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Free Tool • Stop Losing Track of Your Inventory

Free SKU Generator for Resellers

Stop guessing what "Blue Shirt" means in your spreadsheet. Use our free SKU number generator to build clean, readable codes that tell you exactly what an item is and which bin you hid it in.

Build Your Custom SKU
Fill in the blanks below to create your perfect inventory code.

Check Your Net Profit Instantly

Got your inventory organized? Now make sure your pricing makes sense. Drop your item costs into our fee calculators to see your exact take-home cash.

Your Custom SKU List
Copy one code at a time or grab the whole list at once.
LEV-JAC-M-EUC-GW-0726-001
LEV-JAC-M-EUC-GW-0726-002
LEV-JAC-M-EUC-GW-0726-003
LEV-JAC-M-EUC-GW-0726-004
LEV-JAC-M-EUC-GW-0726-005

Keep Track of Your SKUs Across 7 Platforms

Once you have your shiny new SKU numbers, plug them into Voolist. When an item sells on Depop, Voolist uses that SKU to automatically delist it from eBay and Poshmark so you never accidentally sell the same vintage tee twice.

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Stop Buying Printer Ink

Need to print these labels? Don't use your inkjet printer. Seriously. Read our guide on the best thermal printers to print your SKU labels (and shipping labels) without ever buying expensive ink again.

Check out the exact gear we use to save our margins

What is a SKU Number and Why Do Resellers Actually Need One?

A SKU number (Stock Keeping Unit) is basically a secret code you make up to track your inventory. Unlike a regular barcode you'd scan at the grocery store, you get to decide exactly what a SKU means for your own business.

If you are selling on multiple platforms like Depop, eBay, and Poshmark, using a SKU number generator saves you from completely losing your mind. It tells you exactly what an item is, what condition it's in, and exactly which bin it is sitting in when a buyer finally checks out.

How to Make Perfect SKU Numbers for Your Reselling Inventory

Building a good SKU system just takes a little common sense. The best strategy is breaking your code into small, easy-to-read chunks:

  • Brand (2-3 Letters): Keep it simple. Use LEV for Levi's or PAT for Patagonia.
  • Category (2-3 Letters): What is the item? JAC for Jacket, DEN for Denim.
  • Specifics: Tag the size or condition (like NWT for New With Tags or EUC for Excellent Used Condition).
  • Source or Location: Where did you find it, and where is it now? (e.g., GW for Goodwill, or BIN3 for your storage box).
  • Sequence: End with a basic number (e.g., 001 to 999) so every single item has its own unique, trackable code.

Using Your SKU Numbers With a Reseller Inventory App

Generating your codes is just step one. To really scale your reselling business, you should drop these SKUs into a reseller inventory app or cross-listing software.

When you list an item using a tool like Voolist, tying it to a specific SKU ensures your inventory stays synced. When that vintage sweater sells on Poshmark, the software sees the SKU and instantly delists it from eBay, so you never have to deal with an angry buyer over an accidental double-sale.