CO2estimeter
Web extension for estimating the CO2 emissions of browsing activity
As of June 2026, CO2estimeter has 9 users in the Education category.
Usersup 50.0 percent+50.0%
9
9
Ratingno change0%
—
— reviews
Reviewsno change0%
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Version
1.0.6
Manifest V3
History
3 snapshotsTracking since Apr 19, 2026.
View as table
| Date | Users | Rating | Reviews | Version |
|---|---|---|---|---|
| Apr 19, 2026 | 6 | — | — | 1.0.6 |
| May 4, 2026 | 6 | — | — | 1.0.6 |
| Jun 3, 2026 | 6 | — | — | 1.0.6 |
| Now | 9 | — | — | 1.0.6 |
Permissions & access
- Permissions
- tabsstorage
- Host access
- None declared
Screenshots
About
Get an estimate of the CO2 emissions of your web browsing activity based on the the Sustainabale Webdesign Model v4 (https://sustainablewebdesign.org/estimating-digital-emissions/). The model uses the number of bytes that are transferred when loading a web page, to estimate the associated cabon footprint. CO2estimeter monitors the transfer sizes of web pages, via the browser's Performance API, and computes carbon emissions from that with the formulas of the Sustainable Webdesign Model v4. You can find more information on the extension's GitHub page (https://github.com/alexzurbonsen/co2estimeter). If you encounter bugs, please also visit the GitHub page and file an issue. Much appreciated.
Technical
- Version
- 1.0.6
- Manifest
- V3
- Size
- 1.58MiB
- Min Chrome
- 88
- Languages
- 1
- Featured
- No
Metadata
- ID
- aibcdpalocgkmfekiolmbhgnbckgdbgo
- Developer ID
- ud62830275f82e0bed8d1eeb0aea13480
- Developer Email
- [email protected]
- Created
- Oct 31, 2024
- Last Updated (Store)
- May 3, 2025
- Last Scraped
- Jun 3, 2026
- Website
- —
- Privacy Policy
- —
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Data sourced from the Chrome Web Store · last verified Jun 3, 2026.