Delivery Slots Checker is a free Chrome add-on developed by danmu. This add-on falls under the Browsers category and specifically the Add-ons & Tools subcategory. The program aims to help users find available delivery slots on Amazon Fresh, Prime Now, Costco, and Instacart.

With Delivery Slots Checker, users can easily check the availability of delivery slots on the checkout page without having to constantly monitor the page themselves. The add-on periodically checks the page in the background, eliminating the need for users to stay on the page.

Once a slot becomes available, users will receive a notification, ensuring that they never miss out on a delivery window. This feature is particularly useful during times of high demand or limited availability, allowing users to secure their preferred delivery slots quickly and conveniently.

Delivery Slots Checker provides a seamless and efficient solution for those who rely on online grocery delivery services. With its ability to check multiple tabs in the background, users can save time and effort while ensuring they can get their essential items delivered when they need them.