Best Free Crosslisting App for Resellers (2025)

Reselling on multiple online marketplaces is indeed a good idea, as it helps you multiply your profits by literally selling the same items. However, managing listings across different marketplaces takes serious time and effort.

Crosslisting apps solve this problem by enabling you to list items to multiple marketplaces at once. But, when it comes to crosslisting apps, many online resellers struggle to find the right balance between features and pricing.

There are pricey crosslisting apps that offer advanced tools but can eat into your profit margins and there are apps that offer free crosslisting credits to provide a smart starting point for new resellers.

In this blog, we are going to review and compare the best free crosslisting apps that are available in 2025 to find out which crosslisting app offers the best value.

We’ll compare the crosslisting apps based on their features, limitations, and which marketplaces they support. So, let’s begin!

What is a Crosslisting App?

A crosslisting app helps online sellers list their items on multiple online marketplaces at once.

Instead of typing the same product details and uploading the same product photos over and over again, the crosslisting software or app saves time by automating that redundant work.

With a crosslisting app, you create a primary listing with all your item details. Then the app sends listing details to all your selected online marketplaces with just a few taps, creating the listing automatically on all those marketplaces without any manual process.

What to Consider When Choosing the Best Crosslisting App?

Marketplace Compatibility and Integration

The first thing you need to check when choosing the best crosslisting app is which online marketplaces the app supports.

You should look for a crosslisting app that works with the marketplaces you are already selling on or planning to sell on.

For instance, if you are a clothing reseller, you should choose a crosslisting app that supports all major marketplaces like eBay, Poshmark, Mercari, Depop, Etsy, and Vinted where pre-loved clothing is being sold.

There are crosslisting apps that support 5 marketplaces, while others support 10 or even more marketplaces. Make sure the crosslisting app you choose syncs with the primary marketplace you are selling on.

You should also consider how well the app integrates with each marketplace. The best crosslisting apps maintain real-time connections that update your inventory automatically across all marketplaces.

Also, check if the crosslisting app you are considering using adds new marketplaces regularly.

Listing Management Features

Good crosslisting apps offer more than just crossposting items to multiple marketplaces.

Look for an app that helps you manage your entire inventory from one single screen. This includes editing listings, updating prices, and tracking which items are listed on which marketplace.

Also, the crosslisting app should let you customize listings for different marketplaces since each marketplace has unique requirements and audience preferences.

For example, the title length limits and category options vary between eBay and Poshmark.

Listing management also includes bulk editing tools that let you update multiple items at once. This becomes important as your inventory grows and you need to make quick changes across all your listings.

Pricing & Value for Money

Most crosslisting apps offer different pricing plans based on the number of listings or marketplaces you are selling on. So, when choosing the best crosslisting app compare the pricing against the time you save.

If you spend five hours manually crosslisting ten items that an app can do in ten minutes, the app fee will pay for itself quickly.

Also, look for crosslisting apps that offer free trials so you can test the features before committing to a paid plan.

Beyond the basic subscription cost, consider any hidden fees for extra features. Some apps charge additional fees for premium marketplaces or advanced automation features.

User Interface & Ease of Use

The crosslisting app’s interface should feel intuitive and easy to navigate, even for beginners.

A cluttered or confusing dashboard makes simple tasks take longer and increases the chance of mistakes. Look for a crosslisting app with a clean UI and clearly labeled buttons and menus.

Check how easy it is to create and edit listings within the app. The process should feel straightforward. Good crosslisting apps also provide templates or suggestions to speed up the listing creation process.

Analytics and Sales Tracking

Understanding which marketplace is bringing you the most sales helps you focus your efforts effectively.

Always choose a crosslisting app that provides detailed analytics about your listing performance across different marketplaces. This data shows you where to spend more time and energy.

Good analytics include information about sales, listings, and revenue. Performance tracking should also monitor your seller metrics on each platform to avoid account issues that could hurt your reselling business.

Automation and Time-Saving Features

Advanced automation features distinguish premium crosslisting apps from basic ones.

It’s better to look for a crosslisting app like Sidekick Tools which also has features like automatic delisting of sold items, relisting of items that haven’t been sold in a while, and automatic auctions.

