Random UUID with 122 bits of randomness
No UUIDs Generated Yet
Click "Generate UUIDs" to create unique identifiers
Generate unique identifiers for your applications
Random UUID with 122 bits of randomness
Click "Generate UUIDs" to create unique identifiers
A UUID (Universally Unique Identifier) is a 128-bit value used to uniquely identify information in computer systems. UUIDs are crucial for distributed systems, databases, APIs, session identifiers, and more — helping avoid collisions without requiring a centralized authority.
Our UUID Generator allows you to instantly generate Version 4 (random) or Version 7 (timestamp-based) UUIDs with ease. Whether you’re building high-concurrency systems, database schemas, or handling sessions in web applications, this tool ensures quick access to globally unique IDs.
Globally unique: UUIDs are guaranteed to be unique across different systems and points in time, which helps prevent duplication.
Secure and random (v4): Version 4 UUIDs are generated using cryptographic randomness, making them ideal for secure applications like tokens or session IDs.
Time-sortable (v7): Version 7 UUIDs are based on timestamps, which means they can be sorted chronologically — perfect for database indexing and logs.
No central coordination needed: UUIDs can be generated independently by different systems without requiring a central server or authority.
Great for database indexing: Version 7 UUIDs improve database performance by generating keys in a natural time-based order.
Standard and interoperable: UUIDs follow an open format (RFC 4122), making them compatible with most systems, programming languages, and libraries.
Supports both UUID Version 4 (random) and Version 7 (timestamp-based)
Instantly generates one or many UUIDs at a time
Option to specify the number of UUIDs to generate
“Copy All” button to quickly copy all generated UUIDs
“Clear” button to remove the current UUIDs and start fresh
Fully browser-based — no data is sent to a server
Works on desktop, tablet, and mobile devices
Lightweight and fast with no dependencies or setup needed
User-friendly interface for quick and easy use
Great for developers, database admins, and API designers
Generating Unique IDs for Database Records
Programmers often need unique identifiers for database rows. UUIDs ensure each record has a globally unique ID, making it safer for distributed systems and migrations.
Assigning Resource IDs in APIs
In RESTful APIs, UUIDs are commonly used as identifiers for users, posts, products, or sessions. This avoids exposing sequential IDs and reduces guessability.
Creating Session or Token Identifiers
UUIDs are great for generating secure session tokens, password reset links, verification codes, or API keys that are hard to predict and duplicate.
Building Distributed Systems
In microservices or distributed environments, each service can generate UUIDs independently without a central authority, avoiding conflicts.
Generating Temporary Identifiers
UUIDs can be used for temporary links, cache keys, temporary file names, or any short-lived task that requires a non-colliding ID.
Tracking Logs and Events
Assign UUIDs to user actions, transactions, or logs so they can be traced uniquely, even if they originate from different systems.
Use in Frontend Applications
Frontend developers use UUIDs to assign unique keys in dynamic lists (like in React) or to tag DOM elements for tracking purposes.
Avoids ID Collisions
You don’t have to worry about two systems accidentally creating the same ID, even if they’re running independently.
Improves Security
UUIDs are harder to guess than sequential integers, helping prevent unauthorized data access in URLs or forms.
Simplifies Scaling
As your system grows, UUIDs allow easy scaling without modifying how IDs are generated across services.
Supports Time-based Sorting (v7)
With Version 7 UUIDs, developers can generate IDs that are sortable by time, which is extremely useful in logging, event tracking, or time-ordered data.
Reduces Need for Centralized Coordination
No need for a central server to assign IDs—each system component can generate its own UUIDs.
Works Across Languages and Platforms
UUIDs are supported in virtually every major programming language and database system, making integration seamless.
Ideal for Testing and Prototyping
Developers can quickly generate test data with unique IDs for debugging, demos, or seeding databases.
Select UUID Version
Choose between Version 4 (random) or Version 7 (timestamp-based).
Set Quantity
Enter how many UUIDs you want (1, 10 etc.).
Click “Generate UUIDs”
The list of UUIDs will appear below.
Use Options
Copy All to clipboard
Clear to remove the current batch and regenerate
| Feature | UUID v4 | UUID v7 |
|---|---|---|
| Generation Type | Random | Timestamp-based |
| Sortable | ❌ No | ✅ Yes |
| Collision Risk | Very Low | Very Low |
| Determinism | ❌ No | ✅ Partial (timestamp based) |
| Database Key Friendly | ❌ Not ideal | ✅ Perfect for indexing |
| Ideal Use | Sessions, tokens | Logs, records, primary keys |
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