UUID generator
Generate UUID v4 in your browser. One or many, one-click copy. No network request for the ID itself.
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UUID v4 · crypto.randomUUID · Nothing is sent to a server
Dev tip
Common for DB PKs, filenames, and request IDs. Avoid concatenating PII into the same log field.
FAQ
What is UUID v4?
A 128-bit random id with version=4 and RFC variant bits. Collision risk is negligible for normal use.
Need time-sortable ids?
v4 is not ordered. Consider ULID/UUIDv7 elsewhere; this tool is v4 only.