UUID Generator
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Results
Click Generate.
v4 or v7?
v4 is random: no correlation between two UUIDs. Ideal for most cases (resource IDs, primary keys).
v7 embeds a millisecond timestamp at the start, making it sortable by date. Perfect for DB index keys or avoiding index fragmentation.
Fully local
Generation uses your browser's crypto.getRandomValues. No network request, UUIDs stay with you.