Carbolt | The Digital Carbon Footprint Calculator

Track your browsing carbon footprint. Monitor CO₂ emissions, power consumption, and environmental impact from your browser activity.

As of June 2026, Carbolt | The Digital Carbon Footprint Calculator has 31 users and a 5.00/5 rating from 3 reviews in the Productivity category.

Usersup 40.9 percent+40.9%
31
31
Ratingno change0%
5.00
3 reviews
Reviewsno change0%
3
Version
2.7
Manifest V3

History

7 snapshots

Tracking since Apr 1, 2026.

32.0424.516.96Apr 1, 2026Jun 5, 2026
View as table
DateUsersRatingReviewsVersion
Apr 1, 2026225.0032.7
Apr 8, 2026215.0032.7
Apr 22, 2026245.0032.7
May 2, 2026185.0032.7
May 10, 2026195.0032.7
May 18, 2026295.0032.7
Jun 5, 2026285.0032.7
Now315.0032.7

Permissions & access

Permissions
storagewebRequestidletabsfavicon
Host access
<all_urls>

Screenshots

Carbolt | The Digital Carbon Footprint Calculator screenshot 1

About

See the real environmental cost of every page you open with Carbolt, a lightweight Chrome extension that tracks live CO₂ emissions and energy use as you browse. Get location‑aware numbers based on your local electricity grid and air quality so your stats are grounded in real‑world impact, not generic averages.​

Start and pause tracking for focused work sessions or Netflix binge watch and spot your worst‑offender sites instantly with clear charts and trends. Explore fun (and scary) real‑world comparisons that translate kilowatt‑hours and grams of CO₂ into things you understand, like meals or water, so motivation feels natural.​

- Live CO₂ and energy tracker for every page, tab, and session.​

- Location‑smart emissions using your local grid intensity and air‑quality data.​

- One‑click start/pause for work, study, or streaming sessions.​

- Charts and history that highlight high‑emission, heavy websites you can quickly optimize away.​

- Fun, memorable real‑world comparisons to make your digital carbon footprint feel tangible.​

- 100% local and private: no sign‑ups, no trackers, no data leaves your browser.​

Install Carbolt today, so every tab becomes a chance to shrink your digital carbon footprint instead of silently growing it because the internet isn't weightless. 🌱

Version History - 
2.0: Added dashboard, streaks, better UI and more
1.0: Product Launch

Technical

Version
2.7
Manifest
V3
Size
270KiB
Min Chrome
88
Languages
1
Featured
Yes

Metadata

ID
nihkkhefdoijdmghbmdfmfghnmnenofp
Developer ID
u15e6b5c2881cfe7e5ebc33e98f7ed50b
Developer Email
[email protected]
Created
Dec 2, 2025
Last Updated (Store)
Jan 4, 2026
Last Scraped
Jun 5, 2026
Website
Support URL

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Data sourced from the Chrome Web Store · last verified Jun 5, 2026.