How does Zadein work?

Zadein is a browser extension that adds AI tools directly into your browsing experience. Highlight text or open the Zadein assistant to run actions like summarizing, rewriting, translating, or analyzing content without leaving the page.

Yes. Zadein is built with privacy-first principles. The extension does not collect or store your browsing history. AI tools only process the specific text you choose to send for analysis.

Can I use Zadein for free?

Yes. Zadein offers a free tier that includes access to the browser extension and a set of core AI productivity tools. Free users can run AI tools with limited usage.

AI credits represent the processing cost of running AI tools. Each time you use an AI tool credits are consumed based on the operation performed. Paid plans include a monthly allocation of credits.

Can I cancel my subscription anytime?

Yes. Subscriptions can be canceled at any time through the billing portal. Your paid features remain active until the end of the current billing period.

Free UUID and ULID Generator Online

Zadein's UUID generator creates cryptographically secure universally unique identifiers (UUID v4) and lexicographically sortable identifiers (ULID) directly in your browser. Generate a single ID or up to 50 at once with bulk generation. No registration required.

UUID v4 vs ULID — What's the Difference?

UUID v4 — randomly generated, universally unique, widely supported across all databases and frameworks
ULID — timestamp-prefixed, sortable by creation time, URL-safe, and more readable than UUID

Common Use Cases

Database primary keys for new records
Unique session or transaction identifiers
File naming to avoid conflicts
API keys or token generation for testing
Tracking IDs for distributed systems

Secure and Private

All IDs are generated using the browser's built-in crypto.randomUUID() API — the same cryptographic source used by operating systems for secure random generation. No data is sent to any server.

About the UUID Generator

The Zadein UUID Generator creates universally unique identifiers (UUIDs) on demand. It generates version 4 UUIDs using random values, suitable for use as unique identifiers in databases, APIs, and distributed systems.

How to use

1Click Generate to produce a new UUID.
2Copy the UUID from the output field.
3Click Generate again to produce additional unique identifiers.

Common use cases

Generate a unique identifier for a new database record.
Create UUIDs for use as session tokens or request identifiers.
Produce unique IDs for items in a distributed system.
Generate test UUIDs for use in development or unit tests.

Frequently asked questions

Are the generated UUIDs truly unique?

Version 4 UUIDs are randomly generated and the probability of collision is astronomically low in practice, making them suitable for use as unique identifiers.

What version of UUID does this generate?

The tool generates version 4 UUIDs, which are based on random numbers. This is the most commonly used UUID version for general purposes.

Can I generate multiple UUIDs at once?

You can click Generate repeatedly to produce multiple UUIDs. Bulk generation options may be available depending on the tool.

UUID / ULID Generator

Generate universally unique identifiers (UUID v4) or Lexicographically Sortable Identifiers (ULID).

Processed locally. IDs generated using cryptographic randomness.

Type

Quantity: 1

Generated IDs (0)

Click Generate to create IDs