Security for Everyone
PrestoSecure provides free, privacy-focused security tools to help you protect yourself online. No accounts, no tracking, no compromises.
Our Mission
In an increasingly digital world, everyone deserves access to security tools that actually protect their privacy. Too many "free" security services collect your data, track your behavior, or require account creation.
PrestoSecure was built with a different philosophy: your security tools shouldn't compromise your privacy. That's why most of our tools run entirely in your browser, and we never collect, store, or sell your data.
Our Values
Most tools run entirely in your browser. Your sensitive data never leaves your device. We don't track you or collect your information.
We're clear about how each tool works, what data it needs, and where that data goes. No hidden tracking, no dark patterns.
Security tools should be available to everyone, regardless of technical expertise. Our tools are free, easy to use, and require no account.
About the Creator
Preston Wertz
Cybersecurity Researcher
PrestoSecure was created by Preston Wertz, a cybersecurity professional dedicated to making security accessible to everyone. With experience in security research and a passion for privacy, Preston built these tools to help everyday users protect themselves online.
Our Tools
Password Strength Checker
Uses the zxcvbn algorithm to analyze password strength. Runs entirely in your browser - your password never leaves your device.
Password Generator
Generates cryptographically secure random passwords and passphrases using the Web Crypto API. All generation happens locally.
Email Breach Lookup
Checks if your email appears in known data breaches using the Have I Been Pwned database. We don't store or log any emails checked.
Phishing URL Detector
Analyzes URLs for common phishing indicators using heuristic analysis. Runs entirely in your browser.
Privacy Checkup
Examines your browser's privacy settings and fingerprint. All checks run locally - nothing is sent to any server.
SSL/HTTPS Checker
Verifies SSL certificates and security headers for any website. We don't log which sites you check.
DNS Lookup
Queries DNS records for any domain. No information about your lookups is stored.
Contact
Have questions, feedback, or found a bug? We'd love to hear from you.