Bulk UUID Generator

A single UUID is trivial to generate anywhere, but a realistic test dataset, a seed script for a development database, or a batch of pre-allocated identifiers for an import job typically needs dozens or hundreds at once, and generating them one at a time through a single-value tool is a genuinely tedious way to assemble a list that size. Generating up to a thousand in one action and downloading them as a plain text file — one per line — turns what would be a repetitive manual task into a single copy-paste step directly into a seed script, a fixture file, or a spreadsheet column.

Generating many UUIDs in one batch does not trade away any of the collision resistance a single UUID has — each value in the list is drawn independently from the same cryptographically random source, with no relationship between one generated value and the next. A batch of a thousand is simply a thousand independent draws from the same enormous possibility space, not a thousand values that share any structure that could make them individually more predictable or more likely to collide with each other.

Seed scripts, fixture files and integration tests frequently need a supply of realistic-looking but entirely fake identifiers to populate test records with — a batch of a hundred or a thousand pre-generated UUIDs, pasted directly into a seed file or a spreadsheet column, is often faster than calling a UUID-generation function repeatedly inside the seeding script itself, particularly when the exact same fixed set of IDs needs to be reused consistently across multiple test runs.