UUID Generator

NARVIKHUB

Tools

▼

Blog

▼

Home

Tools

UUID Generator

Generate universally unique identifiers (UUIDs) - all versions supported.

UUID Version

UUID v1 (Time-based)

Based on timestamp and MAC address

UUID v3 (Name-based MD5)

Deterministic UUID from namespace and name using MD5

UUID v4 (Random)

Random or pseudo-random UUID (most common)

UUID v5 (Name-based SHA-1)

Deterministic UUID from namespace and name using SHA-1

Uppercase

UUID Version Comparison:

v1: Time-based, includes MAC address (privacy concern)

v3: Name-based using MD5 hash (deterministic)

v4: Random, most commonly used (122 bits randomness)

v5: Name-based using SHA-1 hash (deterministic, preferred over v3)

NarvikHub

Free online developer tools and utilities for encoding, formatting, generating, and analyzing data. No registration required - all tools work directly in your browser.

Built for developers, by developers. Privacy-focused and open source.

Blog Articles

Base64 Encoding Guide URL Encoding Deep Dive Understanding JWT Tokens Regular Expressions Guide View All Articles →

Developer Tools & Utilities

Base64 Encoder/Decoder JSON Formatter URL Encoder/Decoder HTML Formatter Hash Generator UUID Generator QR Code Generator JWT Decoder Timestamp Converter Regex Tester Text Diff Checker Hex Converter Image Base64 Converter ASN.1 Decoder Charles Keygen

Free online tools for Base64 encoding, JSON formatting, URL encoding, hash generation, UUID creation, QR codes, JWT decoding, timestamp conversion, regex testing, and more.

NarvikHub

Popular Tools

Blog Articles

Developer Tools & Utilities