Integrations
Your stores. Your carriers.
One place to ship.
Connect Amazon, BigCommerce, eBay, Miva, Shopify, Square and WooCommerce, upload a spreadsheet, or send orders by webhook. Then ship with FedEx, UPS and USPS on your own accounts, or with built-in USPS.
14-day free trial No card to start Cancel anytime Human support from day one

- FedEx
- UPS
- USPS
Postsale apps
One account, on every screen you ship from.
Web app
The full app on a laptop, tablet or phone. Nothing to install.
Explore Web app →
Desktop app
Lives in your Mac menu bar or Windows system tray. Capture an address anywhere on your screen and make the label.
Explore Desktop app →
Chrome extension
Reads the order from the email or page you're on and makes the label without leaving it.
Explore Chrome extension →
Postsale CLI
Coming soon: ship from your terminal, or let an AI agent run it.
Explore Postsale CLI →
Stores
New orders come in on their own, and the tracking goes back to your store when you ship.
Amazon
Amazon orders land in the same list, and tracking goes back to Amazon.
Explore Amazon →
BigCommerce
BigCommerce orders come in, and tracking goes back. Each ship-to address gets its own label.
Explore BigCommerce →
eBay
eBay sales come in, and tracking goes back to your buyers.
Explore eBay →
Miva
Paid Miva orders come in, and tracking goes back to your store.
Explore Miva →
Shopify
Orders come in on their own, and tracking goes back to Shopify.
Explore Shopify →
Square
Each Square location connects as its own store.
Explore Square →
WooCommerce
Sign in to connect. Tracking goes back to WooCommerce.
Explore WooCommerce →
Everywhere else you sell, with Postsale Anywhere
Open an Etsy order, a Facebook Marketplace listing or an order in a chat or email, and Postsale Anywhere reads the address and items. Compare your rates, print the label and the order is saved in Postsale with the rest.
Carriers
USPS through Postsale’s built-in option or your own account. FedEx and UPS on your own accounts and negotiated rates. Connect as many FedEx, UPS and USPS accounts as you need, each with its own rates.
AI
Connect Claude or ChatGPT. It searches orders, compares rates and makes labels when you ask.
Import and API
Upload a spreadsheet and Postsale matches the columns for you, or connect your own systems with webhooks and the API.
Postsale sends your emails from a built-in address, or use a custom From email through SendGrid or SMTP.
Hardware
Print on a thermal label printer or the inkjet or laser printer you already have, and weigh packages on a USB scale, right from your browser.
Protection
Protect any shipment against loss, damage, shortage and porch piracy. Start the claim right from the shipment in Postsale.
Need a store or carrier we don’t list? Just ask.
We’ll look at your setup and let you know what’s possible.
14-day free trial No card to start Cancel anytime Human support from day one
