Free tools for multichannel sellers
Small things we needed and could not find an honest version of. Nothing to sign up for, no email, and every number checked against its source rather than copied off another calculator.
Safety stock calculator
Safety stock both ways, the reorder point, economic order quantity and turnover from one set of numbers, written for stock that is shared between channels rather than one warehouse. The formulas are printed beside the answers. Open the safety stock calculator →
Etsy fee calculator
Listing, transaction, payment processing and Offsite Ads on one order, with the three different fee bases Etsy actually uses, then the month with Etsy Ads and Etsy Plus. Figures from Etsy's fee policy, re-checked automatically. Open the etsy fee calculator →
eBay fee calculator
Final value fee by category and store tier, the per-order fee, Promoted Listings and the international fee on one sale, then the month on every store plan. Rates re-checked against eBay's own fee pages automatically. Open the ebay fee calculator →
Excel inventory templates
Six .xlsx files with the formulas already in: a simple list, reorder points, a stock in/out log, multi-location, value and COGS, and a multichannel sheet with a column per channel and a drift check no template gallery offers. Every formula evaluated before upload; nothing to enable. Open the excel inventory templates →
Google Sheets inventory templates
The same six templates with the Sheets import steps and the Sheets menu paths for building your own. File, Import, Upload, and the dropdowns and colours survive. Only functions Sheets and Excel evaluate the same way. Open the google sheets inventory templates →
Square fee calculator
What Square keeps on a sale, and the exact volume at which Plus or Premium earns its subscription back. Square repriced in 2026 and most calculators still quote the old rates. Rates re-checked against Square's own pages automatically. Open the square fee calculator →
SKU generator
Every variant code at once, plus the one thing other generators leave out: which of your channels would trim it. Amazon cuts at 20 characters and does not tell you. Limits read from our own integrations, not from a help centre. Open the sku generator →
Each one is the short version of a problem QuickSync solves the long way
A SKU that fits every channel is the thing that lets one sale take a unit off the other seven shops. A fee you can predict is the thing that makes a second sales channel worth opening. The tools answer those questions once; the product answers them every day.
The tools are the easy half
Keeping one stock count behind up to eight shops is the other. QuickSync matches products by SKU across every channel you sell on, and tells you which ones it could not pair.
No credit card. After the trial, syncing stops if you walk away. Nothing is removed from your shops.