UUID Generator

What is a UUID Generator?

A UUID (Universally Unique Identifier) is a 128-bit identifier standardized by RFC 4122. It's written as 32 hexadecimal digits in five groups separated by hyphens — for example, 550e8400-e29b-41d4-a716-446655440000. UUIDs are designed to be unique across space and time without requiring a central registration authority.

Why use Deepchill's UUID Generator?

Deepchill's UUID generator runs entirely in your browser using the Web Crypto API for true cryptographic randomness. There's no server, no ads, no tracking, and no rate limits. Generate up to 1,000 UUIDs instantly, switch between v1/v4/v7 formats, export to JSON/CSV/TXT, and share settings via URL — all in a single fast page load.

Common Use Cases

• Database primary keys: Use UUID v4 for distributed systems without a central ID generator, or UUID v7 for naturally ordered inserts in MySQL/PostgreSQL.
• Session & token IDs: Generate cryptographically random UUIDs for user session tokens, CSRF tokens, or one-time codes.
• File naming: Avoid naming collisions in storage systems (S3, GCS) by prefixing uploads with UUIDs.
• Test data generation: Quickly generate hundreds of unique UUIDs for seeding test databases or fixtures.
• Microservices correlation IDs: Tag distributed traces and log entries with UUIDs to correlate requests across services.
• Event sourcing: Assign stable, globally unique IDs to domain events in event-driven architectures.

Example

Example output (3 × UUID v4)

Version: v4
Count: 3
Format: newline

f47ac10b-58cc-4372-a567-0e02b2c3d479
9b1deb4d-3b7d-4bad-9bdd-2b0d7b3dcb6d
1b9d6bcd-bbfd-4b2d-9b5d-ab8dfbbd4bed