Security & Auth
Private cryptographic security tools running locally in your browser. Generate strong passwords, calculate entropy, verify hash checksums, and create 2FA TOTP.
All Tools in Security & Auth (13)
2FA / TOTP Authenticator Code Generator
Generate 6-digit Time-based One-Time Passwords (TOTP) from secret keys locally in your browser with live countdown.
Password Strength & Entropy Checker
Analyze password strength, entropy bit score, crack time estimates, and identify weak pattern vulnerabilities.
Advanced Password Generator with Custom Rules
Create ultra-secure passwords with custom character sets, required symbol inclusions, and length up to 128 characters.
Random PIN Code Generator
Generate cryptographically random 4-digit, 6-digit, and 8-digit numeric PIN codes for ATMs and locks.
Secure Passphrase Generator (Diceware)
Generate memorable, high-entropy Diceware-style multi-word passphrases that are easy to remember and impossible to crack.
Text Encryptor & Decryptor (AES)
Encrypt sensitive text messages with AES-GCM 256-bit encryption using a secret password, fully in-browser.
File Hash & Checksum Checker
Verify file integrity by calculating MD5, SHA-1, and SHA-256 checksums of any local file in-browser.
Password Expiry & Age Checker
Calculate password age, determine when corporate passwords expire (30/60/90 days), and set expiry reminders.
Custom Rule Password Generator
Generate passwords meeting exact complexity rules (exact symbols, capital letter minimums, no repeated characters).
Bulk Password Generator
Generate up to 500 unique, cryptographically secure passwords at once with CSV and plain text export.
Password Entropy Calculator
Calculate Shannon entropy bits (E = L × log2(R)) and brute-force resistance time for any password.
Memorable Word Password Generator
Generate easy-to-type, memorable multi-word passwords combining clean dictionary words with numbers and symbols.
PIN Code Strength Checker
Test numeric PIN codes against known leaked PIN databases, sequential patterns (1234), and repeated digits.
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