UUID-Generator

Kostenloses Online-Tool 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.

Was ist UUID-Generator?

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.

Formel

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

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

Total combinations: ~5.3 × 10^36

Berechnung

Enter your input in the field above.
Configure any available options to customize the output.
View the results instantly with real-time updates.
Copy or export your results for use in your projects.

Beispiel

generiert 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.

Hauptvorteile

Get accurate results instantly in your browser.
Save time with real-time calculations as you type.
No data leaves your device - complete privacy.
Free to use on any device, no sign-up required.

Häufige Fehler vermeiden

Verwendung sequenzieller IDs anstelle von UUIDs für verteilte Systeme
Assuming UUIDs are sortable by time (Verwendung UUID v7 for time-sortable)
Speichern von UUIDs als Strings statt Binary für die Leistung

Professionelle Tipps

Verwendung UUID v4 for general-purpose unique IDs
Speichern Sie UUIDs als binary(16) in Datenbanken für bessere Leistung
Verwendung UUID v7 if time-ordered sorting is needed
Never generieren UUIDs client-side for security-critical applications

Wichtige Begriffe erklärt

UUID: Universally Unique Identifier
UUID v4: zufällig version 4 UUID
GUID: Microsoft-Begriff für UUID
RFC 4122: UUID-Standardisierungsdokument

Häufige Anwendungsfälle

Datenbank-Primärschlüssel für verteilte Systeme
API-Ressourcenkennungen
User session Tokens
Bestell- und Transaktions-IDs

Häufig gestellte Fragen

Was ist a UUID?

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

Wie einzigartig sind UUIDs?

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

What are UUIDs Verwendungd for?

UUIDs are used as Datenbase primary keys, API resource identifiers, session Tokens, transaction IDs, and anywhere unique identifiers are needed without a central authority.

Was ist the difference between UUID and GUID?

GUID (Globally Unique Identifier) ist Microsofts Implementierung des UUID-Standards. Sie sind funktional identisch und austauschbar.

UUID-Generator

Was ist UUID-Generator?

Formel

Berechnung

Beispiel

Hauptvorteile

Häufige Fehler vermeiden

Professionelle Tipps

Wichtige Begriffe erklärt

Häufige Anwendungsfälle

Häufig gestellte Fragen

Verwandte Tools

UUID-Generator

Was ist UUID-Generator?

Formel

Berechnung

Beispiel

Hauptvorteile

Häufige Fehler vermeiden

Professionelle Tipps

Wichtige Begriffe erklärt

Häufige Anwendungsfälle

Häufig gestellte Fragen

Verwandte Tools