Generate unique identifiers (UUIDs) and cryptographic hashes for your applications. Perfect for database keys, API tokens, file integrity checks, and security implementations.

UUID Versions:

• Version 1: Time-based UUID using timestamp and MAC address
• Version 3: Name-based UUID using MD5 hashing
• Version 4: Random UUID (most common, cryptographically secure)
• Version 5: Name-based UUID using SHA-1 hashing (recommended over v3)

Hash Algorithms:

• MD5: 128-bit hash (fast but not secure, use for non-security checksums)
• SHA-1: 160-bit hash (legacy, not recommended for security)
• SHA-256: 256-bit hash (secure, recommended for most uses)
• SHA-512: 512-bit hash (maximum security, larger output)

Features:

• Generate single or bulk UUIDs (up to 1000 at once)
• Support for UUID versions 1, 3, 4, and 5
• Generate hashes from text or files
• UUID validation with version detection
• QR code generation for UUIDs
• Timestamp display for v1 UUIDs
• Copy to clipboard functionality
• File hash calculation

Common Use Cases:

• Database Primary Keys: Generate unique identifiers for records
• API Tokens: Create secure random tokens for authentication
• File Integrity: Calculate checksums to verify file integrity
• Git Commits: Understand and generate hash-based identifiers
• Session IDs: Generate unique session identifiers
• Password Hashing: Hash passwords before storage (use proper salt!)

Keyboard Shortcuts:

• Ctrl/Cmd + Enter - Generate
• Ctrl/Cmd + K - Clear