What is CO2.js?
One day, the internet will be powered by renewable energy. Until that day comes, there’ll be a CO2 cost that comes with every byte of data that’s uploaded, downloaded or stored. By being able to calculate these emissions, developers can be empowered to create more efficient, lower carbon apps, websites, and software.
Curious about driving the transition to a fossil-free internet? Here’s how CO2.js can help goes in depth about the concepts behind CO2.js, it’s uses, and when other tools might be better options to consider.
Resources for developers
Start calculating digital carbon emissions in 5 minutes with CO2.js
For more in depth guidance refer to our developer documentation.
If you’d like to view our open source repo, you can see it in GitHub.
Here’s a few stories of how companies and individuals in are using CO2.js in real world applications today.
If you’re using CO2.js in production we’d love to hear how! Drop us a line.
In this case study, we explore how the Sitigreen website carbon calculator uses CO2.js to perform website carbon calculations that are specific to Italian users.
In 2023, the Mozilla introduced carbon emissions estimates into its developer tooling. This case study explores how the Mozilla team and Green Web Foundation members made this possible using CO2.js.
Step CI is a testing and monitoring tool for APIs. In this case study, we look at how they introduced carbon emissions estimates using CO2.js.