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Website Carbon Impact Optimisation

Chrome extension by Hum & Whistle · Productivity · Developer

A Chrome extension in Productivity · Developer with 24 users, barely installed. Audience over the last 30 days: +17.

Specific sites only: 1 match pattern.

What the developer says, and 4 screenshots

Loading from the Chrome Web Store. Open the listing if it does not appear.

Users
24
Rating
not rated yet
Users, last 30 days
+17
Version
1.0.3
Updated in the store
2026-07-01
Published
2026-06-12
Manifest
V3
Browser access
3 permissions, 1 site pattern

How it has moved

Users
+17 since 02.10
7-25 · 14 readings
  1. 2026-10-0817
  2. 2026-10-0918
  3. 2026-10-1017
  4. 2026-10-1316
  5. 2026-10-168
  6. 2026-10-187
  7. 2026-10-198
  8. 2026-10-219
  9. 2026-10-228
  10. 2026-10-239
  11. 2026-10-248
  12. 2026-10-2716
  13. 2026-10-2925
  14. 2026-11-0124
Users
+20 since 01.09
0-25 · 28 readings
  1. 2026-09-014
  2. 2026-09-035
  3. 2026-09-056
  4. 2026-09-067
  5. 2026-09-0715
  6. 2026-09-0816
  7. 2026-09-1015
  8. 2026-09-130
  9. 2026-09-158
  10. 2026-09-166
  11. 2026-09-208
  12. 2026-09-217
  13. 2026-09-268
  14. 2026-09-287
  15. 2026-10-0817
  16. 2026-10-0918
  17. 2026-10-1017
  18. 2026-10-1316
  19. 2026-10-168
  20. 2026-10-187
  21. 2026-10-198
  22. 2026-10-219
  23. 2026-10-228
  24. 2026-10-239
  25. 2026-10-248
  26. 2026-10-2716
  27. 2026-10-2925
  28. 2026-11-0124

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

Specific sites only: 1 match pattern.

  • https://api.thegreenwebfoundation.org/*
  • See the address and title of every tab you have open tabs
  • Run its own code on the pages it can access scripting
  • Act on the current tab, but only after you click it activeTab

The full permission history for this extension

What changed recently

Nothing has moved on this listing since we started watching it.

The publisher

Hum & Whistle publishes 2 listings we track, 51 users between them.

  1. HALO SEO — AI & LLM Page Analyser Hum & Whistle · Productivity · Developer · published 2026-06-12 27 users

Like this one

Listings the catalog judges closest in what they say they do.

  1. EcoLens — Website Carbon Footprint Describes nearly the same job, smaller audience 5 users
  2. Carbonlite — Website Carbon Footprint Describes nearly the same job, smaller audience 4 users (last published figure)
  3. EcoPage by Oren Describes nearly the same job, smaller audience 3 users (last published figure)
  4. GreenTrackR Describes nearly the same job, smaller audience 225 users ★ 5.0
  5. PageLens Describes nearly the same job, smaller audience 15 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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Users and rating on Ext Ops Panel

Markdown

[![Users and rating on Ext Ops Panel](https://extops.dev/extensions/nhehjheofaclopfgkgnmdfjimhgijiil/badge.svg)](https://extops.dev/extensions/nhehjheofaclopfgkgnmdfjimhgijiil)

HTML

<a href="https://extops.dev/extensions/nhehjheofaclopfgkgnmdfjimhgijiil"><img src="https://extops.dev/extensions/nhehjheofaclopfgkgnmdfjimhgijiil/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 2026-11-01. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built