Analyze password security with 10 criteria checks, entropy calculation, crack time estimation, character breakdown, warnings, and improvement suggestions
How strong is your password, really? Paste it in and find out. This checker estimates crack time, flags common patterns like dictionary words and keyboard walks, and suggests specific improvements. Everything runs locally, your password never leaves the page.
Initializing in your browser…
Generate ultra-secure passwords with presets (Simple to Paranoid), strength analysis, entropy calculation, crack time estimation, password history, and bulk generation
Check if a website has valid SSL/TLS certificate. Verify HTTPS connection and get tools for detailed certificate analysis
Analyze any URL for phishing, suspicious patterns, and security risks. Detects login keywords, suspicious TLDs, encoded characters, brand impersonation, and more
Before you reuse a "clever" password, you want an honest estimate of how fast it actually falls to a real cracking attack.
Password tested
Summer2024!
Assessment
Score: 1 / 4, Weak Pattern detected: Capitalised word + year + "!" suffix Guesses: ~2 thousand (dictionary + date + symbol rules) Offline fast-hash crack time: under 1 second Suggestion: avoid season/year patterns; use 4+ random words
The checker does not just count character classes, it models how crackers actually work, recognising that "capital word + year + symbol" is one of the first patterns tools like Hashcat try. "Summer2024!" satisfies most naive complexity rules yet falls almost instantly, which is exactly why this estimate is more useful than a green "strong" badge based on length alone.
How strong is your password, really? Paste it in and find out. This checker estimates crack time, flags common patterns like dictionary words and keyboard walks, and suggests specific improvements. Everything runs locally, your password never leaves the page.
Check whether your current passwords hold up against modern cracking techniques.
Test candidate passwords against your organization's strength requirements before deploying them.
Demonstrate to colleagues why "Summer2024!" is weaker than it looks.
Rather than just counting character types, this checker analyzes entropy, pattern recognition, and dictionary matches to provide a realistic strength estimate. It catches sequences ("abcd"), repeated characters, common substitutions ("p@ssw0rd"), dates, and keyboard patterns that automated cracking tools exploit first.
No. All analysis happens in your browser. Nothing is sent to any server.
Length alone isn't enough. If the password contains common words, patterns, or predictable substitutions, cracking tools will find it quickly.
Length plus randomness. A 20-character random string is far stronger than a short string with every character type.
This runs as client-side JavaScript. Keys, tokens, payloads, and other inputs never leave your device.