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Coffee Piano

Chrome extension · Productivity · Education

A Chrome extension in Productivity · Education with 389 users, barely installed. Audience over the last 30 days: +49.

No site access is declared in the manifest, so it cannot read the pages you open on its own.

What the developer says, and 4 screenshots

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

Users
389
Rating
4.8 (5 ratings)
Users, last 30 days
+49
Rating, last 30 days
Steady over 30 days
Version
1.0
Updated in the store
2024-11-11
Published
2024-11-11
Manifest
V3
Browser access
No permissions declared

How it has moved

Users
+49 since 02.10
340-393 · 19 readings
  1. 2026-10-04373
  2. 2026-10-08370
  3. 2026-10-09372
  4. 2026-10-10371
  5. 2026-10-11375
  6. 2026-10-13379
  7. 2026-10-16389
  8. 2026-10-18386
  9. 2026-10-19392
  10. 2026-10-20385
  11. 2026-10-21384
  12. 2026-10-22387
  13. 2026-10-23386
  14. 2026-10-24378
  15. 2026-10-25384
  16. 2026-10-28393
  17. 2026-10-29392
  18. 2026-10-30389
  19. 2026-10-31389
Rating
unchanged since 02.10
reviewsrating 4.80 · 19 readings
  1. 2026-10-04reviews5rating4.80
  2. 2026-10-08reviews5rating4.80
  3. 2026-10-09reviews5rating4.80
  4. 2026-10-10reviews5rating4.80
  5. 2026-10-11reviews5rating4.80
  6. 2026-10-13reviews5rating4.80
  7. 2026-10-16reviews5rating4.80
  8. 2026-10-18reviews5rating4.80
  9. 2026-10-19reviews5rating4.80
  10. 2026-10-20reviews5rating4.80
  11. 2026-10-21reviews5rating4.80
  12. 2026-10-22reviews5rating4.80
  13. 2026-10-23reviews5rating4.80
  14. 2026-10-24reviews5rating4.80
  15. 2026-10-25reviews5rating4.80
  16. 2026-10-28reviews5rating4.80
  17. 2026-10-29reviews5rating4.80
  18. 2026-10-30reviews5rating4.80
  19. 2026-10-31reviews5rating4.80
Users
+24 since 31.08
339-393 · 33 readings
  1. 2026-08-31365
  2. 2026-09-03368
  3. 2026-09-05378
  4. 2026-09-07377
  5. 2026-09-08378
  6. 2026-09-09363
  7. 2026-09-10360
  8. 2026-09-13367
  9. 2026-09-16383
  10. 2026-09-20375
  11. 2026-09-21373
  12. 2026-09-25350
  13. 2026-09-27339
  14. 2026-09-28340
  15. 2026-10-04373
  16. 2026-10-08370
  17. 2026-10-09372
  18. 2026-10-10371
  19. 2026-10-11375
  20. 2026-10-13379
  21. 2026-10-16389
  22. 2026-10-18386
  23. 2026-10-19392
  24. 2026-10-20385
  25. 2026-10-21384
  26. 2026-10-22387
  27. 2026-10-23386
  28. 2026-10-24378
  29. 2026-10-25384
  30. 2026-10-28393
  31. 2026-10-29392
  32. 2026-10-30389
  33. 2026-10-31389
Rating
unchanged since 31.08
reviewsrating 4.80 · 33 readings
  1. 2026-08-31reviews5rating4.80
  2. 2026-09-03reviews5rating4.80
  3. 2026-09-05reviews5rating4.80
  4. 2026-09-07reviews5rating4.80
  5. 2026-09-08reviews5rating4.80
  6. 2026-09-09reviews5rating4.80
  7. 2026-09-10reviews5rating4.80
  8. 2026-09-13reviews5rating4.80
  9. 2026-09-16reviews5rating4.80
  10. 2026-09-20reviews5rating4.80
  11. 2026-09-21reviews5rating4.80
  12. 2026-09-25reviews5rating4.80
  13. 2026-09-27reviews5rating4.80
  14. 2026-09-28reviews5rating4.80
  15. 2026-10-04reviews5rating4.80
  16. 2026-10-08reviews5rating4.80
  17. 2026-10-09reviews5rating4.80
  18. 2026-10-10reviews5rating4.80
  19. 2026-10-11reviews5rating4.80
  20. 2026-10-13reviews5rating4.80
  21. 2026-10-16reviews5rating4.80
  22. 2026-10-18reviews5rating4.80
  23. 2026-10-19reviews5rating4.80
  24. 2026-10-20reviews5rating4.80
  25. 2026-10-21reviews5rating4.80
  26. 2026-10-22reviews5rating4.80
  27. 2026-10-23reviews5rating4.80
  28. 2026-10-24reviews5rating4.80
  29. 2026-10-25reviews5rating4.80
  30. 2026-10-28reviews5rating4.80
  31. 2026-10-29reviews5rating4.80
  32. 2026-10-30reviews5rating4.80
  33. 2026-10-31reviews5rating4.80

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

No site access is declared in the manifest, so it cannot read the pages you open on its own.

We have not read this listing's manifest since we started keeping permission names. The counts above come from the last time we did.

The full permission history for this extension

What changed recently

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

Like this one

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

  1. Piano for Chrome Describes nearly the same job, smaller audience 4k users ★ 3.5
  2. Music Tab Describes nearly the same job, smaller audience 19 users ★ 4.0
  3. Browser Synth Describes nearly the same job, smaller audience 18 users ★ 5.0
  4. Popup Piano Describes nearly the same job, smaller audience 23 users ★ 5.0
  5. KBD To MIDI Piano Describes nearly the same job, with an established audience 10k users ★ 4.2

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

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Figures come from our own regular passes over the public Chrome Web Store listing, last read on . The store last changed these figures on 2026-10-30. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built