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UUID Generator

Generate cryptographically random v4 UUIDs instantly in your browser. Supports single and bulk generation with copy-to-clipboard and history tracking.

uuid generator random developer-tools

Published March 21, 2026

All interactive tools run entirely in your browser. Your data never leaves your device.

How It Works

Click the generate button to create a cryptographically random v4 UUID using the browser’s native crypto.randomUUID() API. The tool keeps a history of the last 5 generated UUIDs for easy access.

Features

  • Single Generate: Create one UUID with a single click
  • Bulk Generate: Generate up to 10 UUIDs at once
  • History: Tracks the last 5 generated UUIDs
  • Copy: One-click copy for individual UUIDs or all at once
  • Cryptographic: Uses the Web Crypto API for true randomness

Use Cases

  • Generating unique IDs for database records during development
  • Creating test data with unique identifiers
  • Producing correlation IDs for distributed system debugging