UUID Generator

About UUID v4

A UUID (Universally Unique Identifier) is a 128-bit identifier formatted as 32 hexadecimal digits in the pattern xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx. UUID v4 values are randomly generated, making collisions astronomically unlikely.

Common Use Cases

• Database primary keys — avoid sequential IDs that leak row counts.

• Distributed systems — generate IDs without coordination between services.

• File naming — create unique filenames for uploaded assets.

• Request tracing — attach a UUID to each request for log correlation.

API Example

## Generate UUID with curl
curl -X POST https://apitoolkit.pro/api/v1/uuid \
  -H "X-Api-Key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{}'

## JavaScript
const res = await fetch('https://apitoolkit.pro/api/v1/uuid', {
  method: 'POST',
  headers: { 'X-Api-Key': 'YOUR_API_KEY', 'Content-Type': 'application/json' },
  body: '{}'
});
const { result } = await res.json();
console.log(result); // "550e8400-e29b-41d4-a716-446655440000"

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