Text & Code
UUID Generator
Generate UUID v4, v1, and v7 identifiers with batch generation, formatting, and validation.
UUID Version
Batch Count
1Output Format
Batch Separator
All UUIDs are generated entirely in your browser. Nothing is sent to any server.
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About UUID Generator
OptiPix UUID Generator creates universally unique identifiers directly in your browser using cryptographically secure random number generation. Generate single or batch UUIDs (up to 100 at once) in v4 (random), v1 (timestamp-based), v7 (modern Unix timestamp + random), or Nil format. Choose from five display formats: standard with hyphens, without hyphens, uppercase, URN notation, or with braces. Validate any UUID by pasting it — the tool identifies its version and confirms validity. Export batches separated by newlines, commas, or as a JSON array. Copy individual UUIDs or all at once, and download batch results as a .txt file. All generation uses crypto.getRandomValues() for cryptographic randomness. Nothing is sent to any server — your UUIDs are generated entirely on your device.
How It Works
The tool uses the Web Crypto API (crypto.randomUUID() for v4, crypto.getRandomValues() for v1 and v7) to generate cryptographically secure random bytes, then formats them according to the RFC 4122 UUID specification with the correct version and variant bits.
Use Cases
- •Generate unique identifiers for database records
- •Create UUIDs for API request tracing and correlation
- •Generate GUIDs for software configuration files
- •Batch generate UUIDs for data migration scripts
- •Validate UUIDs received from external systems
Frequently Asked Questions
What UUID versions are supported?
Are the UUIDs cryptographically random?
Can I generate multiple UUIDs at once?
Can I validate a UUID?
What is the difference between v4 and v7?
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