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Ancient Date Converter

Chrome extension by Karen Grigorian (he/him) · Make Chrome Yours · Accessibility

  • Featured
  • Established publisher

A Chrome extension in Make Chrome Yours · Accessibility with 109 users, barely installed.

Every site you visit. This extension can read and change the content of any page you open.

What the developer says, and 5 screenshots

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

Users
109
Rating
5.0 (1 ratings)
Users, last 16 days
-7
Rating, last 30 days
Not watched long enough to say
Version
9.1.1
Updated in the store
2026-06-09
Published
2021-04-22
Manifest
V3
Browser access
2 permissions, 1 site pattern

How it has moved

Users
-7 since 01.09
109-116 · 10 readings
  1. 2026-09-01116
  2. 2026-09-02113
  3. 2026-09-03109
  4. 2026-09-04111
  5. 2026-09-06114
  6. 2026-09-08113
  7. 2026-09-10111
  8. 2026-09-13110
  9. 2026-09-15109
  10. 2026-09-16109
Rating
unchanged since 01.09
reviewsrating 5.00 · 10 readings
  1. 2026-09-01reviews1rating5.00
  2. 2026-09-02reviews1rating5.00
  3. 2026-09-03reviews1rating5.00
  4. 2026-09-04reviews1rating5.00
  5. 2026-09-06reviews1rating5.00
  6. 2026-09-08reviews1rating5.00
  7. 2026-09-10reviews1rating5.00
  8. 2026-09-13reviews1rating5.00
  9. 2026-09-15reviews1rating5.00
  10. 2026-09-16reviews1rating5.00
Users
-7 since 01.09
109-116 · 10 readings
  1. 2026-09-01116
  2. 2026-09-02113
  3. 2026-09-03109
  4. 2026-09-04111
  5. 2026-09-06114
  6. 2026-09-08113
  7. 2026-09-10111
  8. 2026-09-13110
  9. 2026-09-15109
  10. 2026-09-16109
Rating
unchanged since 01.09
reviewsrating 5.00 · 10 readings
  1. 2026-09-01reviews1rating5.00
  2. 2026-09-02reviews1rating5.00
  3. 2026-09-03reviews1rating5.00
  4. 2026-09-04reviews1rating5.00
  5. 2026-09-06reviews1rating5.00
  6. 2026-09-08reviews1rating5.00
  7. 2026-09-10reviews1rating5.00
  8. 2026-09-13reviews1rating5.00
  9. 2026-09-15reviews1rating5.00
  10. 2026-09-16reviews1rating5.00

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

Every site you visit. This extension can read and change the content of any page you open.

  • Act on the current tab, but only after you click it activeTab
  • 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

Karen Grigorian (he/him) publishes 4 listings we track, 199 users between them. Listed website: oldera.org.

  1. BC/AD or BCE/CE Era Notation Selector Karen Grigorian (he/him) · Make Chrome Yours · Accessibility · published 2023-08-30 74 users ★ 5.0
  2. RW Reader Karen Grigorian (he/him) · Productivity · Education · published 2025-11-23 10 users
  3. LZ Desktop Helper Karen Grigorian (he/him) · Productivity · Tools · published 2025-08-30 6 users

Like this one

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

  1. BC/AD or BCE/CE Era Notation Selector Describes nearly the same job, smaller audience 74 users ★ 5.0
  2. BCE/CE Replacer Describes nearly the same job, smaller audience 12 users ★ 5.0
  3. Stick Calendar Describes nearly the same job, smaller audience 11 users ★ 5.0
  4. Calendar Buddy Describes nearly the same job, smaller audience 14 users ★ 5.0
  5. 和暦変換 Describes nearly the same job, smaller audience 64 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.

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.