Pull the Right String.
ShipStation is powerful. String makes it effortless.
The right box, the right rate, the right workflow,
every time.

ShipStation is powerful. String makes it effortless.
The right box, the right rate, the right workflow,
every time.
String enhances your existing ShipStation workflow. No extra work needed.
How String made our customers fulfillment effortless.
ShipStation is powerful. String makes it effortless. The right box, the right rate, the right workflow, every time.
Pick the right box every time so you don't waste space or money
String picks the carrier service that gets the package to your customer when they expect it without the extra clicks and at the best price.
Out of stock? String holds the order and ships it as soon as it's ready.
If only part of the order is ready, String ships what's available and holds the rest.
Ship in-stock items now and send pre-orders later — automatically.
String automatically splits big orders into separate ones for each box.
Group similar orders together so you ship more in fewer steps.
No need to change tools — String runs right inside ShipStation.
Your ShipStation rules might work 60-70% of the time, but when they're wrong, it costs you money. Your team doesn't have time to check every order and find the best rate manually. That's where String comes in! String knows your products, package sizes, and carrier options. When a new order comes in, we automatically pick the best option in real time. Instead of being right only 70% of the time, you now get the best rate 100% of the time—saving you money on every shipment!
No! String is built to get your orders to customers fast while also saving you money. String checks delivery times for every shipment. If a shipping option won't arrive on time, String filters it out automatically. This means you get the best rate without slowing down delivery—and sometimes, even faster shipping!
String finds the smallest and best box for every order. We keep track of all your products' sizes and weights and test different ways to fit them into the smallest box possible. If a product needs special packing, no problem! String follows your rules to make sure everything is packed just right. Need to add new products or packages? It's easy! No matter how many items you have, String will always find the best fit to save you money.
No! String integrates seamlessly with ShipStation—no changes needed, just savings.
The smart layer for ShipStation: fewer clicks, fewer errors, more savings.