Groceries Delivery Checker is a Chrome extension developed by Peter Ng. This free add-on tool falls under the Browsers category, specifically in the Add-ons & Tools subcategory. With the Groceries Delivery Checker, you can easily check for delivery availability on popular platforms such as Amazon Wholefood, Amazon Fresh, Instacart, and Costco (which also uses Instacart).

To use the extension, simply add the items you want to your cart and proceed to the checkout page. The Groceries Delivery Checker will take care of the rest. You can leave the checkout page open and continue working on other tabs or tasks. The toolbar's basket icon will turn green to indicate that the extension is enabled on that page.

When a delivery window becomes available, you will be notified with a rooster sound and a notification. At this point, you need to return to the checkout page and manually select the available delivery option and place your order. It's important to note that the tool does not automate the ordering process.