Inventory & Cross-listing apps for Whatnot sellers

Keep stock in sync across Whatnot, eBay, Poshmark, TikTok Shop and more.

Universal listing form that publishes to many marketplaces

One inventory list that crossposts and syncs sales, including Whatnot (beta)

Odoo app that syncs Whatnot listings, live stock and orders

Exports card listings to a Whatnot-ready CSV, auction or Buy It Now

Exports Shopify products to a Whatnot-ready CSV

Inventory, labels and multi-channel listing for card sellers, incl. Whatnot

Two-way Whatnot cross-listing and inventory sync with your other stores

Cloud crosslisting and automation, with Whatnot on Crosslisting and Bundle plans

One catalog to crosslist and track inventory across many marketplaces

Card inventory and crosslisting with a Whatnot channel and auto-delist on sale

Automation bots and crosslisting for Poshmark, Mercari and Whatnot

FAQ

Can I sync Whatnot inventory with eBay?

Cross-listing tools copy listings between marketplaces and help delist sold items.

Is cross-listing allowed?

Check each marketplace policy; tools only automate what you could do by hand.

What should I compare?

Supported marketplaces, auto-delist, bulk editing and monthly price.