Identifier Utility
UUID Generator
Generate RFC-compliant UUID v4 values for records, queues, API resources, and traceable events.
Generated UUIDs
RFC 4122 version 4 format
What is a UUID v4?
A UUID is a 128-bit identifier designed to be unique across systems. Version 4 UUIDs are randomly generated, making them useful for database primary keys, distributed workers, public IDs, and object storage references.
Seed new records
Create IDs before inserts when your app needs client-side object creation or offline queues.
Avoid collisions
Generate large batches for distributed jobs without depending on a central sequence service.
Copy fast
Use per-row copy buttons or copy the entire batch for fixtures, docs, or migrations.
UUID Generator FAQ
Are these UUIDs compliant with RFC 4122?
Yes. The generator sets the version and variant bits required for UUID v4 values.
Can I generate multiple UUIDs at once?
Yes. Enter a count and the tool will render a batch list you can copy individually or all at once.
Why use UUIDs instead of auto-increment IDs?
UUIDs work well when IDs must be created across services or exposed publicly without revealing sequence volume.
Tool Snapshot
UUID Generator in Context
Use the UUID Generator when a workflow needs unique identifiers before insert time, across systems, or inside reusable test fixtures.
The browser can generate compliant UUID v4 values quickly, which removes the need for ad hoc helper scripts when the job is simply producing clean identifiers.
Browser-native randomness
The generator uses browser cryptography APIs so generated IDs are not based on predictable counters.
Batch-friendly output
Multiple UUIDs can be generated and copied quickly for fixtures, import jobs, and operational test data.
Common Jobs
- Preparing seed data and integration fixtures.
- Creating IDs for jobs, queues, and public API resources.
- Generating safe stand-in identifiers for support reproductions.
Internal Links
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