The only platform that locks your eBay and Depop listings before you go live on Whatnot, auto-delists in under 60 seconds, and shows you your real P&L across every marketplace.
Auto-Delist on Sale
Show Lock & Resume
Free Plan, No CC Required
If you sell on Whatnot AND eBay AND Depop, you know these pain points.
Cross-listing means double exposure. It also means double sales, suspended accounts, and angry buyers when the same item sells on two platforms at once.
After eBay fees, Whatnot commissions, shipping, COGS, and returns — most sellers can't tell their real margin. They know what they made. They don't know what they kept.
Whatnot payouts. eBay reports. Depop deposits. Your own expenses. Consolidating all of it into a single P&L for your accountant takes hours — and you're still guessing.
SellDeck automates the cross-listing safety net and profit tracking so you can focus on selling.
One click locks your eBay and Depop listings. No cross-listings can sell while you're live. Your audience has exclusive access.
Real-time sales feed with buyer names, amounts, and auto-delist across every marketplace. What sells stays sold. No double sales.
Unsold items restore automatically. Packing lists print by buyer. P&L updates in real time. Ready for tax season without the spreadsheet scramble.
Six tools that replace spreadsheets, polling tools, and accounting software.
Real-time webhooks pull listings from eBay and Depop in under 60 seconds when something sells. No 10-minute polling. No double sales. No account suspensions.
One click pauses your eBay and Depop before you go live. Unsold items restore automatically after. The only platform with this protection.
Upload a photo and AI generates a price estimate with real eBay sold comps. Know what your items are worth before you list.
Real-time revenue, orders, unique buyers, and a live sales feed during your Whatnot show. WebSocket-powered, sub-second updates.
Real P&L per item, per show, per platform. IRS Schedule C reports with automated line mapping. Cash or accrual accounting.
Track every item with photos, SKUs, cost basis, and categories. Bulk CSV import, QR labels, and mobile quick-add for sourcing trips.
Start free. Upgrade when you need more. No contracts, cancel anytime.
Free forever
Billed monthly
Billed monthly
Billed monthly
Real, verifiable claims. No invented testimonials, no padded numbers.
Common questions from resellers.
The moment an item sells on any connected marketplace, SellDeck receives a webhook. Within seconds, queued jobs end the eBay listing and mark the Depop listing as sold — in parallel. Etsy and Mercari sellers get a push notification because neither marketplace exposes a usable delist API. Result: no double sales, no suspended accounts, no angry buyers.
Vendoo's auto-delist is a BETA feature that polls your marketplaces every 10 minutes and requires your computer to be on. SellDeck uses real-time webhooks running server-side — sub-minute response, no PC required, production-ready, with an audit trail of every delist action. We also lock cross-listings during your Whatnot live shows, which Vendoo can't do at all.
SellDeck detects double-sales within seconds and files an incident in your Oversell Recovery Inbox. From there you get one-click actions: cancel the eBay order with the buyer notified automatically, mark a manual refund issued, or send a buyer message. Every incident is timestamped and audit-trailed.
SellDeck is reseller software that helps you prevent cross-listing oversells, track sales, manage inventory, calculate profit after fees, and generate tax reports — across Whatnot, eBay, and Depop. Replace your spreadsheets and unreliable polling-based tools with real-time, webhook-driven automation.
SellDeck integrates with Whatnot (payout imports and browser-extension sync), eBay (listings, sold comps, real-time order webhooks), and Depop (listing sync + recreate-on-resume). Etsy, Mercari, and Poshmark sellers get manual-action notifications.
Yes. Pro plans get Profit & Loss reports. Business plans add IRS Schedule C reports with automated line mapping and state-level tax breakdowns showing sales and tax collected by state — everything your accountant needs.
Cash basis counts costs when you buy items. Accrual counts costs when you sell them. SellDeck lets you choose your method and automatically calculates COGS and inventory valuation — important for accurate tax reporting.
Yes. The free plan includes up to 25 inventory items, 2 shows per month, and basic inventory management. Upgrade to Starter ($8.99/mo), Pro ($14.99/mo), or Business ($24.99/mo) when you need more — or save 17% with annual billing.
Lock your cross-listings, run the show, restore unsold items in one click, and know your real profit by morning — free to start, no credit card required.
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