Big Cartel offers a Related Products feature that automatically displays relevant items to shoppers while they browse a store. The feature is available to sellers on paid plans and surfaces product suggestions on product pages without any manual curation by the store owner.

According to Big Cartel's official help documentation (published February 2025), the Related Products feature is described as an 'intelligent feature that automatically showcases relevant items to your customers while they shop.' The specific matching mechanism (e.g., category-based rules, collaborative filtering, or machine learning) is not disclosed in available sources. The feature is consumer-facing, appearing on product pages to shoppers visiting Big Cartel stores.