Wichtige Entwickler-Werkzeuge
Schnelle, sichere Browser-Tools zum Formatieren von JSON, Kodieren von URLs, Base64-Konvertierung, HTML-Entities und UUID-Erzeugung.
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UUID-Generator
RFC 4122-konforme Version 4 UUIDs lokal im Browser erzeugen
SPECIFICATION
RFC 4122 v4 UUID Generation
Features and customization options for unique identifier generation.
Bulk Generation
Generate up to 100 unique identifiers at once, separated cleanly line by line for database seeds, mock data, and test environments.
Case & Hyphen Options
Toggle between lowercase and uppercase characters, with or without hyphens, or wrapped in standard curly braces {...}.
Cryptographically Strong
Powered by native browser hardware-backed randomness (Web Crypto API) ensuring unmatched uniqueness and zero server logging.
FAQ
UUID Generator Questions
What is a Version 4 UUID?
A Version 4 Universally Unique Identifier (UUID) is a 128-bit label generated using cryptographically secure pseudorandom numbers. The probability of generating two identical v4 UUIDs is practically zero (1 in 2^122).
How are UUIDs generated in this tool?
This tool uses the browser's native Web Cryptography API via crypto.randomUUID(), providing high-entropy, cryptographically strong random bits directly on your device.
What is the difference between a UUID and a GUID?
GUID (Globally Unique Identifier) is Microsoft's implementation of the UUID standard. In practice, GUID and UUID are synonymous terms referring to 128-bit unique identifiers formatted as 8-4-4-4-12 hexadecimal digits.
Can I generate multiple UUIDs at once?
Yes. You can select to generate 1, 5, 10, 25, 50, or 100 UUIDs in a single click and copy or download them as a text file.
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