UUID/GUID Generator
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Free Online UUID/GUID Generator
Generate RFC 4122 compliant UUID v4 (random) identifiers instantly in your browser.
All processing is done locally in your browser. Your data never leaves your device.
How to Use UUID/GUID Generator
- Click "Generate" to create a new UUID.
- Copy the generated UUID to your clipboard.
- Generate as many UUIDs as you need — no limits.
Key Features
- RFC 4122 compliant UUID v4
- One-click generation
- Copy to clipboard
- 100% free and unlimited
- Works offline
Frequently Asked Questions
What is a UUID?
A UUID (Universally Unique Identifier) is a 128-bit identifier standardized by RFC 4122. UUID v4 uses random numbers for uniqueness.
Are generated UUIDs truly unique?
UUID v4 uses random numbers with 122 random bits, giving approximately 5.3 × 10^36 possible values — enough to ensure practical uniqueness.
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