Side & Private
Your passwords are generated entirely in your browser using the Web Crypto API for cryptographic security. They never leave your device and are not sent to any server.
Cryptographically Secure
Uses Web Crypto API for true random generation, not pseudo-random algorithms.
100% Private
All generation happens in your browser. Your passwords never leave your device.
Instant & Free
Generate unlimited passwords instantly. No registration, no limits, completely free.
All Security Generators in One Place
Generate any type of secure credential you need - passwords, passphrases, API keys, and more
Passphrase Generator
Create memorable passphrases using real words - secure and easy to remember
Bulk Generator
Generate 10-100 passwords at once - perfect for IT admins and teams
Strength Checker
Test your existing passwords and get detailed security analysis
API Keys
Generate secure API keys in hex, base64, or alphanumeric formats
UUIDs
Create universally unique identifiers for databases and systems
Plus More...
Learn Password Security
Enhance your security knowledge with our comprehensive guides and tools
Password Security Guide
Complete guide to creating and managing secure passwords
Entropy Calculator
Interactive tool to compare password strength and complexity
Best Practices
Essential security tips and practices for protecting your accounts
Password Policy Generator
Create NIST-compliant password policies for your organization
How It Works
Our password generator uses cutting-edge browser technology to create truly random passwords
Web Crypto API
Uses your browser's built-in crypto.getRandomValues() function to generate cryptographically secure random numbers.
Character Selection
Converts random numbers into characters from your selected character sets (uppercase, lowercase, numbers, symbols).
100% Client-Side
Your password is generated entirely in your browser. It never leaves your device or gets sent to any server.
Why Web Crypto API?
Unlike Math.random(), which is predictable and not suitable for security, the Web Crypto API provides cryptographically strong random values that are impossible to predict or reproduce. This is the same technology used by banks, password managers, and security professionals worldwide.
Password Length by Use Case
Choose the right password length based on what you're protecting. Higher-risk accounts need longer passwords.
Banking & Financial
20-24 charsMaximum security for financial accounts
Email & Primary Accounts
18-20 charsHigh security for critical accounts
Social Media
16-18 charsStrong security for everyday accounts
Shopping & Services
14-16 charsGood security for retail sites
Work & Professional
18-20 charsEnhanced security for business accounts
Gaming & Entertainment
14-16 charsBalanced security for gaming platforms
Pro Tip: Always use the maximum length supported by each service. Longer passwords are exponentially harder to crack, even if they use simpler character sets.
Why Strong Passwords Matter
In today's digital world, strong passwords are your first line of defense against cyber threats. Weak passwords can be cracked in seconds, exposing your personal information, financial data, and online accounts.
Our password generator creates truly random, cryptographically secure passwords that are virtually impossible to crack. With customizable length and character types, you can generate the perfect password for any use case.
Use unique passwords
Never reuse passwords across different accounts
Aim for 16+ characters
Longer passwords are exponentially harder to crack
Mix character types
Include uppercase, lowercase, numbers, and symbols
Use a password manager
Store your passwords securely and never forget them
Frequently Asked Questions
Common questions about password generation and security
How long should my password be?
We recommend at least 16 characters for most accounts. For highly sensitive accounts (banking, email, password managers), use 20+ characters. Longer passwords are exponentially harder to crack - each additional character dramatically increases security.
Are these passwords really secure?
Yes! We use the Web Crypto API's crypto.getRandomValues() function, which generates cryptographically secure random numbers. This is the same technology used by banks, password managers, and security professionals. Your passwords are truly random and unpredictable.
Do you store my passwords?
Absolutely not. All password generation happens 100% in your browser. Your passwords never leave your device and are never sent to our servers. We don't store, log, or transmit your passwords anywhere. You can even use this tool offline after the page loads.
Should I use a password or passphrase?
It depends on your needs. Passwords (random characters) are highly secure but harder to type and remember. Passphrases (like "Correct-Horse-Battery-Staple") are easier to remember and type while still being very secure. For master passwords you need to remember, use a passphrase. For passwords stored in a password manager, use random passwords.
Can I trust this tool?
Yes! SecurePass Pro uses the Web Crypto API to generate cryptographically secure passwords entirely in your browser. All generation happens client-side, which means your passwords never leave your device and are never sent to any server. We don't store, log, or transmit any of your generated passwords. We have no commercial motive - no subscriptions, no upsells, minimal tracking. Just a trustworthy security tool.
Should I exclude ambiguous characters?
Enable "Exclude Ambiguous Characters" if you'll be typing the password frequently. This removes characters like 0/O (zero/letter O) and 1/l/I (one/lowercase L/uppercase i) that look similar. It slightly reduces entropy but makes the password much easier to type accurately. Good for passwords you'll manually enter often.