UUID Generator – Free Online Tool
Generate, batch-create, and validate UUIDs (v4) instantly.
903c13fe-4344-4a77-b634-6f6947c39140c62ae19f-0574-4950-8129-7e1c459794054e557e5f-a8a0-40c1-9b08-78f1992ff4124894cb7a-fa14-4f74-9cd8-9769534c1151e0170617-52b1-41fd-bcc6-f71630068c08Example
Input
Generate 1 UUID
Output
550e8400-e29b-41d4-a716-446655440000
A randomly generated UUID v4 in standard 8-4-4-4-12 format.
How to Use UUID Generator
- 1
Generate
Click Generate to create a new UUID.
- 2
Batch
Set a count and generate multiple UUIDs at once.
- 3
Validate
Paste a UUID to check if it's in valid format.
What is UUID Generator?
The UUID Generator creates version 4 UUIDs using the browser's crypto.getRandomValues() for true randomness. It supports single generation, batch creation of up to 1000 UUIDs, and format validation. All generated UUIDs follow the RFC 4122 standard.
Common Use Cases
- ✦Generating database primary keys
- ✦Creating unique identifiers for API resources
- ✦Producing correlation IDs for distributed system logging
Embed This Tool
Add this tool to your website or blog with a simple iframe embed.
<div style="max-width:480px"><iframe src="https://buildutilities.com/embed/uuid-generator?ref=embed" width="480" height="360" frameborder="0" style="border-radius:8px;border:1px solid #2a2e3a;width:100%"></iframe><p style="font:11px sans-serif;color:#888;margin:4px 0 0;text-align:right">Powered by <a href="https://buildutilities.com/uuid-generator?ref=embed" target="_blank" rel="noopener">BuildUtilities</a></p></div>
Share
Share a link to this tool. Results can be passed via URL parameters.
https://buildutilities.com/share/uuid-generatorFrequently Asked Questions
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