マジックショップ在庫チェッカー is a free Chrome add-on developed by muni62pj. This add-on provides a user-friendly way to check the availability of items in magic shops. It displays the inventory status using three symbols: ◯ for available, for unavailable, and △ when both available and unavailable items are mixed.

Currently, this add-on only supports the French Drop magic shop. It allows users to quickly determine whether a particular item is in stock or not.

It is important to note that マジックショップ在庫チェッカー does not collect or store any user input or search history. It prioritizes user privacy and ensures that no personal information is retained by the extension.