Atcoder Companion

Enhance your experience by providing some useful features designed to streamline your workflow and boost your productivity.

As of June 2026, Atcoder Companion has 1,000 users and a 5.00/5 rating from 9 reviews in the Productivity category.

Usersno change0%
1.0K
1,000
Ratingno change0%
5.00
9 reviews
Reviewsno change0%
9
Version
0.3.7
Manifest V3

History

4 snapshots

Tracking since Apr 18, 2026.

2.1K1.5K920Apr 18, 2026Jun 3, 2026
View as table
DateUsersRatingReviewsVersion
Apr 18, 20261.0K5.0090.3.7
Apr 28, 20262.0K5.0090.3.7
May 8, 20261.0K5.0090.3.7
May 15, 20262.0K5.0090.3.7
Now1.0K5.0090.3.7

Permissions & access

Permissions
storageunlimitedStorage
Host access
None declared

Screenshots

Atcoder Companion screenshot 1Atcoder Companion screenshot 2Atcoder Companion screenshot 3Atcoder Companion screenshot 4Atcoder Companion screenshot 5Atcoder Companion screenshot 6Atcoder Companion screenshot 7

About

This extension offers some key features:

1. Estimate performance and rating during contests.
2. Add test cases to a problem statement (disabled by default, open the setting popup to enable).
3. Show the status of the problems you have submitted.
4. Allow copying and downloading test cases (each or all) with one click.
5. Simplify debugging with the custom test page.

Blog on Codeforces: https://codeforces.com/blog/entry/133287
Feel free to open an issue or submit a pull request on GitHub: https://github.com/conlacda/atcoder-companion

============================
下記の機能を提供しています:

1. コンテスト開催中のパフォーマンス値やレーティングの表示(実験的な機能)。
2. 問題文にテストケースを追加(デフォルトでは無効ですが、設定ポップアップから有効にできます)。
3. 「問題」ページでの提出状況が確認できる。
4. テストケースのコピー・ダウンロードおよびコードテストを使ったデバッグができる。

バグが見つかった場合は、お知らせください 😃!!

Technical

Version
0.3.7
Manifest
V3
Size
131KiB
Min Chrome
88
Languages
1
Featured
No

Metadata

ID
bflhekmjlbpdlibcmojpikplaldgceec
Developer ID
ubb8141ca426a49fa85e7ddd43c3570bd
Developer Email
[email protected]
Created
May 7, 2024
Last Updated (Store)
Dec 22, 2025
Last Scraped
Jun 3, 2026
Website
Support URL
Privacy Policy

Similar extensions

Alternatives to Atcoder Companion, ranked by description similarity.

Data sourced from the Chrome Web Store · last verified Jun 3, 2026.