Free, no signup. Updated October 2026
Free shipping tools for ecommerce sellers
Free tools for the shipping jobs that slow a store down: Amazon FBA fees, freight class, pallet loads, billable weight, USPS zones, freight paperwork, barcodes and label printing. Each one runs in your browser with no account. Simpl Fulfillment built them while running ecommerce fulfillment from Austin, TX.
Freight Class Calculator
Density and estimated freight class for each pallet or crate on the 13-class NMFC 2025-1 scale, with reclass risk and a BOL handoff.
Answers: What freight class is this pallet, and how close is it to the next one?
Open toolFBA Calculator
2026 Amazon FBA fulfillment, referral and storage fees for one unit, with peak rates, the 3.5% surcharge, profit, margin and ROI. No login.
Answers: What will Amazon charge to sell and ship this item, and what do I keep?
Open toolDimensional Weight Calculator
Billable weight for UPS, FedEx and USPS from your box size, using 2026 divisors and each carrier's rounding rules.
Answers: What will UPS, FedEx and USPS bill for this box?
Open toolUSPS Zone Map
The USPS zone between two ZIP Codes from the official USPS zone chart, plus a map of zones from your origin.
Answers: What USPS zone is this ZIP from my warehouse?
Open toolPallet Calculator
How many pallets fit in a 53 ft or 48 ft trailer or a container: straight, turned or pinwheel, with a floor plan, linear feet and a payload check.
Answers: How many pallets fit in this trailer, and how many linear feet do they take?
Open toolBill of Lading Generator
Fill out a straight or VICS-style bill of lading with handling units, dimensions, freight class, NMFC and hazmat details, then download the PDF.
Answers: What goes on a freight bill of lading?
Open toolBarcode Maker
Make scannable Code 128, UPC, EAN and ITF-14 barcodes for SKUs and cartons, plus FNSKU labels with title and condition.
Answers: Which barcode does this SKU or carton need?
Open toolLabel Resizer
Convert 8.5x11 and FBA label PDFs to 4x6 thermal labels, or 30-up FNSKU sheets to single labels.
Answers: How do I print this label PDF on a 4x6 thermal printer?
Open toolWho these free tools are for
Most people who land here run a growing ecommerce brand and handle shipping themselves: packing orders at the kitchen table, prepping FBA shipments between product launches, or quoting freight for the first time. You don’t need a logistics team or a paid software seat to get the numbers right. These tools cover the small, repetitive jobs that slow that work down: reformatting a label PDF so it prints clean, generating a barcode that scans, checking what a carrier will bill before you buy postage, working out how many pallets fit on a truck, and putting together a Bill of Lading without a template.
If you sell on Shopify, Amazon, or both, the workflow is the same. Open a tool, get your answer, and get back to running the store. Nothing here assumes you’re a Simpl customer, and nothing here tries to make you one. When the day-to-day shipping work outgrows doing it yourself, that’s when a 3PL like Simpl earns its keep.
Pick the right tool for the job
- Selling on Amazon? The FBA Calculator shows Amazon’s fees and what you keep per unit. The Label Resizer and Barcode Maker get FBA labels and FNSKUs print-ready.
- Pricing a parcel? The Dimensional Weight Calculator shows the billable weight carriers charge for, and the USPS Zone Map shows how far a package travels and what that does to the rate.
- Shipping freight? The Freight Class Calculator estimates the class, the Pallet Calculator shows how many pallets fit in a trailer and the linear feet they take, and the BOL Generator builds a Bill of Lading with the class, NMFC, SCAC and PRO fields a carrier expects.
Learn the basics
Ready to hand it all off?
Let Simpl store, pack, and ship your ecommerce orders.
We run ecommerce fulfillment end to end out of our Austin, TX warehouse: receiving, storage, pick-and-pack and shipping, plus Amazon FBA prep when you need it. The busywork stops being your problem.
Free tools FAQs
- Are these tools really free?
- Yes. Every tool on this page is free to use, with no signup, no trial and no watermark. You don't need to be a Simpl customer to get a result. Use them as often as you need.
- Do I need to create an account or install anything?
- No. The tools run in your browser. There's nothing to download or install, and no login. Open a tool and start using it.
- Is my data private?
- Yes. The label resizer, barcode maker, and calculators process your files and values directly in your browser, so your label PDFs, SKUs, and package data never get uploaded to Simpl or anyone else.
- Can Simpl just do this work for me?
- Yes. Simpl is a 3PL. We run ecommerce fulfillment and Amazon FBA prep from our Austin, TX warehouse, including receiving, storage, barcode labeling, pick-and-pack, and shipping. The tools help you in the meantime, and we can take the whole job off your plate when you're ready.
- What's the difference between these tools?
- Each one solves a different shipping job. The Label Resizer and Barcode Maker get your inventory print-ready. The Dimensional Weight Calculator and USPS Zone Map help you predict shipping cost. The Freight Class Calculator, Pallet Calculator and BOL Generator handle LTL and truckload freight. The FBA Calculator estimates Amazon's fees and your profit per unit. Use whichever matches the task in front of you.
- Do these tools work on mobile?
- Yes. The tools run in any modern browser, so they work on a phone or tablet as well as a desktop. For the label resizer and barcode maker, a larger screen makes it easier to check your output before you print.
- Which tool should I start with?
- Start with whatever's slowing you down today. Selling on Amazon? The FBA Calculator for fees, then the Label Resizer and Barcode Maker for your FBA shipment. Trying to work out shipping cost? The Dimensional Weight Calculator or USPS Zone Map. Booking freight? The Freight Class Calculator, the Pallet Calculator to plan the load, then the BOL Generator.