Security Tools

Free online security tools — Generate passwords, hashes, QR codes, and check password strength. 100% free, no signup, no watermark. All tools run in your browser for instant & private results.

Available Security Tools

• Password Entropy Calculator

  Calculate exact mathematical entropy bits ($E = L \times \log_2(R)$) and estimated brute-force crack time for passwords.

• Bcrypt Hash Generator

  Generate secure bcrypt password hashes with customizable cost factors (work factor 10 to 12) 100% locally in browser memory.

• Multi-Hash Generator (MD5, SHA-256, SHA-512)

  Compute cryptographic hashes (MD5, SHA-1, SHA-256, SHA-384, SHA-512) for text strings using Web Crypto API.

• Password Strength & Entropy Meter

  Check password strength and calculate entropy bits online free. Test vulnerability, time-to-crack estimates, and character pool analysis.

• Password Generator

  Create strong random passwords with customizable length and character rules for maximum security.

• Password Strength Checker

  Analyze password security with crack-time estimates and improvement tips.

• MD5 Generator

  Generate MD5 hash digests from any text string for integrity verification and security.

• SHA256 Generator

  Compute SHA-256 cryptographic hashes for secure data fingerprinting and verification.

• QR Code Generator

  Create QR codes for URLs, text, WiFi credentials, and contact details instantly.

• QR Code Scanner

  Decode QR codes by uploading an image file or using your device camera instantly.

• Random Token Generator

  Produce cryptographically secure tokens in hex, base64, or alphanumeric formats.