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Run eBay, Amazon, Shopify, Walmart & Etsy from one dashboard.
Import your eBay listings, push them to Amazon, Shopify, Walmart, and Etsy, and sync inventory in real time. Stop overselling. Live in under 5 minutes.
No credit card · Cancel anytime · Setup in 5 min
How It Works
eBay-only to five channels in under 5 minutes.
1. Connect
One-click login for eBay, Amazon, Shopify, Walmart, and Etsy. No API keys. No developer. No spreadsheets.
2. Import
We pull your full eBay catalog — images, descriptions, variants, pricing — in seconds. Nothing to map by hand.
3. Cross-list
Push to every other channel with one click. We rewrite each listing for the platform that's reading it — Amazon bullets, Etsy tags, Shopify SEO. Not copy-paste. Not generic.
Built for Sellers Who Refuse to Bet the Business on One Algorithm
3Dsellers handles the complexity of multichannel selling so you don't have to.
Inventory Sync
Real-time stock sync across all platforms in under 30 seconds. Sell on Amazon, your eBay listing updates instantly.
AI Optimization
AI rewrites your listings per platform — Amazon bullet points, Etsy tags, Shopify SEO. Not a generic copy-paste.
Unified Orders
Every order from every platform in one inbox. No more switching between 5 browser tabs.
Oversell Protection
When stock hits zero, listings auto-pause across all platforms. No angry buyers, no manual refunds.
What changes when you stop betting everything on eBay.
Real outcomes sellers see in their first 90 days. Same catalog, same effort — more channels, more revenue.
+47% revenue in 90 days
Average seller adds nearly half their revenue in three months — without launching a single new product. Same catalog, more buyers.
+10 hours back every week
Stop copy-pasting between Amazon, eBay, and Shopify tabs. Listings push to every platform in one click. Sync runs in the background.
Algorithm-proof revenue
One platform tanks? You have four more. Spread your business across 5 marketplaces and stop losing sleep over the next eBay update.
Real-Time Inventory Sync Across Every Channel
Sell one on Amazon and your eBay quantity drops in under 30 seconds. Same for Shopify, Etsy, and Walmart. No more overselling, no more refund emails, no more eBay defect strikes.
Per-Platform Listing Rewrites
(Not Copy-Paste)
Amazon ranks on bullets. Etsy ranks on tags. Shopify ranks on meta. We rewrite each listing to match — automatically. You're not pasting the same eBay title into four boxes and hoping.
One Inbox for Orders, Messages, and Feedback
Every order, buyer message, and review from all five channels lands in one screen. Close 14 browser tabs. Run the whole operation from one place.
From eBay Only - to Multichannel
what your first quarter actually looks like
Connected.
Plug in your accounts and import your eBay catalog. Most sellers are fully imported within 60 seconds.
Live on 3+ platforms.
Push your catalog to Amazon, Shopify, Walmart, and Etsy. First cross-channel sale typically lands within 7 days.
Zero overselling.
Inventory syncs in under 30 seconds across every platform. No more refunds. No more angry customers.
+47% revenue.
Average seller hits a 47% revenue lift in 90 days. Same products, same effort, more channels — more sales.
Join over 5,000+ merchants who use 3Dsellers' eBay selling manager to skyrocket sales, customer satisfaction, and brand recognition!
50%
Seller Score increase with Feedback Reminder
25%
Boost in repeat buyers with Auto Messages
15%
Sales increase with Best Offers Manager
Excellent
Craig B.
My overall experience has been...
My overall experience has been great. 3Dsellers has simplified my eBay operations and helped me stay organized. The platform feels stable, support is responsive, and automation tools make daily work faster and more efficient. It’s a reliable choice for anyone managing multiple listings or stores.
Jorge M.
Great experience: reliable platform...
We’ve had a great experience with 3Dsellers. It’s been a dependable platform for improving our eBay workflow—especially listing and order management—and it saves us a lot of time. Their customer support is professional and genuinely helpful. Highly recommended for serious eBay sellers.
Jim Colman
3Dsellers Checks All the Important Boxes
My overall experience has been exceptional. On top of the quality software product, the customer service goes above and beyond. On more than one occasion, I've gotten responses and fixes to glitches even when I'm contacting the company outside normal business hours. As I find little bugs or opportunities to correct something in the software, the team responds with a fix usually within hours. I could not be more pleased with the support this company gives to their excellent product.
Join 50,000+ sellers already selling on multiple channels with 3Dsellers.
Join 50,000+ Multichannel Sellers Already Selling Across eBay, Amazon, Shopify, Walmart & Etsy
Don’t just take our word for it—leading sellers who use 3Dsellers:
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9.1K Followers
99.9% Positive feedback
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ATV Galaxy is one of the top sellers of parts and accessories on eBay, carrying only the best brands at the best prices.
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The Perfect Part, Inc. offers integrated business solutions for mobile phones and other electronics. Their goal is to create the best hospitality, simplicity, and flexibility possible.
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Expand to More Marketplaces Today
Everything you need to list faster, rank higher, and sell more — included in every plan.
Open ChatOrSchedule a Demo
Open ChatOrSchedule a Demo
Open ChatOrSchedule a Demo
Which marketplaces are supported?+
eBay, Amazon, Shopify, Walmart, Etsy, WooCommerce, BigCommerce, and more. Manage all your stores from a single dashboard.
How does inventory sync work?+
In real time. When a sale happens on any channel, stock updates everywhere within seconds — no overselling, no manual updates.
Can I import my existing eBay catalog?+
Yes. Connect your eBay account and your full catalog imports automatically — ready to cross-list to Amazon, Shopify, and other channels.
How long does setup take?+
About 5 minutes per channel. Connect your account, the system pulls your listings, and you're live across all marketplaces.
Do I need separate accounts for each marketplace?+
Yes — you keep your own seller accounts on each platform. 3Dsellers connects to them and manages everything from one place.
How are orders managed?+
All orders from every marketplace land in one unified dashboard. Print labels, ship, and track from a single place.
Is there a free trial?+
Yes. 7-day free trial — no credit card required. Cancel anytime, no questions asked.
Can I cancel anytime?+
Yes. Cancel from your account settings — no commitment, no fees, no headache.
Join 50,000+ sellers already selling on multiple channels with 3Dsellers.
Frequently Asked Questions
Everything you need to know about selling across multiple channels with 3Dsellers.
Which marketplaces are supported?+
eBay, Amazon, Shopify, Walmart, Etsy, WooCommerce, BigCommerce, and more. Manage all your stores from a single dashboard.
How does inventory sync work?+
In real time. When a sale happens on any channel, stock updates everywhere within seconds — no overselling, no manual updates.
Can I import my existing eBay catalog?+
Yes. Connect your eBay account and your full catalog imports automatically — ready to cross-list to Amazon, Shopify, and other channels.
How long does setup take?+
About 5 minutes per channel. Connect your account, the system pulls your listings, and you're live across all marketplaces.
Do I need separate accounts for each marketplace?+
Yes — you keep your own seller accounts on each platform. 3Dsellers connects to them and manages everything from one place.
How are orders managed?+
All orders from every marketplace land in one unified dashboard. Print labels, ship, and track from a single place.
Is there a free trial?+
Yes. 7-day free trial — no credit card required. Cancel anytime, no questions asked.
Can I cancel anytime?+
Yes. Cancel from your account settings — no commitment, no fees, no headache.