Best Free Security & Privacy Tools

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Last updated: May 1, 2026

Check passwords, validate emails, generate secure tokens, and audit your online security with these free tools.

Top 10 Security Tools — Ranked

#1

Password Generator

Generate strong, random passwords

#2

Password Strength Checker

Test how strong your password is

#3

Email Validator

Verify email addresses exist and are valid

#4

Credit Card Validator

Validate credit card numbers (Luhn check)

#5

IP Lookup

Find geolocation and ISP for any IP

#6

SSL Certificate Checker

Verify SSL certificate validity

#7

Port Checker

Check if network ports are open

#8

Hash Calculator

Generate MD5, SHA-256, and other hashes

#9

Two-Factor Auth (TOTP)

Generate TOTP codes for 2FA

#10

What's My IP

Check your public IP address

Frequently Asked Questions

Is it safe to check passwords online?

Our password tools process data client-side in your browser. Passwords are never sent to any server.

How strong should my password be?

Minimum 12 characters with mixed case, numbers, and symbols. For high-security accounts, use 16-20+ characters.

Should I use a password manager?

Absolutely. Use a reputable password manager (Bitwarden, 1Password, KeePass) to generate and store unique passwords for every account.