All Tools
Browse our full collection of free, accurate online tools
Redirect Checker
7 Reasons Security-Conscious Developers Swear By Redirect Checker Every click on a shortened URL is a small a…
Use Tool →Open Graph Checker
What Exactly Is an Open Graph Checker, and Why Should Security-Minded People Care? An Open Graph Checker is a…
Use Tool →Sitemap Generator
Sitemap Generators Are a Security Risk — And Other Myths That Need to Die Every few months, a developer in so…
Use Tool →Robots.txt Checker
What a Robots.txt Checker Actually Tells You (And What It Doesn't) Most developers treat robots.txt like a fo…
Use Tool →Whois Lookup
So What Exactly Is a Whois Lookup? Think of the internet like a giant city. Every website is a building, and …
Use Tool →DNS Lookup
When Domains Lie: How DNS Lookup Tools Expose What's Really Happening Behind a Web Address In late 2023, a sm…
Use Tool →HTTP Header Checker
The Day I Finally Understood What My Server Was Broadcasting I had been running a small personal blog for abo…
Use Tool →Website Speed Test
Website Speed Test Tools: How the Field Stacks Up (and Why This One Earns Its Place) If you've ever stared at…
Use Tool →Password Strength Tester
Why Your Password Is Probably Weaker Than You Think Most people believe they create strong passwords. They ad…
Use Tool →SSL Certificate Checker
What an SSL Certificate Checker Actually Tells You (And Why You Should Care) Most website owners install an S…
Use Tool → 🔑Strong Password Generator
Generate cryptographically strong, random passwords instantly in your browser — with full control over length…
Use Tool → 📝Passphrase Generator
Generate memorable yet cryptographically strong Diceware-style passphrases from random words with your choice…
Use Tool → 💪Password Strength Meter
Test your password's real security with entropy-based scoring, time-to-crack estimates, and detailed weakness…
Use Tool → 🚨Have I Been Breached Checker
Check if your email or password has appeared in known data breaches using the privacy-safe k-anonymity SHA-1 …
Use Tool → 🔢PIN Code Generator
Generate cryptographically strong random PINs of any length, automatically filtered to exclude weak sequences…
Use Tool → 📋Bulk Password Generator
Generate dozens or hundreds of unique, cryptographically strong passwords in one click — customize length, ch…
Use Tool → 🧮Password Entropy Calculator
Calculate the exact bit-entropy of any password and understand what makes it mathematically hard to guess — i…
Use Tool → 🧠Memorable Password Generator
Generate passwords that are easy to say out loud and remember, yet strong enough to resist brute-force attack…
Use Tool → 🔍Pwned Password Hash Lookup
Hash your password locally with SHA-1, then query the HaveIBeenPwned breach database using only the first 5 c…
Use Tool → 📶WiFi Password Generator
Generate strong, unique WPA2/WPA3 WiFi passwords that are long enough to resist dictionary attacks and brute-…
Use Tool → 🗝️Password Manager Master Key Builder
Craft a single ultra-strong, memorable master password using passphrases, custom rules, and real-time strengt…
Use Tool → ⏱️Crack Time Estimator
Enter any password and see exactly how long modern GPUs, cracking clusters, and nation-state botnets would ne…
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