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JamKit - Musician's Toolbox for YouTube

Chrome extension by Joetheswede · Productivity · Tools

A Chrome extension in Productivity · Tools with 30 users, barely installed. Audience over the last 30 days: +1.

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

What the developer says, and 1 screenshot

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

Users
30
Rating
1.0 (1 ratings)
Users, last 30 days
+1
Rating, last 30 days
Steady over 30 days
Version
2.0.0
Updated in the store
2025-11-03
Published
2025-10-29
Manifest
V3
Browser access
No permissions declared

How it has moved

Users
+1 since 30.09
26-31 · 15 readings
  1. 2026-10-0431
  2. 2026-10-0830
  3. 2026-10-0929
  4. 2026-10-1028
  5. 2026-10-1130
  6. 2026-10-1628
  7. 2026-10-1826
  8. 2026-10-1927
  9. 2026-10-2128
  10. 2026-10-2331
  11. 2026-10-2430
  12. 2026-10-2529
  13. 2026-10-2728
  14. 2026-10-2930
  15. 2026-10-3030
Rating
unchanged since 30.09
reviewsrating 1.00 · 15 readings
  1. 2026-10-04reviews1rating1.00
  2. 2026-10-08reviews1rating1.00
  3. 2026-10-09reviews1rating1.00
  4. 2026-10-10reviews1rating1.00
  5. 2026-10-11reviews1rating1.00
  6. 2026-10-16reviews1rating1.00
  7. 2026-10-18reviews1rating1.00
  8. 2026-10-19reviews1rating1.00
  9. 2026-10-21reviews1rating1.00
  10. 2026-10-23reviews1rating1.00
  11. 2026-10-24reviews1rating1.00
  12. 2026-10-25reviews1rating1.00
  13. 2026-10-27reviews1rating1.00
  14. 2026-10-29reviews1rating1.00
  15. 2026-10-30reviews1rating1.00
Users
+3 since 01.09
26-34 · 26 readings
  1. 2026-09-0127
  2. 2026-09-0329
  3. 2026-09-0428
  4. 2026-09-0630
  5. 2026-09-1028
  6. 2026-09-1330
  7. 2026-09-2033
  8. 2026-09-2134
  9. 2026-09-2530
  10. 2026-09-2632
  11. 2026-09-2829
  12. 2026-10-0431
  13. 2026-10-0830
  14. 2026-10-0929
  15. 2026-10-1028
  16. 2026-10-1130
  17. 2026-10-1628
  18. 2026-10-1826
  19. 2026-10-1927
  20. 2026-10-2128
  21. 2026-10-2331
  22. 2026-10-2430
  23. 2026-10-2529
  24. 2026-10-2728
  25. 2026-10-2930
  26. 2026-10-3030
Rating
unchanged since 01.09
reviewsrating 1.00 · 26 readings
  1. 2026-09-01reviews1rating1.00
  2. 2026-09-03reviews1rating1.00
  3. 2026-09-04reviews1rating1.00
  4. 2026-09-06reviews1rating1.00
  5. 2026-09-10reviews1rating1.00
  6. 2026-09-13reviews1rating1.00
  7. 2026-09-20reviews1rating1.00
  8. 2026-09-21reviews1rating1.00
  9. 2026-09-25reviews1rating1.00
  10. 2026-09-26reviews1rating1.00
  11. 2026-09-28reviews1rating1.00
  12. 2026-10-04reviews1rating1.00
  13. 2026-10-08reviews1rating1.00
  14. 2026-10-09reviews1rating1.00
  15. 2026-10-10reviews1rating1.00
  16. 2026-10-11reviews1rating1.00
  17. 2026-10-16reviews1rating1.00
  18. 2026-10-18reviews1rating1.00
  19. 2026-10-19reviews1rating1.00
  20. 2026-10-21reviews1rating1.00
  21. 2026-10-23reviews1rating1.00
  22. 2026-10-24reviews1rating1.00
  23. 2026-10-25reviews1rating1.00
  24. 2026-10-27reviews1rating1.00
  25. 2026-10-29reviews1rating1.00
  26. 2026-10-30reviews1rating1.00

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

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.

The publisher

Joetheswede.

Like this one

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

  1. Rehearsal: Youtube Speed Shifter Describes nearly the same job, smaller audience 485 users ★ 3.8
  2. Pitch Shift, Transpose Key & Speed Control for YouTube – KeyPitch Describes nearly the same job, with an established audience 10k users ★ 4.9
  3. Practice Hero: YouTube Music Looper & Speed Trainer Describes nearly the same job, smaller audience 38 users ★ 5.0
  4. PitchKey Describes nearly the same job, smaller audience 43 users ★ 5.0
  5. YouTube Precision Slowdown Describes nearly the same job, smaller audience 32 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

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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 2026-10-29. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built