Generate RFC 4122 version 4 UUIDs in bulk, instantly.
Uses crypto.randomUUID() in your browser.
Create cryptographically strong version 4 UUIDs for database keys, correlation IDs, and testing fixtures — entirely in your browser.
Version 4 (random) via crypto.randomUUID() in supporting browsers.
Collisions are astronomically unlikely for v4 UUIDs in normal use.
Beautify or minify JSON with clear validation errors.
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