🧬 UUID Generator (v1 / v4 / v5)
A universal UUID generator supporting v1, v4, and v5 with namespace and name. Ideal for databases, APIs, configs, and more.
What is a UUID and why is it useful?
UUID (Universally Unique Identifier) is a 128-bit unique identifier used in systems where ID duplication must be avoided — such as databases, APIs, microservices, blockchains, session management, and more.
- UUID v1: Based on timestamp and MAC address (reveals creation time);
- UUID v4: Most common — randomly generated;
- UUID v5: Deterministic — created using namespace and name hashed with SHA-1 (same input = same UUID).
With Bit.Hosting’s free UUID generator, you can create all types of UUIDs online — fast, secure, and without limitations or installs.