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MyUUIDshop, Generate UUIDs and never worry about duplicates

MyUUIDshop, Generate UUIDs and never worry about duplicates

by scrygl·May 19, 2026·5 points·7 comments

AI Analysis

Mid

Centralized UUID verification solves a statistical non-problem with expensive infrastructure.

Strengths
  • Guarantees zero collisions by storing and checking every single generated identifier.
Weaknesses
  • UUIDv4 collision risk is negligible; centralizing this adds latency and a single point of failure.
  • Contradicts the entire purpose of UUIDs, which are designed to be unique without coordination.
Target Audience

Backend engineers concerned about UUID collision risks

Similar To

uuidtools.com · custom microservices

Post Description

In response to some recent discussion here and on X about a company having an in house uuid microservice and team dedicated to it. At first that was made fun of, but further discussion revealed in fact sometimes uuids can collide due to improper entropy seeding most likely. In order to ensure that UUIDs are unique, we store each generation in a database, then check new generations against it to ensure they are not previously generated. As well, there is an API through which you can check if a UUID is present in the database. Paid options available for heavy use. Enjoy!

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