About this tool
Generate version-four UUID strings in the requested quantity. Review the output format before using it in a test fixture, document or application that expects this identifier version.
Calculations and file processing run in this browser tab. The tool does not send working inputs or files to our hosting server.
मुख्य इनपुट और नियंत्रण हिंदी में देखने के लिए ऊपर “🇮🇳 हिंदी में देखें” चुनें। गणना और फ़ाइल प्रोसेसिंग इसी ब्राउज़र टैब में होती है; टूल आपके इनपुट हमारी होस्टिंग पर नहीं भेजता।
Features
- Work with Number of UUIDs to Generate (1 to 50).
- Format Case: choose from lowercase (standard); UPPERCASE.
- Review UUID Count; RFC Version; First UUID in the result breakdown.
Benefits
- Prepare several identifier candidates consistently.
- Avoid manually assembling UUID syntax.
Who should use this tool?
- Developers preparing test records.
- People checking a UUID-format example.
How to use
- Complete the labelled fields for your scenario, including Number of UUIDs to Generate (1 to 50). Use the units shown beside each field.
- Choose Format Case to match the situation you want to check.
- Select Calculate / Run Tool and review Generated 5 RFC 4122 UUID v4(s) and UUID Count; RFC Version.
- Check the assumptions and limitations below. Adjust a value to compare scenarios, then copy or download the result you need.
Try these worked examples
| Scenario | Example inputs | Example result |
|---|---|---|
| Generate 5 Standard Lowercase UUID v4s | Number of UUIDs to Generate (1 to 50): 5Format Case: lowercase (standard) | e660dea7-e1dd-4ac2-8224-5abb986c0162 |
| Generate 10 Uppercase UUID v4s | Number of UUIDs to Generate (1 to 50): 10Format Case: UPPERCASE | 8B423285-4682-451D-847F-DCE74161E481 |
Reference and processing
IETF RFC 4122 / RFC 9562 UUID Version 4 Standard · Listed applicability: 2025-2026
Calculations and file processing run in this browser tab. The tool does not send working inputs or files to our hosting server.
FAQs
Does a UUID reveal the person or record it will identify?
The generated value is an identifier candidate, not a lookup result. The relationship to a person or record comes from how an application stores and uses it.
Which inputs do I need for UUID v4 (RFC 4122) Bulk Generator?
Use Number of UUIDs to Generate (1 to 50); Format Case. The built-in examples show how those fields fit together.
What should I check before using this result?
Up to 50 UUIDs per click. Check the assumptions and output against your intended task before relying on the result.
What happens to the information I enter?
Calculations and file processing run in this browser tab. The tool does not send working inputs or files to our hosting server. Tool favourites save only tool IDs in this browser. Sharing sends the tool link, not your working values or files.