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Atcoder Companion icon

Atcoder Companion

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

Users1KCurrent public install base
Rating5.0Store average score
Reviews9Public review volume
Manifest versionV3Extension platform version
7-day growth--Net users gained this week
7-day growth rate--Relative weekly velocity
Preview

Atcoder Companion Media preview

8 assets
Trend

User growth trend

Review user movement across collected snapshots.

User Growth Over Time

1K1K1K1K1K2026年7月21日2026年7月21日2026年7月21日Latest: 1K
Rating trend

7-day rating trend

View collected rating snapshots from the latest 7-day window to assess rating stability.

7-day rating change

Start
5.00
Latest
5.00
7-day rating change
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4.904.955.005.055.102026年7月21日2026年7月21日2026年7月21日Latest: 5.00
2026年7月21日2026年7月21日
Growth overview

Daily, weekly, and monthly growth

Compare 1-day, 7-day, and 30-day net growth and growth rate.

1-day growthNo data
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7-day growthNo data
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30-day growthFlat
00%
Technical snapshot

Version, languages, and crawl freshness

Review publication date, version, supported languages, and crawl timestamps.

Version0.3.7
ManifestV3
Size131KiB
Languages1English
Published
Store updated
Last crawled
English
Overview

Product summary

Review the store description, core capabilities, and common use cases.

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.

Reviews

Recent review snapshot

Inspect the latest comments and rating distribution.

Store average score5.0Chrome Web Store aggregate rating, including ratings without synced review text
Synced text average5.0Average computed only from synced review bodies below
Reviews with text5Synced review bodies
Total ratings / reviews9Chrome Web Store public rating/review count

Store average score: 5.0. The bars below are calculated from synced review text only, so they may be empty for extensions that have public ratings but no synced comments yet.

5
5
4
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Heydər Hazıqlı2025年12月20日
5

That is so coollllll!!

Version 0.3.6Language en
1 helpful · 0 not helpful
Vedanta Mohapatra2024年9月13日
5

Great extension works as expected.

Version 0.2.2Language en
1 helpful · 0 not helpful
Zoro Roronoa2024年8月29日
5

Good job

Version 0.2.0Language en
2 helpful · 0 not helpful
Jasmine P.2024年5月13日
5

Good! Must try!

Version 0.0.6Language en
1 helpful · 0 not helpful
Zzoe2024年5月10日
5

This is a total lifesaver! Copying and downloading test cases is a breeze, and the custom test page makes debugging a whole lot less of a headache. Seriously, it's a game-changer for anyone into competitive coding on Atcoder.

Version 0.0.3Language en
2 helpful · 0 not helpful