Free, no signup. Updated November 2026
Free FNSKU label generator for Amazon FBA
Paste your FNSKUs and print item labels in the sizes Amazon specifies.
Amazon stopped applying FNSKU labels for US sellers on January 1, 2026, so the labels now come from you or whoever preps your inventory. Paste one FNSKU or a list, add the product title and condition, and download thermal labels or 30-up sheets. Nothing you enter is uploaded.
Amazon item label: a Code 128 barcode with the FNSKU, product title, and condition.
One value per line, up to 120 barcodes per PDF.
Long titles are shortened in the middle to fit. Printed on every label in this batch.
Amazon item labels show the condition under the title.
Live preview
1 valuePNG and SVG save the first value. The PDF has every label.
What Amazon requires on an FNSKU label
These are Amazon's item label requirements as described in our FNSKU guide. Check Seller Central before a large print run.
| On the label | The FNSKU as a barcode and as text, the product title, and the condition. |
|---|---|
| Label size | Between 1 × 2 inches and 2 × 3 inches. |
| White space | 0.25 inch at the sides and 0.125 inch at the top and bottom of the barcode. |
| Black on white, non-reflective, removable adhesive, readable for 24 months. | |
| Printer | Thermal or laser. Amazon recommends 300 dpi or better and does not allow inkjet. |
| Placement | One per unit on a flat side, covering any other barcode such as the UPC. |
Who has to label units in 2026
Two changes this year put labeling back on sellers.
Amazon no longer labels for you
Amazon ended its FBA Label Service and item prep for US fulfillment centers on January 1, 2026. Units that need an FNSKU must arrive already labeled.
Commingling ended
Amazon ended commingled inventory on March 31, 2026. Customers now receive units from your own stock, and the barcode rules changed with it.
Brand owners can sometimes skip it
If you are the brand's representative in Brand Registry and the product is new and has one scannable UPC, EAN or ISBN matching the ASIN, the manufacturer barcode can be enough.
Everyone else labels
Resellers, and any product without a valid manufacturer barcode, including GTIN-exempt items, need an FNSKU label on every unit.
The full rules are in what an FNSKU is and who needs one.
Which label size to print
All three of these fall inside Amazon's 1 × 2 to 2 × 3 inch range.
2.25 × 1.25 thermal
The common choice for a thermal printer. One label per unit, off a roll, with room for the title and condition.
3 × 1 thermal
Useful for long, narrow packaging where a taller label would wrap around an edge.
Avery 5160 sheets
30 labels per letter page at 1 × 2⅝ inches, the same layout as Seller Central's sheet. Use a laser printer, not inkjet.
Already have Amazon's sheet?
If you downloaded the 30-up PDF from Seller Central and want single thermal labels, the label resizer splits it for you.
How to print FNSKU labels
Three steps, about a minute, no account.
Step 1
Copy the FNSKU from Seller Central
It usually starts with X00. Paste one, or several with one per line, exactly as Amazon shows them.
Step 2
Add the title and condition
Enter the product title and pick the condition so the label carries the lines Amazon expects.
Step 3
Pick a size and print
Choose a thermal size or Avery 5160 and download the PDF. Set printer scaling to 100% so the label prints at its real size.
FNSKU label FAQs
- What is an FNSKU?
- An FNSKU is the barcode Amazon uses to track your units inside its fulfillment centers. It identifies your offer of a product in a given condition, so every unit under that listing carries the same label. Most start with X00.
- What size is an FNSKU label?
- Amazon accepts item labels between 1 × 2 inches and 2 × 3 inches. The most common are 2.25 × 1.25 inch thermal labels and 30-up sheets of 1 × 2⅝ inch labels, the Avery 5160 layout.
- What barcode type is an FNSKU?
- Code 128. The label also shows the FNSKU in text under the bars, plus the product title and condition.
- Can I print FNSKU labels on a regular printer?
- Yes, on a laser printer with 30-up label sheets. Amazon does not allow inkjet printers because the ink can smear and the label has to stay scannable for 24 months.
- Does the FNSKU label have to cover the UPC?
- Yes. Cover every other visible barcode on the unit completely so Amazon's scanners read only the FNSKU. Leave serial-number barcodes and Transparency codes uncovered, and don't cover warning or safety labels.
- Does Amazon still apply FNSKU labels for a fee?
- Not for US fulfillment centers. Amazon ended the FBA Label Service on January 1, 2026. You label units yourself, have your supplier do it, or use a prep provider.
- Can Simpl label my units for FBA?
- Yes. Simpl applies FNSKU labels as part of Amazon FBA prep at our Austin, TX warehouse, along with receiving, inspection and shipping to Amazon. FNSKU labeling is $1 per unit.
Other barcode types
The same tool makes every type below. Not sure which one you need? The barcode maker has a chooser.
- UPC Barcode GeneratorUPC-A barcodes from 11 or 12 digits, with the check digit calculated or verified. PDF, PNG and SVG.
- Code 128 Barcode GeneratorCode 128 barcodes from any SKU, order number or text, one at a time or as a batch PDF.
- Code 39 Barcode GeneratorCode 39 (3 of 9) barcodes for asset tags and legacy systems. PDF, PNG and SVG.
- ITF-14 Barcode GeneratorITF-14 case barcodes from a GTIN-14, with bearer bars and the check digit handled.
- EAN-13 Barcode GeneratorEAN-13 barcodes from 12 or 13 digits, with the check digit calculated or verified.
Need labels applied too?
Simpl can store, label, and ship your inventory.
We handle ecommerce fulfillment, receiving, storage, barcode labeling, shipping, and Amazon FBA prep from our Austin, TX warehouse.