Best Crosslisting App for Resellers

You know how many sales you’re missing by only selling on one marketplace?

With Sidekick Tools, the best crosslisting app for resellers, you can crosslist items on 7 marketplaces in under 5 minutes. That’s roughly 30 seconds per listing!

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Sync Your Listings Across Seven Marketplaces

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Poshmark

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Mercari

eBay circle logo

eBay

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Grailed

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Whatnot

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Etsy

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Depop

Sidekick Tools Crosslisting App Features

1

Inventory Management

Stay on top of your business with real-time inventory updates across all marketplaces. Manage your entire inventory from the Sidekick Tools app—no more juggling spreadsheets or guessing what’s available.

2

Auto Delist & Relist

Say goodbye to duplicate listings and overselling headaches. With Sidekick Tools auto delist and relist features, sold items disappear instantly while unsold products get a second chance to shine.

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Automatic Auctions

Turn on the autopilot for your Poshmark Silent Shows. Sidekick Tools automatic auctions feature schedules, runs, and tracks your auctions—monitoring views, bids, and sales.

4

Bulk Listing Editing Tools

Save hours with bulk listing editing tools. Update prices, tweak descriptions, and optimize titles of multiple listings at once. The Sidekick Tools “SmartFill” feature makes mass edits quick, accurate, and effortless.

5

Product Photo Editing Tools

Level up your product listing photos without expensive gear. Remove photo backgrounds in seconds with built-in photo editing tools and create professional-grade product shots using AI Stock Photo Creator.

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Sales Tracking

Track and analyze your sales across all marketplaces from one app. From sales revenue to listing performance, Sidekick Tools gives you the clarity to scale smarter and sell more.

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What Resellers Say About Sidekick Tools Crosslisting App

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"I used to avoid selling on more than two marketplaces because it was just too much work. With the Sidekick Tools crosslisting app, I’ve expanded to almost all major marketplaces and noticed way more sales coming. It’s like having an assistant working 24/7 for me."

Ray Hayes

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"I recently bought the basic crosslisting plan, and it’s absolutely worth my money. I can cross-post my items across nine marketplaces, do relisting, and even run automatic auctions. The AI photo editing tools are a huge bonus—my listings look so much more professional now. It’s the perfect all-in-one tool for resellers."

Melissa Lowry

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“This app makes cross-listing so simple. I’m not the most tech-savvy person, but the app is super easy to use, and the features are just amazing. I’ve been able to grow my sales on Poshmark, Depop, and Etsy faster than I expected thanks to Sidekick Tools.”

Coleen Galvan

Frequently Asked Questions (FAQs)

Which marketplaces does Sidekick Tools Support?

Right now, Sidekick Tools crosslisting app supports 9 marketplaces that include Poshmark, eBay, Etsy, Depop, Mercari, WhatNot, Grailed, Vinted, and Shopify, with more marketplaces coming next.

Can I edit or optimize my product listings for different marketplaces with Sidekick Tools?

Yes! With Sidekick Tools, you can easily edit and optimize your product listings for each marketplace. You can customize listing titles, descriptions, prices, and other details for each marketplace.

What makes Sidekick Tools the best crosslisting app?

The Sidekick Tools crosslisting app supports 9 major marketplaces with more marketplaces to be added soon. Also, there is a bulk editing tool within the Sidekick Tools app that lets you update details of multiple listings simultaneously before crosslisting them. In addition, the Sidekick Tools app comes with free auto delisting and relisting features, along with automatic auctions, AI stock photo creator, image background remover, and sales report generator.