UUID Generator
Generate v4 UUIDs in bulk with one click
About UUID Generator
How UUID Generator Works
Generates cryptographically secure version-4 universally unique identifiers compliant with IETF RFC 4122. Each 128-bit identifier is derived using the W3C Web Cryptography API (crypto.randomUUID()) with 122 bits of cryptographically strong entropy and zero server latency.
The UUID Generator creates universally unique identifiers, most commonly version 4 random UUIDs, in bulk with a single click. A typical use case is seeding database records, generating request IDs for tracing, or creating anonymous session keys without a backend. You can generate dozens at once and copy them all to the clipboard, which saves repetitive manual work. Because generation uses the browser's cryptography, the IDs are unpredictable and suitable for security-sensitive contexts. The tool is handy for engineers who need placeholder IDs in tests, fixtures, or migration scripts. Every UUID produced is statistically unique across systems, so collisions are effectively impossible in practice.
Frequently asked questions
Are the UUIDs truly random?+
Yes. They use the browser's secure random generator for v4 UUIDs.
Can I generate many at once?+
Yes, you can bulk-generate and copy a whole batch in one click.
Are they safe to use as keys?+
Yes, v4 UUIDs are unpredictable and fine for IDs and tokens.
Limitations
It generates v4 UUIDs only and does not support v1 time-based or v5 name-based variants. Output is text, not stored anywhere.