A UUID (Universally Unique Identifier) is a 128-bit identifier that is unique across all devices and systems. UUIDs are commonly used in databases, APIs, and applications to generate unique identifiers without centralized coordination.

What is the difference between UUID v1 and UUID v4?

UUID v1 is based on the current timestamp and MAC address, making it time-ordered and potentially traceable. UUID v4 is randomly generated, offering better privacy and uniqueness across distributed systems without any traceable information.

Can I use UUIDs for security purposes?

UUIDs are designed for uniqueness, not security. For security-critical applications, use them alongside strong encryption and authentication mechanisms. Never rely solely on UUIDs for security.

UUID Generator

Generate Universally Unique Identifiers (UUIDs) instantly for databases, APIs, applications, and unique identification systems. Create UUID v4 (random), UUID v1 (timestamp-based), or generate multiple UUIDs in bulk.

Select UUID Version: UUID v4: Randomly generated, provides best privacy and works universally. UUID v1: Timestamp-based with MAC address, provides ordering but less privacy.

Generated UUID:

Your UUID will appear here

Number of UUIDs: Max 1000 UUIDs

Output Format:

Generated UUIDs:

Bulk UUIDs will appear here

How to Use the UUID Generator

For Single UUID Generation:

Select your preferred UUID version (v4 or v1) from the dropdown.
Click the "Generate UUID" button to create a new UUID.
The generated UUID will display in the output box.
Use "Copy UUID" to copy it to your clipboard.
Use "Copy as JSON" to copy it formatted as JSON.

For Bulk UUID Generation:

Enter the number of UUIDs you need (1-1000).
Choose your desired output format (List, JSON, CSV, or SQL).
Click "Generate Bulk UUIDs" to create all UUIDs at once.
Use "Copy All" to copy all UUIDs to your clipboard.
Use "Download" to save the UUIDs as a file.

About UUID (Universally Unique Identifier)

A UUID is a 128-bit (16-byte) number used to uniquely identify information in computer systems. It's represented as a 32-character hexadecimal string, typically written as five groups separated by hyphens: 8-4-4-4-12 (e.g., 550e8400-e29b-41d4-a716-446655440000).

UUID Versions Explained:

Version	Method	Use Case	Pros	Cons
v1	Timestamp + MAC	Database records with ordering	Sortable by time	Reveals MAC address, not random
v4	Random	General purpose, maximum privacy	Completely random, privacy-friendly	Not sortable by creation time

Common Uses of UUIDs:

Database Primary Keys: Unique identifiers for records across distributed systems.
API Endpoints: Unique identifiers for resources in REST APIs.
User Sessions: Unique session tokens for web applications.
File Management: Unique identifiers for files in cloud storage systems.
Device Identification: Unique identifiers for connected devices.
Transaction IDs: Unique identifiers for financial and payment transactions.
Event Tracking: Unique identifiers for tracking events in analytics.
Distributed Systems: Generating unique identifiers without central coordination.

Features of Our UUID Generator:

Instant Generation

Generate UUIDs instantly with no delays

Bulk Generation

Create up to 1000 UUIDs at once

Multiple Formats

Export as JSON, CSV, SQL, or text

Easy Copy

Copy with one click to clipboard

Privacy-Focused

Runs entirely in your browser

Mobile-Friendly

Works perfectly on all devices

Pro Tip: UUID v4 is recommended for most use cases as it provides maximum randomness and privacy. Use UUID v1 only if you need timestamp ordering or have specific legacy system requirements.