DEVELOPMENT & DATA
Generate unique UUID v4 identifiers using the browser cryptographic API, without relying on servers.
LOCAL TOOL
Choose how many UUIDs you need and click Generate. Copy them and use them as identifiers in databases, messages or tests.
UUID v4 values are random 128-bit values with a negligible collision probability for most practical uses.
FREQUENTLY ASKED QUESTIONS
They are generated with the browser cryptographic API, suitable for secure identifiers.
You can generate several at once to populate lists or fixtures.