Is a GUID different from a UUID?

They use the same underlying format (a 128-bit value); GUID is simply Microsoft's name and traditional braces-and-uppercase formatting convention for it.

Is my generated GUID sent anywhere?

No — it is generated and displayed entirely in your browser.

Can I use a GUID as a UUID?

Yes — remove the braces and lowercase it (or use the dedicated UUID Generator) to get standard UUID formatting.

Can I generate more than 100 GUIDs at once?

The tool is capped at 100 per generation — run it again for more.

Are GUIDs case-sensitive?

No — GUIDs are typically treated case-insensitively by the systems that consume them, though uppercase is the traditional display convention.

Do I need braces for a SQL Server uniqueidentifier column?

SQL Server accepts GUID values with or without braces; check your specific tool or driver's expected format.

Идентификаторы и случайные значения

Генератор GUID — Бесплатный онлайн-инструмент

Генерируйте GUID в классическом формате с фигурными скобками и заглавными буквами.

Использовать этот инструмент

Работает в браузере
Мгновенные результаты
100% приватно

How many

Wrap in { braces } Uppercase

Узнать больше

What Is a GUID?

A GUID (Globally Unique Identifier) is Microsoft's name for the same concept as a UUID — a 128-bit value used as a unique identifier — traditionally written wrapped in curly braces and in uppercase, such as {3F2504E0-4F89-11D3-9A0C-0305E82C3301}, the format expected by many Windows and .NET APIs.

This tool generates the same underlying random 128-bit value as the UUID Generator, but defaults to the classic GUID formatting so it drops straight into a .NET project, a Windows registry key, or a COM component definition without needing manual reformatting.

Кто использует этот инструмент?

Для бизнеса

Generate a GUID for a new COM component or Windows registry entry.

Для личного использования

Generate a GUID for a personal .NET project.

Для студентов

Learn the difference between GUID and UUID formatting for a course.

Для офисов

Generate reference identifiers formatted for Windows-based systems.

Зачем использовать этот инструмент

Основные возможности

Classic GUID Formatting

Defaults to braces and uppercase, matching Windows/.NET conventions.

Bulk Generation

Generate up to 100 GUIDs at once.

Cryptographically Random

Uses your browser's Web Crypto API for true randomness.

100% Private

Generated entirely in your browser — nothing is transmitted.

Результат

Преимущества

Ready for Windows/.NET

Default formatting matches what Windows and .NET APIs expect.

No Collisions in Practice

Random GUIDs are effectively guaranteed to be unique.

Generate in Bulk

Create many GUIDs at once for seeding test data or components.

Пошагово

Как использовать Генератор GUID

Set Quantity & Format

Choose how many GUIDs and whether to include braces or uppercase.

Click Generate GUID

New random GUIDs appear instantly.

Copy the Result

Use the Copy button to grab all generated GUIDs.

Характеристики

Технические детали

Параметр	Значение
Ввод	Generated text output, no input required
Обработка	Up to 100 GUIDs per generation
Вывод	Version 4 (random) GUIDs using your browser's Web Crypto API

Это можно проверить

Конфиденциальность и безопасность

Что на самом деле происходит с вашим файлом при использовании этого инструмента.

100% Client-Side

This tool runs entirely inside your browser using JavaScript — nothing you type or generate is ever sent anywhere.

No Upload, Ever

There is no file upload and no server processing step — your data never leaves your device.

Works Offline

Once this page has loaded, the tool keeps working even without an internet connection.

Nothing Stored

Nothing you enter is saved on our servers — refreshing the page clears everything.

No Tracking of Your Input

We have no way to see what you type, generate or convert with this tool.

Как улучшить результат

Советы

Keep Braces for Registry Entries

Windows registry GUID keys typically expect the curly-brace format.

Drop Braces for Code Constants

Some .NET APIs accept a plain, unbraced GUID string — disable braces if so.

Часто задаваемые вопросы