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API Tester Pro

Chrome extension by Anslation · Productivity · Developer

  • Established publisher
  • Trader

A Chrome extension in Productivity · Developer with 23 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
23
Rating
5.0 (1 ratings)
Users, last 16 days
+6
Rating, last 30 days
Not watched long enough to say
Version
2.1.1
Updated in the store
2026-04-07
Published
2026-02-15
Manifest
V3
Browser access
4 permissions, 2 site patterns

How it has moved

Users
+6 since 31.08
16-23 · 8 readings
2026-09-02: no longer featured2026-09-02: gained the good publisher record badge
  1. 2026-08-3117
  2. 2026-09-0219no longer featuredgained the good publisher record badge
  3. 2026-09-0516
  4. 2026-09-0617
  5. 2026-09-0716
  6. 2026-09-0818
  7. 2026-09-1022
  8. 2026-09-1523
Rating
unchanged since 31.08
reviewsrating 5.00 · 8 readings
2026-09-02: no longer featured2026-09-02: gained the good publisher record badge
  1. 2026-08-31reviews1rating5.00
  2. 2026-09-02reviews1rating5.00no longer featuredgained the good publisher record badge
  3. 2026-09-05reviews1rating5.00
  4. 2026-09-06reviews1rating5.00
  5. 2026-09-07reviews1rating5.00
  6. 2026-09-08reviews1rating5.00
  7. 2026-09-10reviews1rating5.00
  8. 2026-09-15reviews1rating5.00
Users
+6 since 31.08
16-23 · 8 readings
2026-09-02: no longer featured2026-09-02: gained the good publisher record badge
  1. 2026-08-3117
  2. 2026-09-0219no longer featuredgained the good publisher record badge
  3. 2026-09-0516
  4. 2026-09-0617
  5. 2026-09-0716
  6. 2026-09-0818
  7. 2026-09-1022
  8. 2026-09-1523
Rating
unchanged since 31.08
reviewsrating 5.00 · 8 readings
2026-09-02: no longer featured2026-09-02: gained the good publisher record badge
  1. 2026-08-31reviews1rating5.00
  2. 2026-09-02reviews1rating5.00no longer featuredgained the good publisher record badge
  3. 2026-09-05reviews1rating5.00
  4. 2026-09-06reviews1rating5.00
  5. 2026-09-07reviews1rating5.00
  6. 2026-09-08reviews1rating5.00
  7. 2026-09-10reviews1rating5.00
  8. 2026-09-15reviews1rating5.00

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.

  • Schedule work to run later alarms
  • Put data on your clipboard clipboardWrite
  • Show you notifications notifications
Show the remaining 1
  • Store data in your browser storage

The full permission history for this extension

What changed recently

  1. Store badges changed

The publisher

Anslation publishes 19 listings we track, 930 users between them.

  1. Pixel Perfect : Color Picker Anslation · Productivity · Developer · published 2026-02-13 282 users ★ 4.8
  2. Tech Detector Pro Anslation · Productivity · Developer · published 2026-02-12 108 users ★ 4.8
  3. BMI Calculator Anslation · Lifestyle · Well Being · published 2026-02-04 74 users ★ 5.0
Show 5 more from this publisher
  1. Age Calculator Anslation · Productivity · Tools · published 2026-02-05 69 users ★ 4.8
  2. Extension Manager Pro Anslation · Productivity · Tools · published 2026-02-12 52 users ★ 4.7
  3. QuickShot – Screen Capture Tool Anslation · Productivity · Developer · published 2026-02-15 50 users ★ 5.0
  4. Calendar & World Clock Anslation · Productivity · Education · published 2026-02-14 37 users ★ 5.0
  5. LaTeX Studio Anslation · Productivity · Developer · published 2026-02-14 34 users ★ 5.0

Like this one

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

  1. API Tester Describes nearly the same job, smaller audience 25 users
  2. ApiTest Pro Describes nearly the same job, smaller audience 15 users
  3. Postmann Describes nearly the same job, smaller audience 8k users ★ 5.0
  4. Developer Tools - Request Runner Describes nearly the same job, smaller audience 13 users
  5. RePost - API Tester Describes nearly the same job, smaller audience 61 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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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.