Generator UUID

Alat online gratis generate uuids instantly. free online uuid generator supports uuid v4 (random), uuid v7 (time-ordered), and bulk generation. copy with one click. no sign-up needed.

Apa itu Generator UUID?

A powerful developer tool designed to help you work more efficiently. UUID Generator provides accurate results instantly with a clean, intuitive interface. Perfect for developers, engineers, and IT professionals.

Rumus

UUID v4 format: xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx

Where x is a acak hex digit and y is one of 8, 9, A, or B (RFC 4122 variant).

Total combinations: ~5.3 × 10^36

Cara Menghitung

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Configure any available options to customize the output.
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Copy or export your results for use in your projects.

Contoh

dihasilkan UUID: 550e8400-e29b-41d4-a716-446655440000 — a standard v4 UUID with the 4 in position 13 indicating version 4, and "a" in position 17 indicating the RFC 4122 variant.

Manfaat Utama

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Save time with real-time calculations as you type.
No data leaves your device - complete privacy.
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Kesalahan Umum yang Harus Dihindari

Menggunakan ID berurutan alih-alih UUID untuk sistem terdistribusi
Assuming UUIDs are sortable by time (penggunaan UUID v7 for time-sortable)
Menyimpan UUID sebagai string alih-alih binary untuk kinerja

Tips Profesional

penggunaan UUID v4 for general-purpose unique IDs
Simpan UUID sebagai binary(16) di database untuk kinerja
penggunaan UUID v7 if time-ordered sorting is needed
Never menghasilkan UUIDs client-side for security-critical applications

Istilah Kunci Dijelaskan

UUID: Pengidentifikasi Unik Universal
UUID v4: acak version 4 UUID
GUID: Istilah Microsoft untuk UUID
RFC 4122: Dokumen standarisasi UUID

Kasus Penggunaan Umum

Kunci utama database untuk sistem terdistribusi
Pengidentifikasi sumber daya API
penggunaanr session token
ID pesanan dan transaksi

Pertanyaan Umum

Apa itu a UUID?

UUID (Universally Unique Identifier) is a 128-bit identifier standardized by RFC 4122. Version 4 UUIDs are acakly dihasilkan and practically guaranteed to be unique across systems.

Seberapa unik UUID?

Extremely unique. There are 5.3×10^36 possible v4 UUIDs. The probability of collision is so low that Anda could menghasilkan 1 billion UUIDs per second for 100 years and still have near-zero collision risk.

What are UUIDs penggunaand for?

UUIDs are penggunaand as database primary keys, API resource identifiers, session token, transaction IDs, and anywhere unique identifiers are needed without a central authority.

Apa itu the difference between UUID and GUID?

GUID (Globally Unique Identifier) adalah implementasi Microsoft dari standar UUID. Keduanya secara fungsional identik dan dapat dipertukarkan.

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