Ext Ops Panel
Open dashboard

AtCoder Unit Test

Chrome extension by YujiSoftware · Productivity · Developer

  • Featured

A Chrome extension in Productivity · Developer with 858 users, barely installed. Audience over the last 30 days: +45.

Specific sites only: 1 match pattern.

What the developer says, and 1 screenshot

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

Users
858
Rating
5.0 (1 ratings)
Users, last 30 days
+45
Rating, last 30 days
Steady over 30 days
Version
3.1.0
Updated in the store
2024-03-19
Published
2016-04-16
Manifest
V3
Browser access
2 permissions, 1 site pattern

How it has moved

Users
+45 since 02.10
813-867 · 16 readings
  1. 2026-10-04825
  2. 2026-10-08819
  3. 2026-10-09813
  4. 2026-10-10813
  5. 2026-10-13815
  6. 2026-10-16866
  7. 2026-10-18855
  8. 2026-10-19852
  9. 2026-10-21838
  10. 2026-10-22835
  11. 2026-10-23833
  12. 2026-10-24843
  13. 2026-10-25860
  14. 2026-10-27867
  15. 2026-10-29848
  16. 2026-11-01858
Rating
unchanged since 02.10
reviewsrating 5.00 · 16 readings
  1. 2026-10-04reviews1rating5.00
  2. 2026-10-08reviews1rating5.00
  3. 2026-10-09reviews1rating5.00
  4. 2026-10-10reviews1rating5.00
  5. 2026-10-13reviews1rating5.00
  6. 2026-10-16reviews1rating5.00
  7. 2026-10-18reviews1rating5.00
  8. 2026-10-19reviews1rating5.00
  9. 2026-10-21reviews1rating5.00
  10. 2026-10-22reviews1rating5.00
  11. 2026-10-23reviews1rating5.00
  12. 2026-10-24reviews1rating5.00
  13. 2026-10-25reviews1rating5.00
  14. 2026-10-27reviews1rating5.00
  15. 2026-10-29reviews1rating5.00
  16. 2026-11-01reviews1rating5.00
Users
+60 since 31.08
790-867 · 31 readings
  1. 2026-08-31798
  2. 2026-09-02808
  3. 2026-09-03807
  4. 2026-09-04806
  5. 2026-09-06812
  6. 2026-09-07811
  7. 2026-09-08805
  8. 2026-09-10806
  9. 2026-09-13799
  10. 2026-09-15808
  11. 2026-09-16802
  12. 2026-09-20790
  13. 2026-09-25817
  14. 2026-09-26810
  15. 2026-09-28813
  16. 2026-10-04825
  17. 2026-10-08819
  18. 2026-10-09813
  19. 2026-10-10813
  20. 2026-10-13815
  21. 2026-10-16866
  22. 2026-10-18855
  23. 2026-10-19852
  24. 2026-10-21838
  25. 2026-10-22835
  26. 2026-10-23833
  27. 2026-10-24843
  28. 2026-10-25860
  29. 2026-10-27867
  30. 2026-10-29848
  31. 2026-11-01858
Rating
unchanged since 31.08
reviewsrating 5.00 · 31 readings
  1. 2026-08-31reviews1rating5.00
  2. 2026-09-02reviews1rating5.00
  3. 2026-09-03reviews1rating5.00
  4. 2026-09-04reviews1rating5.00
  5. 2026-09-06reviews1rating5.00
  6. 2026-09-07reviews1rating5.00
  7. 2026-09-08reviews1rating5.00
  8. 2026-09-10reviews1rating5.00
  9. 2026-09-13reviews1rating5.00
  10. 2026-09-15reviews1rating5.00
  11. 2026-09-16reviews1rating5.00
  12. 2026-09-20reviews1rating5.00
  13. 2026-09-25reviews1rating5.00
  14. 2026-09-26reviews1rating5.00
  15. 2026-09-28reviews1rating5.00
  16. 2026-10-04reviews1rating5.00
  17. 2026-10-08reviews1rating5.00
  18. 2026-10-09reviews1rating5.00
  19. 2026-10-10reviews1rating5.00
  20. 2026-10-13reviews1rating5.00
  21. 2026-10-16reviews1rating5.00
  22. 2026-10-18reviews1rating5.00
  23. 2026-10-19reviews1rating5.00
  24. 2026-10-21reviews1rating5.00
  25. 2026-10-22reviews1rating5.00
  26. 2026-10-23reviews1rating5.00
  27. 2026-10-24reviews1rating5.00
  28. 2026-10-25reviews1rating5.00
  29. 2026-10-27reviews1rating5.00
  30. 2026-10-29reviews1rating5.00
  31. 2026-11-01reviews1rating5.00

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.

  • *://atcoder.jp/contests/*/tasks/*

The full permission history for this extension

What changed recently

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

The publisher

YujiSoftware publishes 5 listings we track, 14k users between them.

  1. Copy text with Alt-Click YujiSoftware · Productivity · Workflow · published 2016-02-15 10k users ★ 3.9
  2. Kindle bookshelf exporter YujiSoftware · Productivity · Workflow · published 2022-09-06 2k users ★ 4.1
  3. JavaAPI (Javadoc) Redirector YujiSoftware · Productivity · Developer · published 2017-07-19 873 users ★ 5.0
Show 1 more from this publisher
  1. Phishing Alert YujiSoftware · Make Chrome Yours · Privacy · published 2025-04-28 11 users

Like this one

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

  1. Atcoder Companion Describes nearly the same job, smaller audience 2k users ★ 5.0
  2. AtCoder In-Browser Playground Describes nearly the same job, smaller audience 24 users
  3. LeetCode Contest Helper Describes nearly the same job, smaller audience 42 users ★ 5.0
  4. Kattis Python Tester Describes nearly the same job, smaller audience 3 users
  5. LeetTest Describes nearly the same job, smaller audience 2k users ★ 3.9

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.

Want this mark on your extension in our catalog?

Verify that you are its author and you can show this mark on the card, with live banners for your site and README. How verification works

Connect it to Ext Ops Panel and see installs, uninstalls and uninstall reasons as events arrive, not as a weekly summary.

Connect it in a minute See what the panel does
Add a badge to your README or site

The badge shows the audience and rating from our last pass over the store and links back to this page.

Users and rating on Ext Ops Panel

Markdown

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

HTML

<a href="https://extops.dev/extensions/lmahhninbclefepjbcdfbcjnancipfmi"><img src="https://extops.dev/extensions/lmahhninbclefepjbcdfbcjnancipfmi/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 2026-11-01. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built