STOCKchckr is a free Chrome add-on developed by amidart. It falls under the category of Browsers and specifically the subcategory of Add-ons & Tools. This program allows users to check the in-stock quantities of popular products at Walmart, Target, Toys R Us, Walgreens, and CVS stores across the United States.

Gift buyers and online sellers can benefit from using STOCKchckr as it provides an easy way to check the availability of hot products in stores. The add-on allows users to search for products on a map, giving them the option to search within a specific region or the entire country. Users can also create a shopping list and sort it by store, ensuring they have a buy list for each physical store location.

One of the key highlights of STOCKchckr is its commitment to privacy. The add-on does not collect or store any personal information, ensuring users' privacy and security.

Overall, STOCKchckr is a useful tool for those who want to stay updated on the availability of products at popular stores. Its simple interface and privacy-focused approach make it a reliable choice for gift buyers and online sellers.