How to Cross-List to Poshmark, Mercari and Facebook Marketplace (Phone and Computer)

3:09 video

You priced the item and the listing is already written: title, description, price and photos. Here is how to put it on Poshmark, Mercari, Facebook Marketplace, Depop, Vinted, OfferUp and more without typing it again. eBay we publish for you. Poshmark, Mercari and Facebook do not let apps post, so we fill in the form or copy each field, and you tap Post. Nothing is posted there without you. Three ways, by device: Then tap Mark as listed with the listing link, so your inventory knows where the item is live.

On your phone, in the Underpriced AI app (version 2.4.0 and up): tap Open the form with my listing. The marketplace's own form opens inside the app with the title, price, description and photos filled in. You pick the category and size and tap Post. Works with Poshmark, Mercari, Facebook Marketplace, Depop, Vinted and OfferUp. On an Android phone browser, Firefox with our free add-on fills the form too.
On a computer: add the free Underpriced AI extension to Chrome or Edge (More, Settings, Apps & Extensions). On the item, pick the marketplace and click Copy & Open (Open Facebook for Facebook). The marketplace form opens in a new tab, filled in. You pick the category and click Post.
Anywhere: Copy it step by step. Save the photos first, then copy each field in the order the marketplace asks, with a tick for each one that stays put while you switch apps.

Try it on your own item

Your first scan is free, no card. Works on the web and in the iPhone and Android apps.

Scan your first item free

Chapters

Transcript

One item, every marketplace

You've priced an item and written the listing. Now let's put it on Poshmark, Mercari, Facebook Marketplace and more, without typing any of it again. The title, description, price and photos are already done from your scan. eBay lets us publish for you. Poshmark, Mercari and Facebook don't let apps post, so we fill in the form or copy each field, and you tap Post. There are three ways to do it, depending on your device. In the app on your phone. On a computer, with the free extension. Or anywhere, with Copy it step by step.

Start on the item

All three start in the same place. Open the item, scroll to Create Listing, and pick the marketplace. Change anything first, like the price. What's here is what gets copied.

Way 1: on your phone, in the app

On your phone, in the Underpriced AI app, version 2.4 or newer, tap Open the form with my listing. The marketplace's own form opens inside the app, with your title, price, description and photos filled in. The first time, sign in there as you normally would. Then pick the category and size, check it, and tap Post. It works with Poshmark, Mercari, Facebook Marketplace, Depop, Vinted and OfferUp. On iPhone, it's in the App Store now. On an Android phone's browser instead? The item page offers a shortcut. Get Firefox and our free add-on once, open the item there, and it fills in the form for you too.

Way 2: on a computer, with the extension

On a computer, add the free Underpriced AI extension to Chrome or Edge. The link is under More, Settings, Apps and Extensions. Then open the item, pick the marketplace, and click Copy & Open. For Facebook, the button says Open Facebook. The extension opens that marketplace's listing form in a new tab, and fills in the title, price, description and photos. You pick the category, check it, and click Post. It works on Facebook Marketplace, Poshmark, Mercari, Depop, Vinted, OfferUp, Whatnot, Etsy and more.

Way 3: anywhere, Copy it step by step

No app or extension? Copy it step by step works in any phone browser. It opens one screen for that marketplace, with your progress at the top. Photos first. Save them to your phone, then add them from your camera roll in the marketplace app. Then copy each field, in the order Poshmark's form asks. Condition is a pick on their form, so you tap I picked it. Every step gets a tick, and the ticks stay put while you switch apps. When you're ready, Open Poshmark at the bottom starts the listing there. Paste each field, and post it.

Mark it listed

Posted it? Tap I posted it, mark it listed. Paste the listing link, and tap Mark as listed. Now your inventory knows where it's live, and it's tracked in your analytics. The extension and the app fill work the same way: paste the link, and mark it listed. One listing, every marketplace, no retyping. Try it free on the web or in the app.