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 snapshotsTracking since Apr 18, 2026.
View as table
| Date | Users | Rating | Reviews | Version |
|---|---|---|---|---|
| Apr 18, 2026 | 1.0K | 5.00 | 9 | 0.3.7 |
| Apr 28, 2026 | 2.0K | 5.00 | 9 | 0.3.7 |
| May 8, 2026 | 1.0K | 5.00 | 9 | 0.3.7 |
| May 15, 2026 | 2.0K | 5.00 | 9 | 0.3.7 |
| Now | 1.0K | 5.00 | 9 | 0.3.7 |
Permissions & access
- Permissions
- storageunlimitedStorage
- Host access
- None declared
Screenshots
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.
LeetCoder
LeetCoder provides handy features like showing current stats, random picking a problem and copying question/answer/testcases.
647
Verdict Helper
One-click submission to Codeforces - the modern competitive programming interface helper.
87
★ 5.0
LT Companion
Your AI LeetCode assistant: hints, code analysis, test cases, approach suggestions, and focused practice mode.
112
★ 5.0
LeetCode Contest Helper
Help contestants succeed in LeetCode contests with testcase loading, result checking, on-tab state icons, and test code generation.
36
★ 5.0
ZEN Study +
ZEN Studyに様々な機能を追加するChrome拡張機能
116
BOJ Editor
Integrated code editor for Baekjoon Online Judge with test case execution and submission
15
★ 5.0
AtCoder Senpai
コンテスト提出を上位陣と比較しAI添削します。
151
LC Participant Locator
Find your position in the LeetCode contest list to easily locate and view other users' codes.
212
★ 5.0
Data sourced from the Chrome Web Store · last verified Jun 3, 2026.