Buy, print and track USPS labels
ShipYesterday is a shipping dashboard with a prepaid wallet. Ship one parcel or a CSV of orders, print on paper or a thermal printer, follow every parcel, and add the API when your store is ready for it.
Sandbox preview: test labels and test credit. No real postage or money moves yet.
- 2Maya Ortega, BrooklynUSPS Ground Advantage, ref ORDER-4480Print
- 3Sam Lee, New YorkUSPS Ground Advantage, ref ORDER-4481Print
- 4Ines Park, AustinUSPS Priority Mail, ref ORDER-4482Buying
- 5Leo Grant, DenverUSPS Ground Advantage, ref ORDER-4483$7.68
- 6Ruth Adezip: Use a 5 or 9 digit ZIPSkipped
The whole job happens in the dashboard
One label, start to finish
Type the address, compare USPS services with our fee shown on each, buy, print a 4x6 PDF or ZPL for a thermal printer.
- USPS Ground Advantage4 days, postage $6.53 + fee $0.68$7.21
- USPS Priority Mail2 days, postage $13.85 + fee $1.04$14.89
- USPS Priority Mail Express1 day, postage $32.40 + fee $1.97$34.37
A whole day of orders
Drop in a CSV, fix the rows that need it, buy every label in one go. Each row is bought once, even if you click twice.
Every parcel, tracked
Each label has its own timeline, updated as the carrier scans it.
- DeliveredFront door, Brooklyn NY, Nov 8, 2:14 PM
- Out for deliveryBrooklyn NY, Nov 8, 8:02 AM
- In transitJersey City NJ, Nov 7, 11:40 PM
- Label createdSan Francisco CA, Nov 5, 4:31 PM
A wallet you can read
Every label, void and top-up is one line with the balance after it. Lines never change once written.
- Label bought-$7.21USPS Ground Advantage$291.43
- Label voided, refunded+$14.89USPS Priority Mail$298.64
- Credit added+$250.00Sandbox credit$283.75
Shipping from your own code? The API does everything the dashboard does
Carriers, exactly as they stand
We only offer a carrier once we've bought and voided its labels ourselves. Today that is USPS.
- Ground Advantage
- Priority Mail
- Priority Mail Express
- First-Class Package International
- Priority Mail International
- Priority Mail Express International
Rates and labels, domestic and international, bought and voided in testing. Last checked Nov 5, 2026.
- UPSNot available yetRates come back in testing. Labels are not offered.
- DHL ExpressNot available yetInternational rates come back in testing. Labels are not offered.
- FedExNot available yetReturned no rates in our tests. Not offered.
Choose the address that prints
Ship from a warehouse and print your brand's returns address instead. Your order number prints in the corner.
Ships from the dock. The label shows the brand's return address.
Pricing
$0.68Our fee on $6.53 of USPS postage. Every label costs the postage plus 35 cents and 5%, at least 50 cents and never more than $15. No monthly plan.Work out any labelShip it today
Open an account, add sandbox credit and buy a test label in a few minutes.