Carrot

Rating predictor for Codeforces

As of May 2026, Carrot has 50,000 users and a 4.12/5 rating from 81 reviews in the Workflow & Planning category.

Usersno change0%
50.0K
50,000
Ratingdown 1.9 percent1.9%
4.12
81 reviews
Reviewsup 2.5 percent+2.5%
81
Version
0.6.8
Manifest V3

History

2 snapshots

Tracking since May 1, 2026.

50.6K50.0K49.4KMay 1, 2026May 30, 2026
View as table
DateUsersRatingReviewsVersion
May 1, 202650.0K4.20790.6.8
May 30, 202650.0K4.19780.6.8
Now50.0K4.12810.6.8

Permissions & access

Permissions
storageunlimitedStorage
Host access
*://*.codeforces.com/*

Screenshots

Carrot screenshot 1

About

Carrot enhances Codeforces ranklists.

For an active contest:
Carrot calculates rating changes according the current standings when you open the ranklist, and displays them in a new column. Carrot also adds a column showing the delta required to rank up. The delta calculation is done in real time a̶n̶d̶ ̶i̶s̶ ̶1̶0̶0̶%̶ ̶a̶c̶c̶u̶r̶a̶t̶e̶ (see note below).

For a finished contest:
Carrot displays the final deltas of each contestant in a new column and shows their rank change, if any, in an adjacent column.

For both active and finished contests, Carrot displays a column for performance, the rating at which the delta would be zero.

Each of Carrot's columns can be toggled according to your preference, so as to not clutter the ranklist more than you would like.

Carrot communicates only with the Codeforces API and runs entirely in the browser.

Note: Since all required data is fetched and processed in the browser, Carrot is not ideal if you have a low data cap on your network. If so I recommend using CF-Predictor instead: https://codeforces.com/blog/entry/50411
Note: The rating calculation is no longer 100% accurate since the new rating system was introduced. See https://github.com/meooow25/carrot/pull/18 for details.

Bug reports/suggestions? Feel free to open an issue at https://github.com/meooow25/carrot/issues

Technical

Version
0.6.8
Manifest
V3
Size
47.38KiB
Min Chrome
88
Languages
1
Featured
Yes

Metadata

ID
gakohpplicjdhhfllilcjpfildodfnnn
Developer ID
u1d0dbd41dc0804f0c5c6898bb340e10c
Developer Email
[email protected]
Created
May 2, 2020
Last Updated (Store)
Mar 11, 2025
Last Scraped
May 30, 2026
Website
Privacy Policy

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Data sourced from the Chrome Web Store · last verified May 30, 2026.