Free to use tools to enhance your cybersecurity skills and protect your digital life.
Paste a raw email header to reveal sender path, authentication results, and warning signs. Ideal for spotting phishing that looks real in the message body.
Create unique passwords and passphrases with client side randomness. Copy once and store it in your password manager for safer reuse.
Build memorable passphrases using wordlists. You control the word count and separators for a balance of strength and recall.
Check whether your browser is using encrypted DNS. Learn the steps to enable private DNS on Android and other platforms.
Paste a link to view its visible destination and basic signals before you click. Learn common redirect tricks and safer opening habits.
A printable checklist for travel and coffee shop work. Verify network names, use a VPN, and avoid logins that reveal sensitive information.
Use this tool to encode or decode sensitive text or files before sending across untrusted networks. Perfect for travel, coffee shops, or any public Wi-Fi scenario.
Generate UFW, iptables, or nftables rules with safe defaults, optional country blocking, and an admin-IP allowlist. Export and import profiles — all client-side.
Identify what matters most, assess real-world risks, and plan simple, practical fixes. Build and print your personal or project threat model in minutes.
Learn if your email appears in known breaches. Follow our guidance to rotate credentials and enable multi factor authentication.
I build these to solve real problems. If you have an idea that would help protect your daily workflow, send a note and I will consider it for this page.