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SKU Generator

Build consistent product SKU codes from a token pattern, preview a batch and check existing codes.

Design a SKU pattern

Example SKU: —
Next sequence after this batch: —
Validation: —
Tokens are {CAT}, {ATTR}, {PREFIX}, {YYYY}, {N} and {CHK}; the check character is a modulo 36 letter.

How to use the SKU Generator

  1. Type a pattern such as {CAT}-{ATTR}-{N:3}-{CHK}.
  2. Set the category and attribute codes, then choose the sequence padding.
  3. Generate the preview list, copy it, or validate an existing SKU.

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Frequently Asked Questions

Common questions about the free online sku generator.

A SKU, or stock keeping unit, is a unique code that identifies one specific product variation so that stock can be tracked accurately.
Type a pattern such as {CAT}-{ATTR}-{N:3}-{CHK}. The category and attribute boxes fill the first tokens and the sequence fills the rest.
The generator supports {CAT}, {ATTR}, {PREFIX}, {YYYY} and {N}, and the sequence token can carry its own padding such as {N:4}.
It is a letter computed from the rest of the code using modulo thirty six, so a mistyped SKU is easy to spot.
Uppercase is the common convention because it is easier to read on labels and barcodes, but the tool can output lowercase as well.
Keep it short, usually between six and twelve characters, so it stays easy to type and fits neatly on a label.
No. Each SKU must be unique to a single product variation, otherwise stock counts and orders will be wrong.
Paste it into the validate box. The tool checks its length, the category prefix and the check character when one is used.
No. Everything is generated locally in your browser and nothing is stored or sent to any server.

Last updated: October 10, 2026