Key Facts
- Category
- AI & Generators
- Input Types
- select, number, text
- Output Type
- text
- Sample Coverage
- 2
- API Ready
- Yes
Overview
Generate unique identifiers instantly with our versatile UUID generator, supporting v1, v4, and v5 standards for your development and database needs.
When to Use
- •When you need to generate unique primary keys for database records.
- •When creating session tokens or transaction IDs for web applications.
- •When you require deterministic identifiers based on specific namespaces for system integration.
How It Works
- •Select your preferred UUID version (v1, v4, or v5) from the version dropdown.
- •Specify the number of UUIDs you need to generate, up to 100 at once.
- •For v5, provide a namespace and a unique name string to ensure deterministic output.
- •Click the generate button to instantly produce your unique identifiers.
Use Cases
Database schema design requiring unique non-sequential primary keys.
Distributed systems needing to generate unique IDs without a central authority.
Software testing environments requiring bulk generation of unique mock data.
Examples
1. Bulk Database Key Generation
Backend Developer- Background
- Setting up a new user table and needing 50 unique IDs for initial testing.
- Problem
- Manually creating unique strings is error-prone and slow.
- How to Use
- Select UUID v4, set the count to 50, and click generate.
- Example Config
-
version: v4, count: 50 - Outcome
- A list of 50 unique, random UUIDs ready to be copied into the database script.
2. Deterministic ID Creation
System Architect- Background
- Need to generate consistent IDs for internal resources based on domain names.
- Problem
- Standard random UUIDs don't allow for re-generating the same ID for the same resource.
- How to Use
- Select UUID v5, choose the DNS namespace, and enter the resource name.
- Example Config
-
version: v5, namespace: dns, name: example.com - Outcome
- A consistent, deterministic UUID that will always be generated for the input 'example.com' within the DNS namespace.
Try with Samples
generatorPDF Samples
Generated PDF samples from tools dated 2026-02-01 to 2026-02-10
task generate
Time Zone Workflow Scheduler ICS Samples
ICS files generated in the same structure returned by the Time Zone Workflow Scheduler, with multiple VEVENT meeting candidates exported from overlap windows
task generate
Related Hubs
JSON Schema, Mock Data, and API Fixture Generators
Curated tools for JSON schema generation, mock payload building, and API fixture preparation in one hub.
CSS Effects, Palettes, and Design Token Generators
Curated tools for CSS visual effects, palette building, and design token generation in one hub.
Printable PDF Layout and Template Generators
Curated tools for printable PDF layout generation and reusable document templates in one hub.
Audio Preview, Tone, and Effect Generator Tools
Compare audio preview generation, silence creation, ringtone building, fingerprinting, loudness reports, and effect-style audio generators in one hub.
FAQ
What is the difference between UUID v1 and v4?
UUID v1 is time-based and includes the node's MAC address, while UUID v4 is generated using random numbers.
Can I generate multiple UUIDs at once?
Yes, you can specify the count field to generate up to 100 UUIDs in a single batch.
What is a namespace in UUID v5?
A namespace is a predefined UUID used as a seed for v5 generation, ensuring that the same name always produces the same UUID.
Are these UUIDs globally unique?
UUID v4 provides a high degree of randomness, making collisions statistically improbable for most applications.
Do I need to install any software to use this?
No, this is a web-based utility that runs directly in your browser.