Website Carbon is a free WordPress plugin designed to help users understand the carbon emissions associated with their web pages. By measuring the electricity consumption of websites, this tool provides insights into the environmental impact of online activities. It is part of the broader Website Carbon project, which aims to raise awareness about the energy usage of the internet, estimated at over 416.2TWh annually, surpassing the total consumption of the entire United Kingdom.

The plugin allows users to generate reports detailing the carbon emissions produced by their websites, enabling them to make informed decisions about how to reduce their environmental footprint. This is particularly beneficial for site owners who are conscious of their impact on climate change and wish to implement more sustainable practices in their digital operations.