UUID Generator Online: Generate v4, v1, and v7 UUIDs Instantly Free

UUID Generator Online: Generate v4, v1, and v7 UUIDs Instantly Free UUIDs (Universally Unique Identifiers) are the standard way to generate unique IDs without a central authority. Whether you're seeding a database, testing an API, or generating session tokens, an online UUID generator gives you ready-to-use identifiers in seconds. This guide covers the UUID versions, when to use each, and how to generate them in code. What Is a UUID? A UUID is a 128-bit identifier formatted as a 36-character string: xxxxxxxx-xxxx-Mxxx-Nxxx-xxxxxxxxxxxx Example: f47ac10b-58cc-4372-a567-0e02b2c3d479 32 hexadecimal digits 4 hyphens separating 5 groups (8-4-4-4-12 characters) The M position indicates the version; N indicates the variant Try it now: DevPlaybook UUID Generator — generate single or bulk UUIDs in any version instantly. UUID Versions Explained UUID v4 (Random) — Most Common UUID v4 uses 122 random bits. The probability of generating two identical UUIDs is astronomically low — roughly 1 in 5.3 ×