Scratcher's AtCoder icon

Scratcher's AtCoder

by yos1up · Just for Fun
Manifest V3 Free
View in Chrome Web Store Data as of 15 Oct 2026

for Scratchers who want to compete in AtCoder

Users
2,000
0 in 30 days
Rating
4.2 / 5
unchanged in 30 days
Ratings
6
0 in 30 days
Store rank
#21K
#18K among extensions
Version
1.5.0
updated 19 Nov 2025

Users

monthly, 3 years
1001,0502,000Aug 2023Apr 2025Oct 2026
Latest, 15 Oct 2026: 2,000 usersMove the mouse over the chart for any month

Ratings count

monthly, 3 years
146Aug 2023Apr 2025Oct 2026
Latest, 15 Oct 2026: 6 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About Scratcher's AtCoder

(The description in English is provided below Japanese.) # はじめに この拡張機能を使うと,Scratch 3.0 で AtCoder に参加できるようになります! # 使い方 (1) AtCoder の解答フォームの横にある,オレンジ色の「Scratch 3.0 オンラインエディタ」ボタンをクリックして,オンラインエディタを開きます. (2) Scratch オンラインエディタ上で,解答コードを作成します.完成したら,Scratch プロジェクトをローカルファイルにダウンロードします(画面左上のメニューから「ファイル」→「コンピューターに保存する」). (3) AtCoder に戻り,オレンジ色の「Scratch 3.0 プロジェクトをロード」ボタンをクリックして,(2)でダウンロードしたプロジェクトファイルを選択します. (4) Scratch プロジェクトが瞬時に C++ ソースに変換され,解答フォームに表示されます. (5) そのまま解答を提出しましょう!(言語は "C++14(GCC5.4.1)"(またはそれより新しいバージョン)を選択してください) # Scratch での解答例 https://scratch.mit.edu/studios/5346476/ # リンク GitHub: https://github.com/yos1up/scratch2cpp/tree/master/web/crx Twitter: @yos1up =*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*= # Introduction With this extension, you can compete in AtCoder with Scratch 3.0! # Usage (1) Go to a submission form of AtCoder, and click orange "Scratch 3.0 online editor" button to open the online editor. (2) Create your solution in Scratch online editor. If your solution is ready, download your Scratch project to a local file. ([File] -> [Save to your computer]) (3) Return to AtCoder and click the orange "Load Scratch project" button. Then select your Scratch project file you downloaded in (2). (4) Your Scratch project file will be instantly converted to C++ source, and displayed in the solution form. (5) Submit it! (Make sure that "C++14(GCC 5.4.1)" (or newer) is selected as the language.) # Examples of solutions https://scratch.mit.edu/studios/5346476/ # Links GitHub: https://github.com/yos1up/scratch2cpp/tree/master/web/crx Twitter: @yos1up

Growth

WindowUsersChangeRatingsRating
7 days0+0.0%00.00
30 days0+0.0%00.00
6 months0+0.0%00.00
1 year+1,000+100.0%+1+0.17

Version history

4 versions recorded
1.5.019 Nov 2025
1.4.031 Oct 2023
1.3.05 Mar 2021
1.2.122 Dec 2019

Details

Category
Just for Fun
First seen
22 Dec 2019
Size
1.4 MB
Languages
en
Pricing
Free
Support
github.com
Extension ID
hackndbjgkehhjinjjoldifbhnfddklh

Permissions and risk

Low riskimpact 1, likelihood 2

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