UUID Generator Online
Fast and secure UUID generator online. Create cryptographically strong GUIDs for your projects instantly.
Built With Care
“A UUID (Universally Unique Identifier) is a 128-bit number used to identify information in computer systems. Standardized by RFC 4122, the probability of a duplicate UUID being generated is so widely improbable that it can be considered impossible for all practical purposes, making them ideal for database keys in distributed systems.”
UUID Generator
Generate standards-compliant UUIDs (Universally Unique Identifiers) instantly. Axonix provides a fast, free, and secure v4 UUID generator for developers, databasing, and testing.
- 1Choose the number of UUIDs you want to generate (up to 100 per batch).
- 2Click the 'Generate Batch' button to create new unique identifiers.
- 3Each UUID is generated using cryptographically secure random numbers (v4).
- 4Click the copy icon next to any single UUID to save it.
- 5Use the 'Copy All' button to save the entire list to your clipboard at once.
- Standards Compliant: Generates valid RFC 4122 Version 4 UUIDs.
- Batch Generation: Create up to 100 identifiers in a single click.
- Crypto-Secure: Uses the `crypto.randomUUID()` API for true randomness.
- GUID Compatible: Fully compatible with Microsoft GUID formats.
- Zero Latency: Runs instantly in your browser with no server round-trips.
Real Ways People Use This
Database Primary Keys
Use UUIDs as primary keys in your SQL or NoSQL databases to avoid collision issues when merging data from different servers.
Session Tokens
Generate unique, non-guessable session IDs for tracking user logins or shopping carts in your web application.
Software Licensing
Create unique license keys or serial numbers for your software distribution to track individual installs.
Testing & Mocks
Generate a batch of 100 UUIDs to populate your mock data or seed your testing environment.
- UUIDs are unique identifiers, not access tokens or security secrets.
- For database usage, choose a consistent format and casing policy to avoid comparison issues.
- Random UUIDs can fragment ordered indexes; some systems prefer time-ordered IDs for hot tables.
- 1Generate required batch size for your seed/test/record creation workflow.
- 2Validate format compatibility with your language/framework/database constraints.
- 3Copy/store IDs immediately with clear mapping to target entities.