Password Strength Online

Ensure your passwords are secure with our free online password strength checker. Get instant feedback and improve your digital security.

Password Strength Checker Online

Weak Fair Good Strong

Enter a password to see its strength

• × At least 8 characters
• × Uppercase letter
• × Lowercase letter
• × Number
• × Special character

Your password is checked locally in your browser and never sent to our servers. Once you check your password’s strength, you can create new secure passwords using our Password Generator.

Take Your Password Security to the Next Level

While our tools help you create and check passwords, a professional password manager ensures all your passwords are automatically generated, stored securely, and filled in seamlessly across all your devices.

Automatic strong password generation

Secure encrypted vault

Sync across all devices

Privacy First

All password checking and generation happens locally in your browser. Your passwords never leave your device.

Lightning Fast

Instant password strength analysis and secure password generation powered by modern cryptographic algorithms.

Always Free

No registration required, no hidden fees. Our security tools are completely free to use forever.

Why Password Strength Matters

Weak passwords are the leading cause of account breaches. Hackers use automated tools and massive databases of common passwords to crack weak credentials in seconds. Even simple substitutions like "P@ssw0rd" follow predictable patterns that modern attacks can easily identify.

Our strength checker analyzes your password against real-world attack methods, giving you instant feedback about vulnerabilities and helping you understand what makes a password truly secure.

How Our Password Strength Checker Works

Our tool evaluates multiple security factors including length, character diversity, pattern recognition, and comparison against known weak password databases. It calculates entropy and estimates crack time using modern attack methods.

All analysis happens locally in your browser. Your password never leaves your device or gets transmitted to our servers, ensuring complete privacy and security during the checking process.

When to Use Password Strength Checker & Generator Tool

Check existing passwords before important account updates, evaluate new passwords before setting them, and understand why certain passwords are flagged as weak by other systems.

Use this tool as part of your overall security strategy. Remember to use unique passwords for every account and consider using a password manager to generate and store strong, unique passwords securely.

Complete Privacy

Your passwords are analyzed entirely in your browser. No data is ever transmitted to our servers, ensuring complete privacy.

Real-time Analysis

Instant feedback as you type, with detailed explanations of what makes your password strong or weak.

Industry Standards

Based on current cybersecurity best practices and real-world attack methods used by security professionals.

A strong password typically includes at least 8 characters and combines uppercase and lowercase letters, numbers, and special characters. Length is more important than complexity - a 12-character password is significantly stronger than an 8-character one.

Avoid easily guessable information like names, dates, or common words. Strong passwords should be unique and not contain predictable patterns that automated tools can easily identify. Need a strong new password? Try our free Password Generator to create one instantly.

Our password checker is completely safe to use because it runs entirely in your browser using JavaScript. Your password is never transmitted to our servers or stored anywhere - all analysis happens locally on your device.

When choosing any password security tool, always verify that processing happens client-side and that no data is transmitted to external servers. This ensures your sensitive information remains private and secure.

Change passwords immediately if you suspect they’ve been compromised or if a service you use reports a data breach. For regular maintenance, focus on using unique, strong passwords for each account rather than frequent changes.

A password manager can help you maintain unique passwords across all your accounts, making it easier to follow security best practices without the burden of remembering complex passwords.

Password managers are one of the best tools for maintaining good password security. They generate unique, strong passwords for each account and remember them for you, eliminating the need to reuse weak passwords across multiple services.

Modern password managers also provide features like secure sharing, dark web monitoring, and automatic password updates when breaches are detected, making them essential tools for comprehensive digital security.