If you are also getting these automation features with the crosslisting app, it will make your life as a reseller easy and will also save plenty of your time.

Security and Data Protection

Your business data and customer information need strong protection. So, always choose a crosslisting app that uses secure connections and encrypts sensitive information like login credentials and other data.

Check whether the app stores your marketplace login information and how it protects these credentials. Some apps use secure token-based authentication that doesn’t require storing your actual passwords.

Read the privacy policy to understand how the app handles your data and whether they share information with third parties. This becomes especially important as your reselling business grows and you sell to more buyers.

Scalability for Business Growth

Choose a crosslisting app that is scalable and can grow with your reselling business.

What works for twenty listings per month might not handle hundreds of listings. Look for crossposting apps that offer higher-tier plans with increased limits and additional features.

Also, consider whether the crosslisting app can handle seasonal fluctuations in your inventory.

Many resellers experience busy periods during holidays or back-to-school seasons when they need to list many more items quickly.

Customer Support and Resources

Reliable customer support becomes important when you encounter technical issues or have questions about the crosslisting app features.

Always look for a crosslisting app that offers good customer support through channels like live chat, email, or phone support.

Quality support also includes helpful resources like video tutorials, written guides, and frequently asked questions sections. These resources let you solve common problems quickly without waiting for support staff.

Also Read: How to Make Money Reselling Online

Best Free Crosslisting Apps for Resellers

	Sidekick Tools	Crosslist	Vendoo	Prime Lister	Flyp	Resell Kit	Seller Aider
Supported Marketplaces	9	9	11	8	6	6	5
Mobile App for iOS & Android	✅	❌	✅	✅	❌	❌	❌
Web Version	✅	✅	✅	✅	✅	❌	❌
Listing Data Import	✅	✅	✅	✅	✅	✅	❌
Bulk Listing Editing Tools	✅	❌	✅	❌	❌	❌	❌
Inventory Management	✅	✅	✅	❌	❌	✅	❌
Auto Delisting	✅	✅	✅	✅	✅	✅	✅
Relisting	✅	✅	✅	✅	✅	✅	✅
Auto Auctions	✅	❌	❌	❌	❌	❌	❌
Send Offers to Likers	✅	❌	✅	✅	✅	❌	✅
Marketplace Sharing	✅	❌	✅	✅	✅	❌	✅
Sales Analytics & Reports	✅	❌	✅	❌	✅	❌	❌
Product Photos Editing & Background Removal	✅	✅	✅	❌	✅	❌	❌
AI Stock Photo Creator	✅	❌	❌	❌	❌	❌	❌
Live Chat Support	✅	✅	✅	✅	❌	❌	❌
Community Support	✅	❌	✅	❌	✅	❌	❌
Free Trial	✅	❌	✅	✅	✅	❌	✅
Free Crosslist	✅	❌	✅	❌	❌	✅	❌
Pricing	Starting from $9.99/month	Starting from $29.99/month	Starting from $8.99/month	Starting from $49.99/month	Starting from $9/month	Starting from $9.30/month	Starting from $12/month

Sidekick Tools (The Best Free Crosslisting App)

When it comes to the best free crosslisting app for resellers, there is no other crosslisting app in competition with Sidekick Tools.

We’re not a self-proclaimed best crosslisting app, we truly understand the needs of both beginner and pro resellers.

Truly Free Crosslisting App

Unlike other crosslisting apps that offer limited free trials or require credit card information, Sidekick Tools provides genuine free crosslisting for up to 50 items.

Also, you can manage your inventory across 9 different marketplaces without paying any monthly fee.

This means beginners can start their reselling journey without upfront costs, while experienced sellers can test the Sidekick Tools app risk-free.

The app doesn’t ask for your credit card details or bank account information. This no-strings-attached approach shows Sidekick Tools’ confidence in their product and respect for online resellers who want to try before they buy.

Supports All Major Marketplaces & Platforms

Sidekick Tools connects you to 9 major online reselling platforms, giving you access to millions of buyers. The app lets you crosslist on Poshmark, eBay, Depop, Mercari, WhatNot, Grailed, Etsy, Shopify, and Vinted.

