---
title: "Greyscale Gateway – Chrome extension stats, history and permissions"
description: "50 users, rated 5.00 by 2 people. Version 1.35, updated 2025-12-20. Requests 3 permissions."
url: "https://extensiontracker.com/extension/bgomimblkalmchlokgaccjnohdmlofei"
---

# Greyscale Gateway

Live in the Chrome Web Store.

- Users: 50
- Rating: 5.00 from 2 ratings
- Last checked: 2026-09-26 22:27 UTC
- Users gained in 7 days: – (needs a week of history)
- Users gained in 30 days: – (needs a month of history)
- Rank by users: #84,919 of 264,703 live extensions
- Rank in Art & Design: #2,097 of 3,551

## The listing

What the Chrome Web Store shows, as of the last check.

Summary from the listing:

> Each tab opens a window to a different grayscale world, with your favorite sites always in focus at the bottom.

- Extension ID: `bgomimblkalmchlokgaccjnohdmlofei`
- Developer: [JohnKappa](https://extensiontracker.com/developer/u9344721514c1311a0bdbb5facf4f809f)
- Category: [Lifestyle › Art & Design](https://extensiontracker.com/category/lifestyle/art)
- First published: 2024-09-08
- Last updated: 2025-12-20
- Version: `1.35`
- Size: 120 KiB
- Minimum Chrome: 88
- Languages (1): English
- Support page: `https://johnkappa.com/contact`
- Chrome Web Store: <https://chromewebstore.google.com/detail/greyscale-gateway/bgomimblkalmchlokgaccjnohdmlofei>
- View the code or download the CRX, in CRX Viewer: <https://robwu.nl/crxviewer/?crx=https%3A%2F%2Fchromewebstore.google.com%2Fdetail%2Fbgomimblkalmchlokgaccjnohdmlofei>

## Users over time

One row per check, newest first, as shown on the Chrome Web Store.

| Checked | Users | Rating | Ratings |
| --- | ---: | ---: | ---: |
| 2026-09-26 | 50 | 5.00 | 2 |

## What changed

Every change found on a check, newest first.

No changes found since tracking began on 2026-09-26.

## What it can access

From the extension's manifest, in plain language.

### Browser features

- `activeTab`: The tab you're on, only after you click the extension
- `storage`: Save settings and data in your browser
- `tabs`: Read the addresses and titles of your tabs

## More from this developer

Other extensions from the same publisher account.

| Extension | Users | Rating | Ratings | Category |
| --- | ---: | ---: | ---: | --- |
| [DOS-Style](https://extensiontracker.com/extension/kbncelkcioaknlnjkkmiplnlnkkcbgpm) | 184 | 5.00 | 3 | Tools |
| [ClearSlate](https://extensiontracker.com/extension/ljneogmdchhienoeaknhgpohffbhanho) | 66 | 5.00 | 8 | Tools |
| [Kanvas](https://extensiontracker.com/extension/gjldnhfflceanghfkpgpkclegjgpgjpa) | 38 | 1.00 | 1 | Tools |
| [MonoClock](https://extensiontracker.com/extension/ldcaalefddmbconbmooknhfjcaknbdki) | 26 | – | – | Just for Fun |
| [MicroJournal](https://extensiontracker.com/extension/ckmaofinhbickimhbmlaclkbjgimcgem) | 8 | – | – | Just for Fun |

All 6 extensions by [JohnKappa](https://extensiontracker.com/developer/u9344721514c1311a0bdbb5facf4f809f).

## About this data

Collected from the extension's public Chrome Web Store listing. It's checked every month, and again whenever a new version appears. Last checked 2026-09-26 22:27 UTC; next check around 2026-10-17.

How the data is collected: <https://extensiontracker.com/methodology>.

## Cite this page

Extension Tracker. “Greyscale Gateway” (bgomimblkalmchlokgaccjnohdmlofei). Chrome Web Store data, last checked 2026-09-26. https://extensiontracker.com/extension/bgomimblkalmchlokgaccjnohdmlofei. Accessed 2026-09-28.

```bibtex
@misc{extensiontracker_bgomimblkalmchlokgaccjnohdmlofei,
  title   = {Greyscale Gateway (bgomimblkalmchlokgaccjnohdmlofei)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-09-26},
  url     = {https://extensiontracker.com/extension/bgomimblkalmchlokgaccjnohdmlofei},
  urldate = {2026-09-28}
}
```

---

From Extension Tracker, a public record of the Chrome Web Store: <https://extensiontracker.com/extension/bgomimblkalmchlokgaccjnohdmlofei>. It isn't affiliated with Google. The data is free to reuse under CC BY 4.0 (<https://creativecommons.org/licenses/by/4.0/>), crediting Extension Tracker. Extension, developer and list pages come as Markdown too: add `format=md` to the address, as in `https://extensiontracker.com/extension/{id}?format=md`.