Extension Tracker

Competitive Companion

100,000 users Rated 4.78 from 115 ratings Last updated 1 Jul 2026

By Jasper van Merle Live in the Chrome Web Store cjnmckjndlpiamhfimnnjmnckgghkjbl Last checked 26 Sep 2026, 23:12 UTC

The listing

What the Chrome Web Store shows, as of the last check

Parses competitive programming problems and sends them to various tools like CP Editor and CPH.Summary from the listing
Developer
Jasper van Merle
Trader status
Not declared a trader under EU law
Category
Productivity › Developer Tools
First published
10 Dec 2017
Last updated
1 Jul 2026
Version
2.65.0
Size
576 KiB
Minimum Chrome
88
Languages
1 language

English (United States)

Open in the Chrome Web Store ↗ Download the CRX from Google ↗
Users over time As shown on the Chrome Web Store

Tracking began on 26 Sep 2026. The chart appears after the second check.

Show the numbers
CheckedUsersRatingRatings
2026-09-26100,0004.78115
Users, 7 days
–
needs a week of history
Users, 30 days
–
needs a month of history
Rank
#1,082
by users, of 264,254 extensions
In its category
#97
of 27,566 in Developer Tools

What changed

Every change found on a check, newest first

No changes found since tracking began on 26 Sep 2026.

What it can access

From the extension's manifest, in plain language

Sites
  • http://localhost/localhost
Browser features
  • activeTabThe tab you're on, only after you click the extension
  • contextMenusAdd items to the right-click menu
  • scriptingRun scripts on sites it can reach
  • storageSave settings and data in your browser
Asked for later, if you agree
  • https://api.tlx.toki.id/v2/*api.tlx.toki.id
  • https://codejam.googleapis.com/dashboard/get_file/*codejam.googleapis.com
  • https://resources.beecrowd.com/*resources.beecrowd.com

More from this developer

Other extensions from the same publisher account

ExtensionUsersRatingRatingsCategory
CG Local661 5.005 Developer Tools
All 2 extensions by Jasper van Merle →

About this data

Collected from the extension's public Chrome Web Store listing. It's checked every week, because it has 1,000 or more users, and again whenever a new version appears. Last checked 26 Sep 2026, 23:12 UTC; next check around 1 Oct 2026.

We don't copy descriptions, screenshots or developers' contact details. How we collect the data

Cite this page

Extension Tracker. “Competitive Companion” (cjnmckjndlpiamhfimnnjmnckgghkjbl). Chrome Web Store data, last checked 2026-09-26. https://extensiontracker.com/extension/cjnmckjndlpiamhfimnnjmnckgghkjbl. Accessed 2026-09-27.
BibTeX
@misc{extensiontracker_cjnmckjndlpiamhfimnnjmnckgghkjbl,
  title   = {Competitive Companion (cjnmckjndlpiamhfimnnjmnckgghkjbl)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-09-26},
  url     = {https://extensiontracker.com/extension/cjnmckjndlpiamhfimnnjmnckgghkjbl},
  urldate = {2026-09-27}
}

The data is free to reuse under CC BY 4.0.