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Utility Suite

UUID Generator & Parser

Generate cryptographically secure v1, v4, v7, v3, or v5 UUIDs in bulk, or inspect and decode existing UUIDs with precision.

Generated Batch

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Press Cmd + Enter to regenerate

Client-Side Only

Your data never leaves your browser. Parsing and generation happen locally for absolute privacy.

High Performance

Handle thousands of records effortlessly. Validate and sort in milliseconds with zero lag.

Smart Export

Format output as CSV, JSON, SQL, or flat lists — perfect for seeding, debugging, or audits.

FAQ

What is the difference between UUID v4 and UUID v7?

UUID v4 is purely random (122 random bits), offering maximum unpredictability. UUID v7 combines a 48-bit Unix timestamp with random bits, making it time-ordered and vastly more efficient for database primary keys.

Are the generated UUIDs cryptographically secure?

Yes. Random bits in v4, v7, and v1 use window.crypto.getRandomValues(), a browser CSPRNG implementation.

What are name-based UUIDs (v3 and v5)?

UUID v3 (MD5) and v5 (SHA-1) generate deterministic UUIDs from a Namespace UUID and input string. The same namespace and name always yield the same output.

What is a NIL UUID?

A NIL UUID has all 128 bits set to zero (00000000-0000-0000-0000-000000000000), often used as a placeholder or default value.

Does any of my data get sent to a server?

No. All generation and parsing runs 100% client-side. Your keys and input strings never leave your machine.