Carbon-Calculator
Chrome extension by jonathangrinstead.design · Productivity · Tools
A Chrome extension in Productivity · Tools with 46 users, barely installed. Audience over the last 30 days: +3.
Every site you visit. This extension can read and change the content of any page you open.
What the developer says, and 2 screenshots
Loading from the Chrome Web Store. Open the listing if it does not appear.
- Users
- 46
- Users, last 30 days
- +3
- Version
- 1.0
- Updated in the store
- 2025-01-21
- Published
- 2025-01-21
- Manifest
- V3
- Browser access
- 3 permissions, 3 site patterns
How it has moved
- 2026-10-1640
- 2026-10-1843
- 2026-10-1942
- 2026-10-2145
- 2026-10-2240
- 2026-10-2341
- 2026-10-2440
- 2026-10-2739
- 2026-10-2943
- 2026-11-0146
- 2026-11-0348
- 2026-11-0546
- 2026-11-0747
- 2026-11-0845
- 2026-11-1046
- 2026-11-1146
- 2026-09-0143
- 2026-09-0345
- 2026-09-0442
- 2026-09-0641
- 2026-09-0840
- 2026-09-0943
- 2026-09-1544
- 2026-09-1643
- 2026-09-2042
- 2026-09-2543
- 2026-09-2642
- 2026-09-2841
- 2026-10-0444
- 2026-10-0843
- 2026-10-0944
- 2026-10-1143
- 2026-10-1640
- 2026-10-1843
- 2026-10-1942
- 2026-10-2145
- 2026-10-2240
- 2026-10-2341
- 2026-10-2440
- 2026-10-2739
- 2026-10-2943
- 2026-11-0146
- 2026-11-0348
- 2026-11-0546
- 2026-11-0747
- 2026-11-0845
- 2026-11-1046
- 2026-11-1146
A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing up to 2 times a day and record a point only when something moves. History beyond ninety days is in the app.
What it can reach
Every site you visit. This extension can read and change the content of any page you open.
-
Watch the network requests your browser makes
webRequest -
Run its own code on the pages it can access
scripting -
Act on the current tab, but only after you click it
activeTab
What changed recently
Nothing has moved on this listing since we started watching it.
The publisher
Like this one
Listings the catalog judges closest in what they say they do.
-
Carbon Footprint Calculator 16 users
-
Carbolt | The Digital Carbon Footprint Calculator 44 users
-
EcoLens — Website Carbon Footprint 7 users
-
Sustainable Browsing Carbon Calculator 4 users
-
Pebble - Digital Carbon Emissions Calculator 1k users
The top 5 only. The full comparison, with why each one is close, is on the alternatives page; ranking a whole neighbourhood by your own criteria is in the app.
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Connect it to Ext Ops Panel and see installs, uninstalls and uninstall reasons as events arrive, not as a weekly summary.
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The badge shows the audience and rating from our last pass over the store and links back to this page.
[](https://extops.dev/extensions/ninolaciljboekieplbkpgeafghijfho)<a href="https://extops.dev/extensions/ninolaciljboekieplbkpgeafghijfho"><img src="https://extops.dev/extensions/ninolaciljboekieplbkpgeafghijfho/badge.svg" alt="Users and rating on Ext Ops Panel" height="20"></a>Figures come from our own regular passes over the public Chrome Web Store listing, last read on . The store last changed these figures on 2026-11-10. We publish no contact details for extension developers.