This support for 9 marketplaces means you can reach buyers across multiple platforms with different buying preferences and budgets.

Whether you’re selling vintage clothing on Depop or designer items on Poshmark, you can manage your listings, inventory, and sales from the Sidekick Tools app, eliminating the need to juggle multiple apps or browser tabs throughout your day.

Advanced AI Features That Save Time

The built-in AI tools set Sidekick Tools apart from basic crosslisting apps.

The AI description writer within the Sidekick Tools app creates SEO-optimized product descriptions that are much better than what Poshmark or eBay AI description writer writes. This means your listings rank higher in search results, leading to more views and sales.

Also, there is an AI Stock Photo Creator within the Sidekick Tools app that will breathe life into your lackluster item photos and make your items sell quicker on online marketplaces.

In addition, the Sidekick Tools app has a free built-in background remover that you can use to remove background from your product photos in seconds.

These additional AI features are particularly useful for beginner resellers who may not have the budget for professional product photos.

Smart Automation Features

Apart from AI tools to optimize the quality of listings, the Sidekick Tools app also includes features like automatic delisting to prevent the headache of overselling across marketplaces when items sell.

The AI SmartFill feature within the Sidekick Tools app automatically fills listing fields like title, description, category, and size to eliminate hours of copy-pasting and manual listing creation.

There are also bulk editing tools within the crosslisting app that allow you to update multiple listings simultaneously. If you need to change prices or descriptions across platforms, you can do it all at once instead of editing each listing individually.

Mobile-First Design for Busy Resellers

Another thing that you’ll appreciate about the Sidekick Tools app as an online reseller is that it has productivity features that manage crosslisting, relisting, and sharing tasks, giving back valuable time.

The mobile app is designed for online resellers who work on the go, sourcing inventory at thrift stores, garage sales, or estate sales.

You can literally create product photos, write listing titles/descriptions, and crosslist items directly from your phone. The web version of the Sidekick Tools app is also available for resellers who are more fussy, giving them flexibility in how they manage their reselling business.

Why Every Reseller Should Choose Sidekick Tools?

For beginners, Sidekick Tools removes the financial barrier to starting a multi-platform reselling business. You can learn crosslisting strategies and build your reselling business without monthly subscription costs eating into your limited budget.

If you are a pro reseller, you can benefit from the time-saving automation and advanced AI features within the Sidekick Tools app to scale. Also, the comprehensive analytics and sales tracking help identify which marketplaces are getting the most sales and what items are selling the best.

The combination of being truly free, feature-rich, and user-friendly makes Sidekick Tools the clear choice for anyone serious about being successful in online reselling.

While other apps may offer similar features, none provide this level of functionality without asking for payment or credit card information upfront.

Frequently Asked Questions (FAQs)

What features should I look for in a crosslisting app?

The features you should look for when choosing a crosslisting app are:

1. Number of marketplaces it supports.
2. Inventory management.
3. Auto delisting.
4. Auto relisting.
5. Auto auctions.
6. Bulk listing editing tools.
7. Sales reports.
8. Product photo editing and background remover.
9. AI stock photo creator.
10. Mobile/web access.
11. Live customer support.

And you know what? Sidekick Tools offers all these amazing features in one app!

What is the best free crosslisting app for resellers?

The best free crosslisting app for resellers is Sidekick Tools. Not only it offers free crossposting of up to 50 items across 9 different marketplaces but it also enables you to edit and update your listings seamlessly across all marketplaces if you need to make a change.

Why should I buy Sidekick Tools’ crosslisting plan when I’m getting 50 crosslisting credits for free?

Sidekick Tools offers crosslisting of up to 50 items for free across 9 different online marketplaces. However, if you want to crosslist more items, you need to purchase one of the monthly crosslisting plans by Sidekick Tools.

What marketplaces can I crosslist to with Sidekick Tools?

With Sidekick Tools, you can right now crosslist to nine online marketplaces, including eBay, Poshmark, Depop, Mercari, Etsy, Vinted, Shopify, Grailed, and WhatNot, with more marketplaces coming soon.