Security & Encoding
Security Tools Browser Only

Free UUID Generator Online

Generate UUID v4 and v7 identifiers in bulk. Copy as list, JSON array, or SQL values. 100% browser-based.

Fully random — 122 bits of randomness

10 UUIDs
1100
10 UUIDs · V4 · LIST
bc12c5ac-a5b2-4376-a101-a1c304d2c392
1360e91a-5b89-40f5-8862-2cf9d35ba183
c246ec20-e971-44d7-9caa-00a7d043b9d5
aa5cb1bb-f52f-47e9-9478-35b05aa48b0a
f1016a85-fb88-4f34-ba23-62466d9cee75
96fc8526-433a-4beb-b123-8b500c73ccfd
57fc54e0-9763-426c-a503-f0d7a6e8391d
e6d8814e-a853-4962-87b5-a7caad3ce719
d9a1789a-ded4-4356-9d44-d84e79650848
73fd9774-a7d8-4902-a673-d7ea1aaacc81
UUIDs generated using crypto.randomUUID() and crypto.getRandomValues(). No server involved.

RFC 4122 Compliant

UUID v4 uses crypto.randomUUID() per the spec. v7 is the new time-sortable standard.

Bulk Generation

Generate up to 100 UUIDs at once. Export as plain list, JSON array, or SQL VALUES.

Instant & Free

No sign-up, no limits. Regenerate as many times as needed.

How to Use

  1. 1

    Choose UUID version

    Select v4 (fully random) or v7 (time-sortable, recommended for database primary keys).

  2. 2

    Set quantity

    Enter how many UUIDs to generate, from 1 to 100.

  3. 3

    Choose output format

    Select List (one per line), JSON array, or SQL VALUES format.

  4. 4

    Click Generate

    UUIDs are generated instantly using the browser's crypto API.

  5. 5

    Copy all

    Click the copy button to copy all generated UUIDs to your clipboard.

Frequently Asked Questions

Is the UUID generator free?+
Yes, completely free with no sign-up and no limits on how many UUIDs you generate.
What is the difference between UUID v4 and v7?+
UUID v4 is fully random — great for general use. UUID v7 embeds a Unix timestamp in the first 48 bits, making them monotonically sortable by creation time. v7 is better for database primary keys because sequential IDs reduce index fragmentation.
Are these UUIDs truly unique?+
UUID v4 uses 122 bits of randomness, giving approximately 5.3×10³⁶ possible values. The probability of two random UUIDs being identical is astronomically small — for practical purposes, they are guaranteed unique.

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