Professional UUID & GUID Generator - Free Online Tool

Generate RFC 4122 compliant UUIDs and GUIDs online for free with our professional UUID generator. Our tool supports multiple versions including UUID v1 (time-based), UUID v4 (random), and UUID v7 (sortable). Generate random UUIDs instantly, validate existing UUIDs, parse UUID structure, and convert between formats. Perfect for developers who need to generate UUID online quickly and reliably.

✨ Features: Bulk generation up to 10,000 UUIDs • UUID validator • GUID converter • QR code generator • Zero data upload - 100% client-side processing

Select UUID Version

Advanced Options

Namespace

Custom Namespace UUID

Name

Generated UUID

Bulk Generation

Count (1-1000)

Version

Generating...

Use Case:

Sortable:

QR Code

Recent UUIDs

No UUIDs generated yet

Collections

No collections yet

Validate UUID

Enter UUID to validate

Batch Validation

Enter UUIDs (one per line)

Results:

Validation Rules

Format

8-4-4-4-12 hexadecimal characters

Version

Must be 1, 2, 3, 4, or 5

Variant

Must be RFC 4122 compliant (8, 9, a, or b)

Length

Exactly 36 characters including hyphens

Statistics

Total Validated

Parse UUID

Enter UUID to parse

Basic Information

Version

Variant

Is Nil UUID

Is Max UUID

Timestamp Information

ISO 8601

Unix Timestamp (ms)

Human Readable

UUID Structure

Time Low

Time Mid

Time Hi & Version

Clock Seq & Variant

Node

Representations

Hexadecimal (no hyphens)

Byte Array

Parsing Error

About Parser

The UUID parser extracts and displays detailed information from any valid UUID.

✓ Version detection

✓ Variant identification

✓ Timestamp extraction (v1, v7)

✓ Structure breakdown

✓ Binary representations

Quick Actions

Convert UUID

Enter UUID to convert

Standard Formats

Standard (lowercase)

Uppercase

No Hyphens (lowercase)

No Hyphens (uppercase)

Bracketed Formats

Braces (lowercase)

Braces (uppercase)

URN Format

Encoded Formats

Base64

Hexadecimal (0x prefix)

Hex Array

Binary

Language-Specific Formats

C# / .NET

Java

Python

JavaScript / TypeScript

SQL

PostgreSQL

Conversion Error

Please enter a valid UUID to convert.

About Converter

Transform UUIDs into 15+ different formats for various programming languages and use cases.

✓ Standard formats

✓ Bracketed variants

✓ Base64 & Hex encoding

✓ Language-specific code

✓ One-click copy

Quick Actions

Format Count

15+

Available Formats

No History Yet

Generated UUIDs with auto-save enabled will appear here

No Results Found

No UUIDs match your search ""

No Favorites Yet

Star UUIDs to mark them as favorites

Showing of items (filtered from total)

Showing of items

Statistics

Total Saved

Favorites

Actions

Popular Tags

No Tags Yet

Add tags when editing history items

Import UUIDs

Drop file here or click to browse Release to upload!

Supports JSON, CSV, TXT, XML, YAML

Choose File

Or paste UUIDs (one per line)

Import Results

Total UUIDs:

Valid:

Invalid:

Added to History:

🌐 Import from URL

Supports JSON files or plain text with UUIDs

Export UUIDs

Export Source

Export Format

Include metadata (timestamps, tags, notes)

Preview

Supported Formats

✓ JSON: Full metadata support

✓ CSV: Spreadsheet-ready format

✓ TXT: Plain text, one per line

✓ SQL: INSERT statements

✓ XML: Structured data

✓ YAML: Human-readable config

🌐 Browser Compatibility

Browser Status

Feature Support:

Local Storage

Clipboard API

Web Crypto API

Fetch API

Web Workers

Compatibility Warnings:

All features fully supported in your browser!

No Analytics Data

Generate and save UUIDs to see detailed analytics and insights

Total UUIDs

All time

Favorites

Starred items

This Week

Last 7 days

Most Used

UUID version

Version Distribution

Generation Over Time

Daily Count

Last 30 days

Activity by Day of Week

Most active on

Top Tags

Detailed Statistics

Average per Day

Busiest Day

Unique Tags

Export Analytics Report

Download a comprehensive analytics report in JSON format

Appearance

Theme

Auto Dark Mode

Automatically switch theme based on system preference

System preference detected: Dark mode

System preference detected: Light mode

Generator Preferences

Default UUID Version

This version will be selected by default when you open the app

Auto-copy on Generate

Automatically copy UUID to clipboard after generation

Auto-save to History

Automatically save generated UUIDs to history

Show QR Code

Display QR code with generated UUIDs

Date & Time Format

Date Format

Choose how dates are displayed in history. Format hints are shown next to dates.

Time Format

Choose between 12-hour or 24-hour time display

Preview:

History & Data

Maximum History Items

Limit the number of items stored in history

Auto-cleanup Old Items

Automatically remove items older than 30 days

Data Management

About UUID Studio Pro

Version: 1.0.0

Built with: Alpine.js, Tailwind CSS, Chart.js

Features: 8 UUID types, QR codes, Analytics, Import/Export

An enterprise-grade UUID generation and management platform with advanced features for developers and teams.

About UUID Studio Pro

Your privacy and security are our top priorities. Learn how we protect your data.

Privacy-First Architecture

Built with your security in mind. Every tool runs locally in your browser.

100% Client-Side

All data stays on your device; nothing touches our servers.

Zero Data Storage

No logs, no tracking, no collection — ever.

Lightning Fast

Instant results, since there are no server round-trips.

Data Never Leaves

Your device only. Guaranteed protection for your sensitive data.

100% client-side, zero data uploads. Your data never leaves your device — guaranteed.

Why Choose UUID Studio Pro?

No Backend Required

All UUID generation, validation, parsing, and conversion happens in your browser using JavaScript. No server processing means your data stays with you.

Works Offline

Once loaded, UUID Studio Pro works completely offline. Generate, validate, and manage UUIDs without an internet connection.

Open Source Transparency

Built with popular open-source libraries (Alpine.js, Tailwind CSS, Chart.js). You can inspect all the code that processes your data.

Enterprise-Grade Features

Support for 10 UUID types, bulk operations, analytics, import/export in 6 formats, and advanced validation — all while maintaining complete privacy.

Technical Specifications

Version: 1.0.0

Built with: Alpine.js 3.x, Tailwind CSS 3.x, Chart.js 4.x

UUID Support: v1, v3, v4, v5, v6, v7, ULID, Nil, Max, GUID

Export Formats: JSON, CSV, TXT, SQL, XML, YAML

Accessibility: WCAG 2.1 AA compliant, screen reader support, keyboard navigation

Browser Storage: localStorage only (no cookies, no external tracking)

ZeroDataUpload.com

UUID.ZeroDataUpload.com

Privacy-first web utilities. Your data never leaves your device.

Built with transparency and security at the core.

Enterprise Edition – High-precision time platform for professionals.

Legal

Company

Support

📧 Contact Us