string logo

Pull the Right String.

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

Happy ShipStation String User

Trusted by e-commerce brands using ShipStation

brands

Why ShipStation users need String

Feature

ShipStation

ShipStation+String

Smart Packing
Auto Rate Selection
Hold & Release Based On Inventory
Pre-Order Auto-Split
Inventory Auto-Split
Multi-Package Auto-Split
Auto-Batch
Works With Your Current Setup
❌ No
❌ No
❌ No
❌ No
❌ No
❌ No
❌ No
✅ Yes
✅ Yes
✅ Yes
✅ Yes
✅ Yes
✅ Yes
✅ Yes
✅ Yes
✅ Yes

String enhances your existing ShipStation workflow. No extra work needed.

Untangle My Shipping
 

Case Studies

How String made our customers fulfillment effortless.

Kareem Elgendy
Get the full case study
Will Nitze
Get the full case study
Ryan Byrd
Get the full case study
Chris Bair
Get the full case study
Untangle My Shipping
 

Pull the Right String.

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

Core Features

Smart Packing

Pick the right box every time so you don't waste space or money

Auto Rate Selection

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.

Time Savers

Hold & Release Based on Inventory

Out of stock? String holds the order and ships it as soon as it's ready.

Inventory Auto-Split

If only part of the order is ready, String ships what's available and holds the rest.

Pre-Order Auto-Split

Ship in-stock items now and send pre-orders later — automatically.

Multi-Package Auto-Split

String automatically splits big orders into separate ones for each box.

Auto-Batch

Group similar orders together so you ship more in fewer steps.

Works With Your Current Setup

No need to change tools — String runs right inside ShipStation.

Frequenty Asked Questions

 

How Does String Help If I Already Have Shipping Rules?

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!

Will String Only Pick Slow USPS Services?

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!

How Does String Pick the Smallest Package?

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.

Do I need to change my shipping setup?

No! String integrates seamlessly with ShipStation—no changes needed, just savings.

Untangle Your Shipping - Automatically!

The smart layer for ShipStation: fewer clicks, fewer errors, more savings.

Untangle My Shipping