CP Calendar
Developer Tools
An extension that keeps users updated about Coding or Competitive Programming contests.
Users
4K
Rating
4.2
Reviews
46
7D Growth
+1K|33.3%
Growth signalNo paid features detectedLow-risk permissions
CP Calendar
Chrome extension for checking Competitive programming contests schedule organized by various platforms.
Users770Current public install base
Rating4.1Store average score
Reviews10Public review volume
Manifest versionV3Extension platform version
7-day growth+23Net users gained this week
7-day growth rate+3.08%Relative weekly velocity
Preview
4 assetsCP Calendar Media preview
Trend
User growth trend
Review user movement across collected snapshots.
User Growth Over Time
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
4.10
Latest
4.10
7-day rating change
0.00
2026年7月15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 growthGrowing
+18+2.39%7-day growthGrowing
+23+3.08%30-day growthGrowing
+10+1.32%Technical snapshot
Version, languages, and crawl freshness
Review publication date, version, supported languages, and crawl timestamps.
Version3.0.0
ManifestV3
Size1.57MiB
Languages1English
Published
Store updated
Last crawled
English
Overview
Product summary
Review the store description, core capabilities, and common use cases.
Get every contest schedule details at one place
Shows schedule for today's and upcoming contests
Simple dropdown menu for filtering by platforms
Supports nearly every contest platform
Minimal Dark UI
Blazing fast!
Reviews
Recent review snapshot
Inspect the latest comments and rating distribution.
Store average score4.1Chrome Web Store aggregate rating, including ratings without synced review text
Synced text average4.9Average computed only from synced review bodies below
Reviews with text7Synced review bodies
Total ratings / reviews10Chrome Web Store public rating/review count
Store average score: 4.1. 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.
Related products
Similar and related extensions
Review related products from the Chrome Web Store detail page.
Contest Calendar
Workflow & Planning
Calendar for all the upcoming contests on different competitive programming platforms like Codeforces, Codechef, Leetcode, etc.
Users
354
Rating
4.6
Reviews
9
7D Growth
-1|-0.28%
CodingBuddy
Workflow & Planning
FreemiumConfidence 64
Never miss a Coding contest again! Displays live and upcoming Programming Contests happening on a variety of popular platforms.
Users
5K
Rating
4.6
Reviews
95
7D Growth
--|--
Competitive Companion
Developer Tools
Parses competitive programming problems and sends them to various tools like CP Editor and CPH.
Users
100K
Rating
4.8
Reviews
111
7D Growth
0|0%
Carrot
Workflow & Planning
Rating predictor for Codeforces
Users
60K
Rating
4.2
Reviews
80
7D Growth
+10K|20%
CF-Predictor
Developer Tools
This extension predicts rating changes for Codeforces. It shows approximate deltas during and after the contest.
Users
50K
Rating
4.1
Reviews
171
7D Growth
0|0%
Really helpful
well done. Please keep Active this
Add add to Calendar feature
Awesome , It's very handy to use.
Very useful
Best extension on entire web
Mast maaal hai toh. ^_^