⭐ Get started with a 3-day free trial
Lighter pages convert better, load faster—and even have a smaller carbon footprint.
Measure and optimize your website with just a few clicks!
Webpage Carbon Scanner is a Chrome extension that’s easy to use for anyone: it instantly shows the carbon footprint and energy consumption of the currently viewed webpage, identifies oversized images, and lets you optimize them—right from where you’re working.
Built-in image optimization
Instant reduction results with just a few clicks.
Instant measurement wherever you are
See the results for the current page right in your browser.
Impact
modeling
Quantified CO₂e and energy savings so you can see the big picture.
No-code
solution
Optimization without developer intervention.
Measure the page
Open the webpage you want to analyze, then launch the Chrome extension.
See if it could
perform better
Examine the page’s size, CO₂e and energy impact, as well as image-level optimization opportunities.
Optimize
Identify oversized images and reduce their size with a single click.
Measurement and optimization in a single tool.
HOW IT WORKS
WHO IS IT FOR?
Built for people who publish webpages — not only developers.
You do not need to open DevTools or run a technical audit to spot the biggest page-weight problems.
✅ Content editors
✅ Ecommerce teams
✅ Marketers
✅ Bloggers
✅ Online journalists
✅ Website owners
✅ Agencies
✅ Sustainability & ESG teams
👉 Developer-friendly: useful as a quick pre-publication QA check before deeper performance work.
FREE TRIAL
Give it a try and help us shape the product!
We're offering free access for a limited time.
In exchange, by answering a few short questions, you can help ensure that Webpage Carbon Scanner is grounded in real-world workflows.
3-day
free access
Measure real websites (up to 10 URLs/day)
Quick, built-in
feedback
Requests will be accepted subject to available capacity.
PLANS
From personal use to enterprise deployment.
🔒 We'll finalize the packages, their contents, and conditions based on what we learn during the trial period. You have a say in this — so make the most of it!
👉 Contact us so we can create a customized package based on your needs.
ABOUT CARBON.CRANE
Digital efficiency, measurable environmental impact
Carbon.Crane’s team helps its partners reduce the environmental impact of their digital operations by improving efficiency and digital performance.
Webpage Carbon Scanner is the latest addition to this digital sustainability product portfolio, offering tangible optimization opportunities at the webpage level. Our solutions are based on an ISO 14067-compliant approach validated by Bureau Veritas and cover the measurement, monitoring, and optimization of websites, emails, and mobile applications. We share our practical experience with interested audiences through our CarbonClass educational program. The interactive workshop is also part of the curriculum for the accredited ESG consultant micro-credential training program at Corvinus University of Budapest.
We work with partners across multiple sectors
The development of the Webpage Carbon Scanner is supported by the One Foundation as part of the “One Digital Award” program.
Be among the first
Get started for free and improve digital operations.
Sign up
Enter a few details so we can grant you access to the tool and configure the domain you want to analyize.
Wait for confirmation
Once we've processed your registration, we'll send you an email confirming that your user account has been created.
Install and log in
Install the extension from the Chrome Web Store and log in with your email and password.
Scan and give feedback
Run up to 10 scans a day for 3 days with unlimited image reduction. In return, we only ask for short feedback within the extension.
Requests will be accepted subject to available capacity.
FAQ