Over 1000 merchants trust OneCart to automatically sync inventory, centralize orders, and save 10+ hours weekly managing their Shopify and WooCommerce stores.
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Connect Shopify and WooCommerce in under 10 minutes with OneCart's guided setup.
Plenty of sellers run two storefronts, a Shopify store and a self-hosted WooCommerce store on WordPress, whether they are migrating between them or keeping both live for different audiences. Without a connector, you maintain catalogue and stock in two places by hand. OneCart links a Shopify store and a WooCommerce store so one inventory pool feeds both, and your marketplaces sit in the same dashboard alongside them.
Shopify and WooCommerce share one stock pool in OneCart. When a unit sells on either storefront, OneCart reduces the matching SKU on the other, so the same item is not sold twice across your two stores. If stock would go negative it sends zero to help prevent overselling.
Orders from both your Shopify store and WooCommerce site are brought into OneCart automatically and land in one queue, so you fulfil from a single dashboard instead of moving between Shopify admin and your WordPress backend.
Manage your catalogue once in OneCart and keep it aligned across both storefronts. Map each Variant SKU in OneCart to the matching SKU on Shopify and on WooCommerce so quantities sync to the right product on each store.
Connect Shopify: go to Settings > My Platforms > Manage Connections and click Add shop for Shopify. Install the OneCart app when Shopify prompts you, log in to the Shopify store you want to link, then log in to OneCart. A green banner confirms Shopify is connected.
Connect WooCommerce with REST API keys. In your WordPress backend go to WooCommerce > Settings > Advanced > REST API and click Add Key. Set the Description to OneCart, pick an admin user, set Permissions to Read/Write, and click Generate API key. Save the API Key, API Secret, and your site URL, and make sure the Legacy API is enabled. If you run a firewall such as Cloudflare, whitelist the OneCart app first.
Add the WooCommerce store at app.getonecart.com/shops/new?platform=WooCommerce, then manage both storefronts from one product list and map each Variant SKU in OneCart to the matching SKU on each store so stock stays linked.
Keep the same products and stock levels on both storefronts from one place in OneCart, instead of editing each store separately whenever something changes.
Whether you are migrating a catalogue or running both stores in parallel, OneCart keeps inventory aligned across the two so neither storefront promises stock the other has already sold.
Everything you need to know about connecting Shopify and WooCommerce with OneCart.
No. Shopify installs the OneCart app and you log in once from Manage Connections. WooCommerce uses REST API keys you generate in your WordPress backend with the Legacy API enabled, then add to OneCart. Each storefront connects through its own flow.
Yes. OneCart is multi-channel, so alongside your Shopify and WooCommerce stores you can add marketplaces like Shopee, Lazada, TikTok Shop, and Amazon to the same account and manage them all from one dashboard.
Both work. OneCart keeps your catalogue and stock aligned across the two storefronts from one place, so whether you are moving between them or running both in parallel, you are not editing two systems by hand.
OneCart has plans for different order volumes and channel counts rather than a flat fee. You can review the current tiers and what each plan includes on the /pricing/ page.
Here's what businesses like yours have achieved by connecting Shopify and WooCommerce.
"OneCart didn't just fix our operations, it gave me my sanity back. After struggling with platforms that broke everything, I finally found a system that's reliable, affordable, and backed by real support. If you're still not on OneCart, you're leaving time, money, and peace of mind on the table."

"OneCart saved our business during the pandemic. Stock automatically syncs between platforms and I can manage everything remotely. We've cut inventory discrepancies by 100% and fulfillment time by 75%."

"Order processing that used to take 3 hours now takes just 20 minutes with OneCart. Our warehouse efficiency increased 400%, deliveries are faster, and customer satisfaction scores are up 32% since implementation."

"The OneCart team's support is outstanding. When we needed help expanding to WooCommerce, they worked with us one-on-one until everything was perfect. We've increased sales by 47% with no additional staff since connecting our platforms."






Expanding to WooCommerce from Shopify used to take days. OneCart makes it happen in hours. Copy your entire product catalog with one click - complete with descriptions, images, variants, and pricing. Get selling on WooCommerce without the manual work.
"I expanded to WooCommerce in a single afternoon using OneCart. What would have taken my team a week took just hours."
The average multi-channel seller loses $2,000+ monthly to inventory discrepancies. OneCart eliminates this entirely. When a product sells on Shopify, we instantly update WooCommerce's stock level, and vice versa.
Manage everything from one dashboard. Set low-stock alerts, track inventory across warehouses, and make bulk adjustments that apply to all your sales channels instantly.
"Since using OneCart, we've completely eliminated overselling issues that used to cost us thousands monthly."
Stop the daily platform-switching nightmare. OneCart consolidates all your Shopify and WooCommerce orders into a single, intuitive dashboard. See everything at a glance and fulfill orders in batches.
Our customers report processing times dropping from hours to minutes. Faster fulfillment means happier customers, better reviews, and higher platform rankings.
"Order processing that took 3 hours now takes 20 minutes. OneCart completely transformed our fulfillment process."
See how much you could save by connecting Shopify and WooCommerce with OneCart.
The all-in-one solution for Shopify & WooCommerce sellers who want to grow without the headaches.
Never worry about stock levels again. Our instant, 24/7 synchronization updates Shopify and WooCommerce within seconds of any change.
Cut admin work by 75%. Automate the tedious tasks of updating multiple platforms and reconciling inventory discrepancies.
Manage products, inventory, and orders for Shopify, WooCommerce, and all your other channels from one intuitive interface.
Add new sales channels or handle 10X order volume without adding staff. OneCart scales with your business without added complexity.
Get help when you need it. Our responsive team is based in Singapore and provides personalized assistance for your integration.
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Everything you need to know about connecting your stores with OneCart.
OneCart creates a real-time connection between your stores that works 24/7:
This happens automatically without any manual work, preventing overselling and inventory discrepancies that cost merchants thousands in lost sales and customer goodwill.
Our customers report saving 75-90% of the time previously spent on order management:
For a merchant processing 50 orders daily across multiple platforms, this typically saves 2-3 hours every day, time you can invest in growing your business instead.
Most merchants complete the basic setup in under 10 minutes:
Your inventory will begin syncing immediately. Our onboarding team is available to help if you need assistance, and we offer premium onboarding services for larger merchants with complex requirements.
OneCart is designed for complex catalogs with variations, bundles, and kits:
This ensures that even sophisticated product catalogs with thousands of SKUs and variations maintain perfect accuracy across all your sales channels.
OneCart scales to support businesses of all sizes:
We have clients ranging from small merchants with 10 orders/day to large enterprises processing thousands of orders daily across multiple channels. The system is designed to grow with your business.
Our integration experts are ready to help you connect Shopify and WooCommerce seamlessly.
Our simple 3-step process gets you up and running fast.
Create your OneCart account and connect your Shopify and WooCommerce stores through our guided setup.
Time: 10 minutes
Choose how products, inventory, and orders sync between platforms based on your business needs.
Time: 15 minutes
Begin managing your Shopify and WooCommerce stores from one dashboard with real-time synchronization.
Time: Immediate
Most merchants complete setup in under 30 minutes!
Start Your Free 14-Day TrialJoin 1,000+ merchants who have automated their Shopify and WooCommerce operations with OneCart.
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