UUID Generator
Fast batch UUID v4 generation with custom case, hyphens, and separators.
Range 1–100
About This Tool
This is a simple yet powerful online UUID (Universally Unique Identifier) generator. It runs entirely in your browser, using the cryptographically secure random number generator (Crypto API) to quickly produce RFC 4122-compliant Version 4 UUIDs. You can generate up to 100 UUIDs at once and flexibly customize the output format: toggle between uppercase/lowercase, remove hyphens (-) with one click, and choose from various separators like newlines, commas, or semicolons. The generated UUIDs are never uploaded to any server, ensuring your data remains absolutely secure.
Features
- 🔒 Secure & Reliable: Generated using browser Crypto API for true randomness
- ⚡ Batch Generation: Generate 1-100 UUIDs at once for bulk needs
- 🎨 Custom Format: Toggle uppercase/lowercase and hyphen removal freely
- 📝 Flexible Separators: Built-in options for newline, comma, semicolon, etc.
- 📋 Easy Copy: Copy individual UUIDs or the entire list with one click
- 🛡️ Privacy First: All processing happens locally, no network requests