SKU Generator - Build Product Codes from Attributes

SKU Generator for Structured Product Codes

This SKU generator builds consistent, structured product codes from attributes like category, brand, color, and size. Define your format once and the tool assembles a clean SKU automatically — or generate hundreds at a time for every product variation.

A SKU (Stock Keeping Unit) is the internal code you assign to each item to track stock, manage orders, and find products fast. It is ideal for store owners, sellers, and warehouse teams who need a repeatable naming system that works across Shopify, Amazon, eBay, WooCommerce, and any POS or inventory platform.

Private by design: every SKU is built in your browser. Your segments, values, and generated codes are never uploaded — even the CSV export is created locally on your device.

How to Use the SKU Generator

Choose a preset or start custom

Pick an industry preset — Fashion & Apparel, Electronics, Food & Beverage, or General Retail — to load a recommended set of segments, or choose Custom to build your own from scratch.

Configure each segment

Every segment is one part of the code. Set its Type (Category, Brand, Color, Size, and more), enter a Value such as "Nike" or "Black", review the auto-filled Abbreviation, and pick how many Chars it uses (2 to 8). Use Add Segment and the remove button to shape the structure.

Adjust the format

Choose a Separator (dash, underscore, dot, or none) and a Case (UPPERCASE, lowercase, or As-is). The live Preview updates instantly so you can see the final code and its pattern.

Generate and export

For one code, copy it straight from the preview. For many, type comma-separated values per segment (e.g. "Black, Blue, White"), click Generate to build every combination, then Copy All or Export CSV for import into your inventory system.

Features

Industry Presets

Start fast with ready-made templates for Fashion & Apparel, Electronics, Food & Beverage, and General Retail.

Customizable Segments

Build codes from ten segment types: Category, Brand, Color, Size, Material, Gender, Style, Season, Sequence, and Custom.

Smart Auto-Abbreviation

A built-in dictionary of 100+ common terms maps values like Black to BLK and Cotton to COT; unknown words fall back to vowel-stripping or initials.

Editable Abbreviations

Every abbreviation is a starting point you can overwrite, with a per-segment character limit of 2 to 8 to keep codes tidy.

Flexible Formatting

Pick a separator (dash, underscore, dot, or none) and a case style (UPPERCASE, lowercase, or As-is) to match your platform.

Auto Sequence Numbers

Add a Sequence segment and each generated SKU gets a unique, zero-padded incrementing number automatically.

Bulk Generation

Enter comma-separated values per segment and the tool builds every combination (the cartesian product), up to 1,000 codes per run.

Duplicate Detection

Repeated codes in a bulk list are flagged with a Duplicate badge so you can catch conflicts before they reach your catalog.

Copy & CSV Export

Copy a single SKU, copy the whole list at once, or download every generated code as a ready-to-import CSV file.

Saved Configuration

Your segments, settings, and preset choice are remembered in your browser, so your work is right where you left it next visit.

Frequently Asked Questions

What is a SKU?

A SKU (Stock Keeping Unit) is a unique internal code you assign to each product or variation. Unlike a UPC barcode, which is a standardized number used industry-wide, a SKU is yours to design however suits your business — this tool helps you keep that design consistent.

How do I create SKU codes for my products?

Choose a preset or start custom, then add a segment for each attribute that matters — for example Category, Brand, Color, and Size. Enter the values, adjust the abbreviation and length, then copy the preview. For a whole catalog, list comma-separated values and generate every combination at once.

What is a good SKU format and length?

Aim for roughly 8 to 12 characters — long enough to be meaningful, short enough to fit on labels and POS screens. Order segments from general to specific (category, then brand, color, size) and end with a sequence number. Use the Chars setting on each segment to control overall length.

Should I use dashes or underscores as separators?

Dashes (-) are the most common and the easiest to read. Underscores (_) help when a system has trouble with dashes, and dots (.) appear in some European setups. You can also choose no separator for a compact code. Pick whatever your inventory platform accepts cleanly.

Can I generate SKUs in bulk and export to CSV?

Yes. Enter comma-separated values for any segment (e.g. "S, M, L, XL" for Size) and click Generate to build every combination, up to 1,000 codes per run. A Sequence segment gives each one a unique number, and you can Copy All or Export CSV for import into your system.

What happens if I get duplicate SKUs?

Duplicates are detected automatically and flagged with a Duplicate badge in the bulk list. This usually happens when two different values produce the same abbreviation — fix it by editing the abbreviation or raising the character count so each code stays unique.

Is my data saved and private?

Yes on both counts. Your segments, settings, and preset are stored in your own browser and restored when you return. Nothing is sent to a server — all processing, including the CSV export, happens locally on your device.