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Katana

Chrome extension by matt · Productivity · Education

  • Trader

A Chrome extension in Productivity · Education with 5 users, barely installed.

Specific sites only: 2 match patterns.

What the developer says, and 3 screenshots

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

Users
5
Rating
not rated yet
Users, last 18 days
+2
Version
2.0.0
Updated in the store
2026-06-25
Published
2026-06-18
Manifest
V3
Browser access
5 permissions, 2 site patterns

How it has moved

Users
+2 since 01.09
3-6 · 10 readings
  1. 2026-09-013
  2. 2026-09-024
  3. 2026-09-053
  4. 2026-09-064
  5. 2026-09-073
  6. 2026-09-096
  7. 2026-09-105
  8. 2026-09-156
  9. 2026-09-175
  10. 2026-09-185
Users
+2 since 01.09
3-6 · 10 readings
  1. 2026-09-013
  2. 2026-09-024
  3. 2026-09-053
  4. 2026-09-064
  5. 2026-09-073
  6. 2026-09-096
  7. 2026-09-105
  8. 2026-09-156
  9. 2026-09-175
  10. 2026-09-185

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing more than once 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: 2 match patterns.

  • *://*.instructure.com/*
  • https://www.gradewithkatana.com/*
  • Run its own code on the pages it can access scripting
  • See when you navigate between pages webNavigation
  • Act on the current tab, but only after you click it activeTab
Show the remaining 2
  • Open a panel beside the page sidePanel
  • Store data in your browser storage

The full permission history for this extension

What changed recently

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

The publisher

matt. Listed website: gradewithkatana.com.

Like this one

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

  1. CoGrader for Canvas - AI Grader Describes nearly the same job, smaller audience 1k users ★ 5.0
  2. PreGrade Describes nearly the same job, smaller audience 9 users ★ 4.7
  3. GradiumX Describes nearly the same job, smaller audience 6 users
  4. GraderPal Describes nearly the same job, smaller audience 6 users
  5. Gradifier Describes nearly the same job, smaller audience 57 users ★ 5.0

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.

Is this your extension?

Connect it to Ext Ops Panel and see installs, uninstalls and uninstall reasons as events arrive, not as a weekly summary.

See what the panel does

Figures come from our own daily pass over the public Chrome Web Store listing, last read on . We publish no contact details for extension developers.