GreenCheck

by GreenCheck · getgreencheck.com · Functionality & UI

Established publisherManifest V3 Free

View in Chrome Web Store Data as of 15 Oct 2026

GreenCheck is a browser extension that identifies websites running on green energy and does analysis on the site’s carbon emissions.

Users

−2 in 30 days

Rating

0.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#135K

#112K among extensions

Version

0.3.1

updated 6 Nov 2025

Users

monthly, 2 years

Latest, 15 Oct 2026: 27 usersMove the mouse over the chart for any month

Ratings count

monthly, 2 years

Latest, 15 Oct 2026: 0 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About GreenCheck

🌱 Key Features Instantly spot which websites are powered by green energy with a leaf icon (🌱). See details about the hosting provider and access a dropdown with public documentation on their green energy claims. Uses The Green Web Foundation’s verified dataset, ensuring reliable information on providers that actively reduce, avoid, or offset emissions from electricity use. Already on a website? Open the extension’s popup to check if it’s running on green energy. View the hosting provider, energy status, and supporting information—all in one place. Run a Carbon Analysis to calculate the emissions from reloading a page. Get an easy-to-read rating (A+ to F) comparing its carbon footprint against others. 🌱 About Us GreenCheck was founded in Scotland in June 2024 to make the invisible energy impact of the web easier to understand. Our mission: help people make more informed choices about the websites they visit and the energy sources powering them. We also care deeply about your privacy—your browsing history and personal data remain completely private. 🌱 Changelog July 2024 – v0.1.0: Beta release for early feedback. January 2025 – v0.2.0: New checkbox logo + dependency updates. September 2025 – v0.3.0: Faster performance + removed license key requirement.