Green Web Foundation

The Green Web Foundation is an independent non-profit working towards a fossil-free internet by 2030. It tracks how much of the internet runs on green energy and helps organisations understand and reduce the environmental impact of their digital products. Its tools include a website checker and an open dataset that let users assess whether a website is powered by green energy and review public evidence behind related claims. Developers can also use CO2.js, an open-source JavaScript library for estimating emissions from apps, websites and software, while Carbon.txt provides a standard place for companies to publish machine-readable sustainability information.

The foundation offers free green hosting verification for providers using green energy, with verified services included in its widely accessed dataset. It also delivers training and workshops on digital sustainability and carbon estimation, alongside briefings on topics such as AI’s environmental impacts. Through reports, publications, Branch Magazine, collaborative projects and open-source tools, the organisation supports research, practical action and advocacy for a more sustainable and just internet.