Footprint is a Chrome add-on developed by bobby that aims to help users make more informed buying decisions on Amazon by providing them with the carbon impact of various products. As a free tool, it offers a simple way to reduce your carbon footprint while shopping online.

The add-on works by displaying the carbon impact of the product you are viewing on Amazon, as well as suggesting other similar products that may have a lower carbon impact. This information allows users to compare products and choose ones that align with their environmental values.

Although Footprint is still in early development, it covers a limited number of products. The developer has focused on including the most popular product categories on Amazon and plans to expand the coverage based on user feedback and usage. If the suggestions provided by Footprint don't match the product you want to buy, you can provide feedback to the developer, who will use it to improve the add-on.

Overall, Footprint is a promising tool for conscious consumers who want to reduce their carbon impact while shopping on Amazon. With its simple interface and informative data, it empowers users to make more sustainable purchasing decisions.