UUID Generator

Generate RFC-4122 v4 (random) and v7 (time-ordered) UUIDs in bulk using Web Crypto API.

CRY

UUID Generator

developerNO SIGN-UPRFC-4122

Generate RFC-4122 v4 (random) and v7 (time-ordered) UUIDs in bulk using Web Crypto API.

0.05msAir-GappedWebCrypto

Configuration & Schema

UUID Specification

Batch Quantity5

12550100

Output Format Modifiers

Include Hyphens (8-4-4-4-12)Uppercase Hex (A-F)Wrap in Braces {...}

Envelope Encoding

Generated Identifiers (0)

Standard: RFC 4122 / RFC 9562Entropy: 122 bits Cryptographic

CSPRNG Guaranteed: Entropy is sourced strictly from the hardware-backed crypto.getRandomValues browser API. High-performance UUID v7 sorting eliminates database B-tree index fragmentation.

RAM-ONLY ENGINE•OUTBOUND HTTP REQUESTS: 0•ZERO TELEMETRY

NO CREDENTIALS REQUIRED

VERIFIABLE CLIENT-SIDE PRIVACY CONTRACT

INSPECT VIA BROWSER DEVTOOLS NETWORK TAB (0 BYTES TRANSMITTED)

Zero Sign-Up FrictionNo email, no phone verification, no password creation. Start working immediately.

Zero Cloud ExposureYour files, calculations, or tokens remain exclusively in your computer's active RAM.

Instant 0ms ResponsivenessNo AI queues, no rate-limiting, and no cloud processing delays.

HOW TO USE THE UUID GENERATORDIRECT WORKFLOW

GUIDE

Select the quantity of UUIDs you need (1, 5, 10, or 20).

Click "Regenerate" to create fresh random identifiers.

Copy individual UUIDs or click "Copy All" to copy the entire batch.

TECHNICAL SPECIFICATIONS & PERFORMANCEENGINE TELEMETRY

VERIFIED

EXECUTION SPEED:0.05ms (Instant local)

SECURITY LEVEL:Air-Gapped

NATIVE SUBSYSTEM:WebCrypto

Strict compliance with RFC-4122 specification.

Batch generation with zero network lag.

FREQUENTLY ASKED QUESTIONSPRIVACY & PROTOCOL SPECS

FAQ

What are the odds of two UUID v4 values colliding?

The probability of generating a duplicate UUID v4 is approximately 1 in 2.71 × 10^18, making collisions practically impossible in real-world systems.

RELATED DEVELOPER UTILITIESEXPLORE COMPLEMENTARY TOOLS

developer0.4ms

JSON Formatter

Pretty-print, clean, indent, and format messy JSON strings with instant syntax highlighting.

OPEN UTILITY

developer0.3ms

JSON Validator

Deep structural validation with exact line/column error diagnostics and repair hints.

OPEN UTILITY

developer0.2ms

Base64 Encoder

Safely encode UTF-8 text strings or binary assets into base64 data URIs.

OPEN UTILITY