See testimonials & 100+ of our 5-star reviews
Shipping & Inventory Management Software
Founded in 2015, trusted by 1000s of sellers
- Compare rates instantly
- Access pre-negotiated discounts
- Automate order fulfillment
- Sync inventory in real time
New! Smart Rates – Let automation pick the best rate. Read More.


Approved Solution Provider Since 2015

Approved Solution Provider Since 2020

Approved Shopify App since 2016

Approved Solution Provider

Approved TikTok Shop App
Approved solution provider for major platforms, see the full list.
Offer Free 2-Day Delivery
Fully Automated
Use multichannel fulfillment by Amazon FBA and Walmart WFS to offer fast shipping on any platform.
They handle storage, shipping, returns, and refunds — you focus on sales.


Smart Rates is a GeekSeller feature that helps you automatically select the most efficient or cost-effective shipping method for your orders.
Smart Rates compares real-time carrier rates (such as FedEx, UPS, USPS, etc.) based on speed and cost, then automatically picks the best option according to your preferences.
Discounted Shipping Rates
Pre-negotiated discounts from FedEx, UPS, USPS, DHL, and Canada Post. With EasyPost and GeekSeller, you can compare rates, print labels, and automate fulfillment.
Also supporting Walmart’s “Ship with Walmart” and Amazon’s discounted labels, offering extra protection and some of the lowest rates available.


Offer Free 2-Day Delivery
Fully Automated
Use multichannel fulfillment by Amazon FBA and Walmart WFS to offer fast shipping on any platform.
They handle storage, shipping, returns, and refunds — you focus on sales.
5-star Support
Live Chat, Video Calls, and Email
Our support team has worked with GeekSeller for many years and knows every detail of our integrations.

Easy to use interface for inventory and order management
Start with our $0/mo plan

GeekSeller was fantastic to work with. Their support is top notch. They always handled every problem we had and made sure they service did exactly what we needed it to do. Highly recommended.

We see a huge shift of sellers moving their inventory to Amazon and Walmart, using them as primary 3PLs to fulfill orders from any platform.
With recent policy changes, you can now fulfill Amazon orders using Walmart Fulfillment Services (WFS) and Walmart orders using Fulfillment by Amazon (FBA).
Multichannel solutions like Amazon MCF and Walmart MCS are extremely competitive, driven by both companies’ heavy investments in logistics, warehousing, and automation.

Daniel Sodkiewicz
Co-founder of GeekSeller.com
Interview with GeekSeller CoFounder
GeekSeller Co-Founder Daniel Sodkiewicz shares his perspective on Walmart Marketplace trends in this Prosper Show 2025 interview. He highlights growth opportunities, fulfillment strategies, and how sellers can adapt to the changing e-commerce landscape.
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