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Chess Opponent Info

Chrome extension by Alexander Klotz · Productivity · Tools

A Chrome extension in Productivity · Tools with 105 users, barely installed. Audience over the last 30 days: +10.

Specific sites only: 1 match pattern.

What the developer says, and 2 screenshots

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

Users
105
Rating
5.0 (1 ratings)
Users, last 30 days
+10
Rating, last 30 days
Steady over 30 days
Version
0.0.1.0
Updated in the store
2024-06-06
Published
2024-06-06
Manifest
V3
Browser access
2 permissions, 1 site pattern

How it has moved

Users
+10 since 13.10
94-111 · 20 readings
  1. 2026-10-1395
  2. 2026-10-1696
  3. 2026-10-1797
  4. 2026-10-1895
  5. 2026-10-1994
  6. 2026-10-2198
  7. 2026-10-22105
  8. 2026-10-23104
  9. 2026-10-24105
  10. 2026-10-25103
  11. 2026-10-27105
  12. 2026-10-29111
  13. 2026-10-31110
  14. 2026-11-03104
  15. 2026-11-05101
  16. 2026-11-07102
  17. 2026-11-08103
  18. 2026-11-09102
  19. 2026-11-10105
  20. 2026-11-12105
Rating
unchanged since 13.10
reviewsrating 5.00 · 20 readings
  1. 2026-10-13reviews1rating5.00
  2. 2026-10-16reviews1rating5.00
  3. 2026-10-17reviews1rating5.00
  4. 2026-10-18reviews1rating5.00
  5. 2026-10-19reviews1rating5.00
  6. 2026-10-21reviews1rating5.00
  7. 2026-10-22reviews1rating5.00
  8. 2026-10-23reviews1rating5.00
  9. 2026-10-24reviews1rating5.00
  10. 2026-10-25reviews1rating5.00
  11. 2026-10-27reviews1rating5.00
  12. 2026-10-29reviews1rating5.00
  13. 2026-10-31reviews1rating5.00
  14. 2026-11-03reviews1rating5.00
  15. 2026-11-05reviews1rating5.00
  16. 2026-11-07reviews1rating5.00
  17. 2026-11-08reviews1rating5.00
  18. 2026-11-09reviews1rating5.00
  19. 2026-11-10reviews1rating5.00
  20. 2026-11-12reviews1rating5.00
Users
+4 since 01.09
94-111 · 39 readings
  1. 2026-09-01101
  2. 2026-09-03102
  3. 2026-09-05103
  4. 2026-09-07100
  5. 2026-09-08102
  6. 2026-09-0999
  7. 2026-09-1097
  8. 2026-09-1398
  9. 2026-09-15102
  10. 2026-09-17103
  11. 2026-09-21103
  12. 2026-09-25101
  13. 2026-09-2698
  14. 2026-09-2897
  15. 2026-10-04100
  16. 2026-10-0894
  17. 2026-10-0995
  18. 2026-10-1096
  19. 2026-10-1197
  20. 2026-10-1395
  21. 2026-10-1696
  22. 2026-10-1797
  23. 2026-10-1895
  24. 2026-10-1994
  25. 2026-10-2198
  26. 2026-10-22105
  27. 2026-10-23104
  28. 2026-10-24105
  29. 2026-10-25103
  30. 2026-10-27105
  31. 2026-10-29111
  32. 2026-10-31110
  33. 2026-11-03104
  34. 2026-11-05101
  35. 2026-11-07102
  36. 2026-11-08103
  37. 2026-11-09102
  38. 2026-11-10105
  39. 2026-11-12105
Rating
unchanged since 01.09
reviewsrating 5.00 · 39 readings
  1. 2026-09-01reviews1rating5.00
  2. 2026-09-03reviews1rating5.00
  3. 2026-09-05reviews1rating5.00
  4. 2026-09-07reviews1rating5.00
  5. 2026-09-08reviews1rating5.00
  6. 2026-09-09reviews1rating5.00
  7. 2026-09-10reviews1rating5.00
  8. 2026-09-13reviews1rating5.00
  9. 2026-09-15reviews1rating5.00
  10. 2026-09-17reviews1rating5.00
  11. 2026-09-21reviews1rating5.00
  12. 2026-09-25reviews1rating5.00
  13. 2026-09-26reviews1rating5.00
  14. 2026-09-28reviews1rating5.00
  15. 2026-10-04reviews1rating5.00
  16. 2026-10-08reviews1rating5.00
  17. 2026-10-09reviews1rating5.00
  18. 2026-10-10reviews1rating5.00
  19. 2026-10-11reviews1rating5.00
  20. 2026-10-13reviews1rating5.00
  21. 2026-10-16reviews1rating5.00
  22. 2026-10-17reviews1rating5.00
  23. 2026-10-18reviews1rating5.00
  24. 2026-10-19reviews1rating5.00
  25. 2026-10-21reviews1rating5.00
  26. 2026-10-22reviews1rating5.00
  27. 2026-10-23reviews1rating5.00
  28. 2026-10-24reviews1rating5.00
  29. 2026-10-25reviews1rating5.00
  30. 2026-10-27reviews1rating5.00
  31. 2026-10-29reviews1rating5.00
  32. 2026-10-31reviews1rating5.00
  33. 2026-11-03reviews1rating5.00
  34. 2026-11-05reviews1rating5.00
  35. 2026-11-07reviews1rating5.00
  36. 2026-11-08reviews1rating5.00
  37. 2026-11-09reviews1rating5.00
  38. 2026-11-10reviews1rating5.00
  39. 2026-11-12reviews1rating5.00

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing 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://*.chess.com/*
  • See the address and title of every tab you have open tabs
  • 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

Alexander Klotz.

Like this one

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

  1. Sus-O-Meter - Chess Profile Analyzer Describes nearly the same job, smaller audience 26 users
  2. Chess Rating Highlighter Describes nearly the same job, smaller audience 11 users ★ 5.0
  3. Chess.com utilities Describes nearly the same job, smaller audience 53 users
  4. Acculi Describes nearly the same job, smaller audience 3 users (last published figure)
  5. LiTools Describes nearly the same job, smaller audience 401 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.

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Users and rating on Ext Ops Panel

Markdown

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

HTML

<a href="https://extops.dev/extensions/pcjcbllhkkfmhjkkcdheljobkigdmnkd"><img src="https://extops.dev/extensions/pcjcbllhkkfmhjkkcdheljobkigdmnkd/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 2026-11-10. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built