Are UUID v4 values truly unique?

While not guaranteed, the probability of collision is astronomically low (1 in 2^122).

How many UUIDs can I generate at once?

Up to 10,000 UUIDs in a single batch.

UUID Generator

Generate universally unique identifiers (UUIDs) instantly. Supports v1 (time-based) and v4 (random). Bulk generate up to 10,000 UUIDs and export as TXT or CSV.

UUID v1 (time-based)UUID v4 (random)Bulk generationQuantity up to 10,000Copy single UUIDCopy all UUIDsDownload as TXTDownload as CSV

100% Privacy

Files stay strictly on your device. Zero server uploads.

Instant Speed

Local browser WebAssembly & JS processing engine.

Free Forever

Unlimited usage with no hidden fees or watermarks.

How to Generate a UUID

Select Version

Choose UUID v1 or v4.

Set Quantity

Choose how many UUIDs to generate (1 to 10,000).

Generate

Click generate to create your UUIDs.

Copy or Download

Copy individual UUIDs or download all as TXT/CSV.

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Frequently Asked Questions

UUID v1 is time-based and includes the timestamp. UUID v4 is randomly generated.

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