Extension Tracker

Grammafy — On-Device Grammar Checker

No user count No ratings yet Last updated 15 Sep 2026

By Jason Live in the Chrome Web Store cjmpkplpjmfahmmpblehgmipfjgmedmc Last checked 26 Sep 2026, 19:20 UTC

The listing

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

Private, on-device grammar and spelling corrections as you type. Click an underlined word to fix it. Your writing stays local.Summary from the listing
Developer
Jason
Category
Productivity › Tools
First published
15 Sep 2026
Last updated
15 Sep 2026
Version
0.1.0
Size
49.0 KiB
Minimum Chrome
138
Languages
1 language

English (United States)

Support page
https://github.com/jasonzh0/grammafy/issues
Open in the Chrome Web Store ↗ View the code or download the CRX in CRX Viewer ↗
Users over time As shown on the Chrome Web Store

Tracking began on 26 Sep 2026. The chart appears after the second check.

Show the numbers
CheckedUsersRatingRatings
2026-09-26–––
Users, 7 days
–
needs a week of history
Users, 30 days
–
needs a month of history
Rank
–
by users, of 264,703 extensions
In its category
–
of 103,498 in Tools

What changed

Every change found on a check, newest first

No changes found since tracking began on 26 Sep 2026.

What it can access

From the extension's manifest, in plain language

Every websiteIt can read and change your data on all the sites you visit.
Sites where it runs scripts
  • http://*/*Every website
  • https://*/*Every website
Browser features
  • activeTabThe tab you're on, only after you click the extension
  • offscreenOpen a hidden page for background work
  • storageSave settings and data in your browser

More from this developer

Other extensions from the same publisher account

ExtensionUsersRatingRatingsCategory
Doomscroll Blocker — Stop the Infinite Scroll1,000 4.6422 Workflow & Planning
All 2 extensions by Jason →

About this data

Collected from the extension's public Chrome Web Store listing. It's checked again 7 and 30 days after it was published, and again whenever a new version appears. Last checked 26 Sep 2026, 19:20 UTC; next check around 15 Oct 2026.

How we collect the data

Cite this page

Citation
Extension Tracker. “Grammafy — On-Device Grammar Checker” (cjmpkplpjmfahmmpblehgmipfjgmedmc). Chrome Web Store data, last checked 2026-09-26. https://extensiontracker.com/extension/cjmpkplpjmfahmmpblehgmipfjgmedmc. Accessed 2026-09-28.
BibTeX
@misc{extensiontracker_cjmpkplpjmfahmmpblehgmipfjgmedmc,
  title   = {Grammafy — On-Device Grammar Checker (cjmpkplpjmfahmmpblehgmipfjgmedmc)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-09-26},
  url     = {https://extensiontracker.com/extension/cjmpkplpjmfahmmpblehgmipfjgmedmc},
  urldate = {2026-09-28}
}

The data is free to reuse under CC BY 4.0.

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