UUID Generator

🆔 What is a UUID?

A UUID (Universally Unique Identifier) is a 128-bit value used to uniquely identify information in computer systems. UUID v4 is generated using random numbers, making collisions extremely unlikely.

A typical UUID looks like:

  • 123e4567-e89b-12d3-a456-426614174000

⚙️ How This UUID Generator Works

  • Generate UUID v4:Create a new random UUID v4 with a single click.
  • Copy with Notification:Click the UUID to copy it to your clipboard with visual feedback.
  • Local Processing:All generation and copying happens in your browser for privacy and speed.

📚 Example

Generated UUID v4:

  • e.g. 550e8400-e29b-41d4-a716-446655440000

💡 Common Use Cases

  • Database Keys:Assign unique IDs to database records.
  • API Tokens:Generate unique tokens for authentication and session management.
  • Distributed Systems:Ensure uniqueness across multiple servers or services.
  • File Names:Create unique file names to avoid collisions.

❓ Frequently Asked Questions

Q: Are UUIDs really unique?

A: The probability of generating two identical UUID v4 values is astronomically low, making them unique for all practical purposes.

Q: What standard does this tool follow?

A: All UUIDs generated conform to the RFC 4122 specification for version 4.

Q: Can I use this tool offline?

A: Yes, all generation and copying is performed locally in your browser.

🎯 Best Practices

  • Use UUIDs for Uniqueness:Use UUIDs when you need a unique identifier that is hard to guess or collide.
  • Store as Strings:Store UUIDs as strings in databases for compatibility.
  • Validate Format:Ensure UUIDs match the standard 8-4-4-4-12 format.
  • Security Awareness:Do not use UUIDs as secrets or passwords.

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