If you’re still listing items manually on just one or two platforms, you’re leaving serious money on the table. Imagine Costco having only one location in the whole country…That’s exactly what you’re doing when you don’t crosslist.
And, with Sidekick Tools, you can instantly crosslist your inventory to 10 of the world’s top reselling marketplaces and reach thousands of buyers — all from your phone, in just a few taps.
Start crosslisting for FREE by installing the app. NO credit card required!
✅ List Once, Sell Everywhere
Crosslist to Poshmark, eBay, Mercari, Depop, Etsy, Kidizen, Vinted, Grailed, Shopify, and Whatnot.
✅ Auto-Delist Sold Items
Sidekick detects when your item sells and automatically removes it from every other platform.
✅ Bulk Crosslisting
Crosslist 50+ items across platforms in just minutes.
✅ AI Smart Fill
Our AI fills out your listing details automatically — no more copy-pasting for hours.
✅ Background Remover & Stock Photo Creator
Professional product photos with AI stock models.
For years, resellers avoided crosslisting because it was a nightmare to manage manually.
Every time an item sold, you had to rush to delist it from multiple platforms — or risk double selling, order cancellations, reduced closet score, and even suspensions, especially on strict marketplaces like eBay.
Managing inventory across different sites became overwhelming, stressful, and risky. That’s why so many sellers stayed stuck selling on just one platform. But Sidekick Tools has completely solved this.
Now, when your item sells on one platform, Sidekick automatically detects the sale and delists it from all other marketplaces — instantly, without you lifting a finger.
You get all the benefits of multi-platform selling with none of the old risks, stress, or manual work.
Crosslist 25 items for FREE to see how it works.
Relying on just one platform is one of the biggest mistakes resellers make today. If eBay or Poshmark suspends you tomorrow — or if a sudden algorithm change slows down your sales — your entire income could disappear overnight.
The reselling landscape is always shifting: platforms update rules, crack down on sellers, and even go out of business themselves. That’s why building a multi-platform business isn’t optional anymore — it’s essential.
You can think of crosslisting as your insurance policy in reselling. By crosslisting with Sidekick, your items continue to sell across Poshmark, eBay, Mercari, Depop, Etsy, Grailed, Vinted, Kidizen, Shopify, and Whatnot. If one door closes, there are nine others, keeping your business moving forward and your cash flow secure.
With Sidekick, you’re not just making more sales — you’re future-proofing your entire reselling business.
Tired of removing backgrounds from product images one by one?
Use Sidekick’s free image background remover to remove backgrounds from product photos in bulk.
It will help you clear out cluttered backgrounds in seconds.
It’s fast, it’s accurate, and it’ll make your product photos pop like professional studio shots!
