Rate Lab

Develop by Shopify

$39-$299

/ Month

7 Days Free Trial

"Customize shipping rates effortlessly with Rate Lab's DIY carrier solution."

About Rate Lab

Launched Oct 16, 2025

Built by Shopify

Address

151 O’Connor St, Ottawa, ON, ON, CA

Website Support Portal Privacy policy Tutorial FAQ Document

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Description

DIY Custom Carrier Service. Design your own shipping rates using our JSON/liquid editor.

Rate Lab is a DIY Custom Carrier Service solution. You have full control over what rates are returned to checkout. If you're considering a custom carrier service, but don't want to build and maintain a custom app, this is the solution for you.

Take full control of your Shipping Rates with Liquid rate logic
Copy/paste common use cases from our sample library
Available to all Shopify plans

Top Helpful Reviews

Ohio Earth Food Organic Fertilizer

Dec 16, 2025 on Shopify

I am hoping this will solve our problem of saving customers money on shipping by switching from UPS to fright at a certain quantity order. This was a great idea and setup by Pogodan.