Your #1 Online Shipping Software To Print USPS Shipping Labels

Integrated Marketplaces

(Complimentary; No Charge with Pro or Enterprise Plan)

GrandShipper will connect to your marketplace, online store and shopping cart seamlessly. Pulling specific data with ease. Removing any manual operations like copying and pasting or jumping from one webstore to another. Our web based software helps you manage all your stores in a single screen.


Selling one or fifty items a day; GrandShipper is a perfect solution for your eBay account. Ability to pull all the data in your eBay listing like mail class service, weight and even dimensions of box. Simply press print and a USPS discounted label will print while pushing tracking back to your listing automatically.


Seamlessly connect your Etsy store with GrandShipper. Whether you have sold a handcrafted frame, personalized jewelry, or a customized dog collar. Our application will be able to pull your ready-to-ship orders, print your USPS shipping labels, and automatically upload the tracking number back to your store. Easily track your shipments in our shipment dashboard.


GrandShipper connects with your Shopify account to process orders in a seamless manner. Ability to process orders through SKU’s, order numbers and many more. Customer would like to return a shipment, no problem, with our scan-based returns capabilities, you can create a label without being charged until it is first scanned. Let us help grow your business to the next level.


WooCommerce is a highly customizable platform, allowing users to add various extensions and plugins to enhance the functionality of their online store.  WooCommerce works seamlessly with many WordPress themes, and there are also specific themes designed to optimize the appearance and performance of WooCommerce stores.   GrandShipper will seamlessly pull your ready-to-ship orders, create a USPS shipping label, and post-back the tracking number. 

Wix stands out as a widely used website builder, enabling users to establish, oversee, and expand their online footprint. Featuring a user-friendly interface and a diverse set of tools, Wix empowers both individuals and businesses to construct websites without requiring advanced technical expertise. GrandShipper seamlessly integrates with your Wix store, streamlining the entire process of fulfilling your prepped-for-shipping orders with just a few clicks.

Strategic Partners


GrandShipper strategically partnered with EasyPost to print USPS shipping labels using their easy API solution.  EasyPost, a company that was founded in 2012 as the first RESTful API for shipping. EasyPost’s Shipping API is designed to help customers, ranging from public companies to small and medium-sized businesses (SMBs), solve complex logistics problems.


GrandShipper USPS API is proudly powered by Pitney Bowes.  Pitney Bowes is a publicly traded global technology company that has been serving clients for over 90 years. Providing customer engagement, global e-commerce, and mailing shipping services to approximately 1 million customers in approximately 100 countries.

New Project (2)

GrandShipper utilizes QZ to provide customers the ability to connect their printer and scales seamlessly.  QZ, a company that was founded in 2013 with a focus on thermal printing via web browsers.  QZ specializes in facilitating communication between browsers and hardware, particularly in the realm of printers, industry automation, and raw device communication.

Integrations in Progress

Stay tuned as we are currently working in integrating our API to the following brands below.


Connect your marketplaces with GrandShipper

Connecting your marketplaces is quick and easy. Sign up for a FREE account and start printing in minutes!

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