ShipStation vs Shippo vs ShippingEasy: Which Is Right for Your Small 3PL?
Comparing ShipStation, Shippo, and ShippingEasy for small 3PL warehouses — pricing, carrier support, WMS integration, and which one fits your operation best.
ShipStation vs Shippo vs ShippingEasy: Which Is Right for Your Small 3PL?
If you run a small 3PL, the shipping software you pick is the second most important tool in your stack — right after your WMS. It controls how fast you can produce labels, what rates you actually pay, which carriers you can offer, and how cleanly tracking flows back to your clients’ stores. Pick wrong and you’ll either overpay for postage or spend your day clicking between tabs.
Three platforms dominate the small-3PL market in 2026: ShipStation, Shippo, and ShippingEasy. They overlap heavily, but each has a distinct sweet spot. This guide walks through what each one is best at, the trade-offs for a multi-client warehouse, how all three integrate with MyOnlineSeller.com, and a clear recommendation by warehouse size.
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Why 3PLs Need Shipping Software Separate From Their WMS
A WMS (warehouse management system) and a shipping platform do different jobs:
- The WMS owns inventory, orders, picks, packs, billing, and the client portal. It knows what’s on the shelf, who it belongs to, and what’s already been picked.
- The shipping platform owns rate shopping, label creation, carrier accounts, manifest closeouts, and tracking number generation. It’s optimized for one thing: producing the cheapest, correct label as fast as possible.
A few WMS tools try to do shipping themselves. They almost always do it worse than a dedicated shipping platform — fewer carriers, weaker rate shopping, slower label generation, and no native rate negotiations from the shipping vendor’s volume.
For a small 3PL the right architecture is: WMS for everything operational, shipping platform for labels, and a clean integration between them. That’s the pattern these three tools fit into.
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ShipStation — Best for Multi-Channel Volume
ShipStation is the default shipping platform for the e-commerce world, and the most common one we see used by small 3PLs.
Pricing (2026): Plans range from around $10/month (very limited, 50 shipments) up to $230/month for higher volume and multiple users. There are no per-label fees on top of plan price (you pay carrier postage directly).
Carrier support: USPS, UPS, FedEx, DHL Express, Canada Post, GlobalPost, Sendle, Amazon Shipping, and dozens more regionals. ShipStation has its own pre-negotiated USPS and UPS rates that are usually competitive without needing your own carrier accounts.
Strengths for 3PLs:
- Best-in-class store integrations (60+ marketplaces and carts) — you can pull orders from anywhere if you ever need to.
- Powerful automation rules (auto-select packaging, service, and weight by SKU, weight, or destination).
- Branded tracking pages and shipment notifications.
- Multi-user with role-based permissions on higher plans.
- Mature API and webhooks for WMS integration.
Weaknesses for 3PLs:
- The plan tiers are based on shipment volume, so high-volume warehouses pay meaningfully more.
- Multi-store / multi-client setups can get messy if you map every client to a separate “store” — the UI wasn’t originally designed for 3PLs.
- Per-user fees on lower plans cap how many of your team members can have logins.
Best for: 3PLs shipping more than ~500 orders a month, with clients on multiple platforms (Shopify + Amazon + eBay), who want the deepest automation rules and the broadest carrier list.
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Shippo — Best for Simple Per-Label Pricing
Shippo took a different approach: instead of charging a monthly subscription, it charges per label.
Pricing (2026): A free tier exists (you only pay postage). Paid plans add features (branded tracking, return labels, advanced reporting) and start around $10/month. The pay-as-you-go model bills $0.05 per label on top of postage if you stay on the free plan.
Carrier support: USPS, UPS, FedEx, DHL Express, Canada Post, and many regional/international carriers. Shippo has competitive negotiated USPS rates available out of the box.
Strengths for 3PLs:
- Per-label pricing is forgiving for low-volume months and seasonal warehouses.
- Very simple UI — minimal training needed for new staff.
- Strong API — Shippo is one of the easier shipping APIs to integrate against directly.
- No per-user fees.
- Works well as a label-generation backend behind a custom WMS workflow.
Weaknesses for 3PLs:
- Less powerful automation rules compared to ShipStation.
- Fewer native store integrations — most 3PLs end up pushing orders to Shippo via API or via the WMS.
- Per-label cost adds up at high volume; once you’re consistently above ~3,000 shipments a month, ShipStation’s flat plans usually cost less.
- Multi-store / multi-client UI is functional but not as polished as ShipStation.
Best for: Lower-volume 3PLs (under ~2,000 shipments/month), 3PLs with seasonal volume swings, and operations that prefer to drive labels via API rather than a UI.
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ShippingEasy — The Forgotten Option
ShippingEasy was acquired by Auctane (the parent of ShipStation) and has since been positioned more as a small-business shipping platform than a 3PL tool.
Pricing (2026): Plans range from a free tier (50 shipments/month) up to around $159/month, with additional tiers for higher volume.
Carrier support: USPS, UPS, FedEx, with some pre-negotiated USPS Commercial Plus rates that are competitive for small parcels.
Strengths for 3PLs:
- USPS rates are often slightly better out of the box than ShipStation’s defaults for lightweight parcels.
- Built-in inventory and basic CRM features (less relevant for a 3PL using a WMS).
- Simpler UI than ShipStation — easier to train new staff on.
Weaknesses for 3PLs:
- Smaller carrier list than ShipStation or Shippo.
- Fewer integrations — it was built primarily for direct sellers, not multi-client 3PLs.
- Multi-client / multi-store handling is awkward.
- Roadmap and feature investment have slowed since the Auctane acquisition; most new development goes into ShipStation.
Best for: Very small 3PLs (one or two clients) shipping mostly USPS, where simplicity beats feature depth. Honestly, in 2026 most 3PLs should pick between ShipStation and Shippo — ShippingEasy is rarely the best choice anymore.
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How All Three Integrate With MyOnlineSeller.com
MyOnlineSeller.com works as the WMS layer in front of any of these shipping platforms. The integration pattern is the same across all three:
- Order import. MyOnlineSeller.com pulls orders directly from the client’s storefront (Shopify, Amazon, eBay, Walmart, WooCommerce, BigCommerce, Etsy, TikTok Shop) in real time and shows them in the “Awaiting Shipment” queue.
- Pick & pack. Your team picks the order, scans the items to verify the pick is correct, and confirms ready-to-ship.
- Label generation. The shipped order is pushed to your shipping platform of choice (ShipStation has the deepest native bidirectional sync; Shippo and ShippingEasy work via the same general pattern). Labels are generated using the carrier and service rules you configure.
- Tracking sync back. When the label is created, the tracking number flows back into MyOnlineSeller.com automatically and is pushed to the originating store — Shopify, Amazon, eBay, etc. — so the customer gets a tracking notification without anyone touching it.
- Client visibility. The brand sees the order, the tracking number, and the carrier in their branded client portal. No emails. No support tickets.
ShipStation has the most mature bidirectional integration today (we pull awaiting-shipment orders from ShipStation and push tracking back as labels are created). Shippo and ShippingEasy are supported via API and the same general flow. The full integration list is on the features page.
In all three cases, the rule is the same: MyOnlineSeller.com is the source of truth for inventory, billing, and the client portal. The shipping platform is the source of truth for labels and carrier rates. Each tool does what it’s good at.
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