UUID Generator

Generate universally unique identifiers (UUIDs) instantly. Supports v1 (time-based) and v4 (random). Bulk generate up to 10,000 UUIDs and export as TXT or CSV.

UUID v1 (time-based)UUID v4 (random)Bulk generationQuantity up to 10,000Copy single UUIDCopy all UUIDsDownload as TXTDownload as CSV

Read the Complete Guide

UUID v1 vs. v4 and Bulk Generation

100% Privacy

Files stay strictly on your device. Zero server uploads.

Instant Speed

Local browser WebAssembly & JS processing engine.

Free Forever

Unlimited usage with no hidden fees or watermarks.

Learn how we handle your data →

How to Generate a UUID

Select Version

Choose UUID v1 or v4.

Set Quantity

Choose how many UUIDs to generate (1 to 10,000).

Generate

Click generate to create your UUIDs.

Copy or Download

Copy individual UUIDs or download all as TXT/CSV.

Start using UUID Generator now – it’s completely free and works instantly in your browser.

Frequently Asked Questions

What is the difference between UUID v1 and v4?

UUID v1 is time-based and includes the timestamp. UUID v4 is randomly generated.

Are UUID v4 values truly unique?

While not guaranteed, the probability of collision is astronomically low (1 in 2^122).

How many UUIDs can I generate at once?

Up to 10,000 UUIDs in a single batch.

Related Tools

Password Generator

Generate strong, secure passwords with customizable options. Set length, include/exclude character types, view strength meter and entropy score.

JSON Formatter

Beautify, minify, and validate your JSON data instantly. Browser-based, with file upload and download support.

QR Code Generator

Generate custom QR codes for URLs, text, phone, email, SMS, WiFi, vCard, WhatsApp, and location. Customize colors, add logos, download as PNG or SVG.