Generate UUIDs v1, v4, and v5 instantly. Bulk generate up to 100 at once. UUID validator included. History tracking with localStorage.
v1, v4, v5Bulk (100)Validator
Generate UUIDs
UUID Validator
UUID Versions
v1: Timestamp-based
Uses date, time, and MAC
v4: Random
Cryptographically random
Format:
xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx
Use Cases
• Database IDs
• API tokens
• Request tracking
• Device identifiers
• Session IDs
Frequently Asked Questions
What UUID versions are supported?
AfroTools UUID Generator supports UUID v1 (timestamp-based, using the current date/time and a random node ID) and UUID v4 (randomly generated using cryptographic randomness). UUID v4 is the most commonly used version for general purposes.
Are the generated UUIDs truly random?
UUID v4 values are generated using Math.random() in your browser. For most use cases like database IDs, testing, and prototyping, this provides sufficient randomness. For cryptographic security requirements, use a dedicated library with crypto.getRandomValues().
Can I generate UUIDs in bulk?
Yes. You can generate up to 100 UUIDs at once by setting the count field. All generated UUIDs are displayed in a list with individual copy buttons, plus a Copy All button to grab them all at once separated by newlines.
Is the UUID generator free to use?
Yes, completely free with no limits, no sign-up, and no ads. You can generate as many UUIDs as you need. The tool also includes a UUID validator to check if a string is a valid UUID and identify its version.