Free Security Tools
Protect Yourself Online
Free, privacy-focused security tools to check your passwords, detect phishing, monitor data breaches, and more. No sign-up required.
Privacy-First
Client-Side Processing
No Data Collection
100% Free
Security Tools
Everything you need to stay safe online, all in one place.
Password Strength Checker
Test how strong your password is with real-time analysis. 100% private - your password never leaves your browser.
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Password Generator
Create strong, random passwords with customizable options. Generate secure passwords instantly.
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Email Breach Lookup
Check if your email address has been exposed in known data breaches. Stay informed about your data.
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Phishing URL Detector
Analyze suspicious URLs for phishing indicators. Protect yourself from scams and malicious websites.
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Privacy Checkup
Assess your browser's privacy settings and fingerprint. Discover what websites can learn about you.
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SSL/HTTPS Checker
Verify a website's SSL certificate and security headers. Ensure websites are properly secured.
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DNS Lookup
Query DNS records for any domain. View A, MX, TXT, NS, and other DNS record types.
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Why PrestoSecure?
We built these tools with your privacy and security as the top priority.
Privacy First
Most tools run entirely in your browser. Your sensitive data never leaves your device.
No Account Required
Use all our tools instantly without signing up. No email, no password, no tracking.
Expert Built
Created by cybersecurity professionals using industry-standard methods and best practices.