We work towards a fossil-free internet by 2030
The Green Web Foundation is an independent non-profit that tracks how much of the internet runs on green energy. Manage the environmental impact of your digital products. Apply best practices in digital sustainability. Advocate for a more sustainable and just internet.
Get Verified
Are you a hosting provider using green energy? Get verified for free. Your services will be listed in our Green Web Dataset — accessed millions of times a day.
WHAT WE DO
Dataset
Check if a website runs on 100% green energy. View public evidence of claims. Download our open dataset or use our API.
CO2.js
Estimate the carbon emissions of apps, website and software with our open source Javascript library.
Training
We deliver training and workshop sessions to support organisations at any stage of their digital sustainability journey.
Branch Magazine
A carbon-aware magazine written by and for people who dream of a sustainable and just internet for all.
Recipient of the Ars Electronica Award for Digital Humanity.
Latest issue: Issue 8: Finding Beauty in the Imperfect. A collaboration with Wholegrain Digital.
Carbon.txt
A single place on any domain – /carbon.txt – to discover and use public, machine-readable, sustainability data relating to that company.
Fellowship
Green Web Fellows work at the intersection of digital rights and climate justice. They learn together about what powers control the internet, and what we can do about it.
Green Screen Coalition
Connecting digital rights and climate justice practitioners and funders.
SUPPORTED BY
ESTIMATING DIGITAL CARBON EMISSIONS WORKSHOP
Are you a developer and want to learn more about the tools you can use for digital carbon estimation? Do you work on sustainability reporting but don’t know how to include digital carbon emissions? Then come to our hands-on two-hour online workshop!
Blog
- A *May* update on the first E.E.D. day in Europe
On this blog we’ve been written about the Energy Efficiency Directive, a European energy and transparency law a few times now. We’ve done this because… - Notes from Green IO Singapore 2025We’re big fans of the work Gael Duez has been doing with the Green IO podcast and conference series. So much so that we last…
- US State AI Laws: Opposing Federal PreemptionUpdate from May 19: Coverage of the joint letter on CNN. We, the Green Web Foundation, join many organizations committed to protecting civil rights, promoting…
Press
- Die Zeit: “Ist Surfen schmutziger als Fliegen?” (August 2023)
- Hosting Advice: The Green Web Foundation: Promoting a Fossil-Free Internet with Groundbreaking Green Initiatives (July 2023)
- Triple Pundit: It’s Time for the Internet to Become More Sustainable, Says New Coalition (April 2022)
- BBC Digital Planet: How Green Is Our Data? (November 2021)
- Zeit Online: “Ihr Cappuccino hat den gleichen CO₂-Fußabdruck wie zwei Stunden Zoom” (September 2021)
- Gizmodo: The Planet Needs a New Internet (August 2021)