Generate UUID Online
Create unique UUIDs/GUIDs instantly with support for v1, v4, and v7 versions. Batch generate up to 1,000 identifiers with multiple output formats.
Sample UUID v4
Click to copy
Why Choose Our UUID Generator?
Multiple Versions
Generate UUID v1 (timestamp), v4 (random), or v7 (sortable timestamp) based on your needs.
Batch Generation
Generate up to 1,000 UUIDs at once. Perfect for seeding databases or testing applications.
Multiple Formats
Output in canonical, uppercase, no hyphens, Base64, or URN format for any use case.
Complete Privacy
All generation happens locally in your browser. No data is sent to any server.
How UUID Generation Works
1. Choose Version
Select UUID v1 for timestamp-based, v4 for random, or v7 for sortable timestamp identifiers.
2. Generate Instantly
Click generate or press Space to create UUIDs instantly. Set quantity for batch generation.
3. Copy or Download
Click any UUID to copy it. Download batches as text, CSV, or JSON for your projects.
UUID Use Cases
Database Primary Keys
UUIDs make excellent primary keys for distributed databases. They prevent ID collisions across multiple servers without coordination.
API & Session Tokens
Generate unique tokens for API keys, session identifiers, and authentication tokens that are virtually impossible to guess.
Time-Ordered Records
UUID v7 embeds timestamps, making records naturally sortable by creation time. Perfect for event logs and time-series data.
Testing & Development
Generate batches of test data, mock database records, or sample identifiers for development and testing workflows.