Free widget
Add a live CO₂ counter to your website
One line of code, no sign-up, no tracking. Ideal for school pages, climate blogs, sustainability reports and event screens.
Get the code
Choose a theme, copy the code and paste it into your page’s HTML where you want the counter to appear.
How it works
- Shows CO₂ emitted worldwide so far this year, updating several times a second.
- Uses the Global Carbon Budget 2025 figure of 42.2 billion tonnes a year (about 1,338 tonnes per second). See how the counter works.
- Resizes to fit: works from about 260 px wide. A height of 160–180 px fits best.
- No cookies, no analytics, no third-party scripts, and calm motion for visitors who prefer reduced motion.
Please keep the credit link. It’s how the counter stays free, and it lets your readers explore the full data, including emissions by country.
Questions and answers
Is the CO₂ counter widget free?
Yes. The widget is free for any website, including schools, blogs, businesses and non-profits. Please keep the small credit link.
Does the widget track visitors or use cookies?
No. The widget is a small static page with a few lines of JavaScript. It sets no cookies and loads no analytics or third-party scripts.
Where do the widget’s numbers come from?
It uses the Global Carbon Budget 2025 estimate of 42.2 billion tonnes of CO₂ a year (fossil fuels plus land-use change), spread evenly over the year: about 1,338 tonnes per second.