UUID Generator

Generate UUIDs, ULIDs, and Nano IDs in bulk.

GET 1 credit /v1/uuid

curl "https://devtools.toolkitapi.io/v1/uuid?version=v4&count=3"

import httpx

resp = httpx.get(
    "https://devtools.toolkitapi.io/v1/uuid?version=v4&count=3",
)
print(resp.json())

const resp = await fetch("https://devtools.toolkitapi.io/v1/uuid?version=v4&count=3", {
});
const data = await resp.json();
console.log(data);

# See curl example

Response 200 OK

{
  "version": "v4",
  "count": 3,
  "ids": [
    "f47ac10b-58cc-4372-a567-0e02b2c3d479",
    "7c9e6679-7425-40de-944b-e07fc1f90ae7",
    "550e8400-e29b-41d4-a716-446655440000"
  ]
}

Try It Live

Description

Generate UUIDs, ULIDs, and Nano IDs in bulk.

How to Use

1

1. Send a GET request with the `version` parameter to choose the ID type.

2

2. Optionally set `count` to generate multiple IDs in a single request (up to 100).

3

3. The response contains an `ids` array with all generated identifiers.

About This Tool

UUID Generator creates universally unique identifiers in multiple formats: UUID v4 (random), UUID v7 (time-ordered, RFC 9562), ULID (Crockford's Base32 time-ordered), and Nano ID (URL-safe compact). Generate up to 100 IDs per request.

Why Use This Tool

Database primary keys — Generate unique IDs for new records
Distributed systems — Create collision-free identifiers across services
Time-ordered IDs — Use v7 or ULID for sortable, time-based identifiers
URL-safe tokens — Use Nano ID for compact, URL-friendly identifiers

Frequently Asked Questions

What is the difference between v4 and v7?

UUID v4 is fully random. UUID v7 (RFC 9562) embeds a millisecond timestamp in the first 48 bits, making IDs naturally sortable by creation time while remaining unique.

What is a ULID?

ULID (Universally Unique Lexicographically Sortable Identifier) is a 26-character Crockford's Base32 encoded ID with 48-bit timestamp + 80-bit randomness.

What is a Nano ID?

Nano ID is a compact 21-character URL-safe identifier using alphanumeric characters plus `_` and `-`.

Start using UUID Generator now

Get your free API key and make your first request in under a minute.

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