Listelf (formerly Crosslist Magic)
A browser extension that helps you crosslist between Amazon, Depop, eBay, Etsy, Facebook Commerce, Facebook Marketplace, Grailed, Instagram, Mercari, Poshmark, Shopify and Vinted.
Add to ChromeThe extension adds a little 
icon in the top left corner of your listings on supported platforms. Clicking on this crosslists the listing to other platforms:
