About PatronPixel

PatronPixel is a free, private, in-browser customer ID generator. It produces customer-style IDs in three formats — random, pattern-based and sequential — for test databases, UI mockups, documentation, demos and mock data.

How it works

Pick a tab: Random for unguessable IDs with a live entropy gauge, Pattern for structured templates like CUS-####-AAAA, or Sequential for readable series like CUS-01001. Click any ID to copy it, copy the whole batch, or download it as a text file. Everything runs locally with crypto.getRandomValues() randomness — no sign-up, no server, nothing stored.

What it is not

PatronPixel generates sample strings for testing, not real customer records. Real customer identifiers must come from your own system of record with a database-level uniqueness guarantee. Never use generated IDs as real customer records.

Guides

The site also publishes short practical guides: customer ID formats, why businesses use customer IDs, best practices, use cases and an FAQ.