Contest Radar

by rahuljavalagi · Education

Manifest V3 Free

View in Chrome Web Store Data as of 15 Oct 2026

Real-time updates on upcoming and completed contests from Codeforces, CodeChef, and LeetCode.

Users

+3 in 30 days

Rating

5.0 / 5

+5.00 in 30 days

Ratings

+1 in 30 days

Store rank

#229K

#191K among extensions

Version

1.0.0

updated 3 Sep 2026

Users

monthly, 1 months

Latest, 15 Oct 2026: 6 usersMove the mouse over the chart for any month

Ratings count

monthly, 1 months

Latest, 15 Oct 2026: 1 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 Contest Radar

Stay on top of competitive programming contests with ease. This extension helps you quickly check upcoming and past contests from Codeforces, CodeChef, and LeetCode — all in one place. It shows: - Contest date and time - A live countdown adjusted to your device’s local time - Direct links to the official contest pages ⚡ Privacy‑friendly: Contest Radar runs entirely on your device. No external servers, no data collection. 🔗 Accurate sources: Contest information is fetched directly from the respective platform APIs. 🛠 Optional API key support: If a platform’s public API becomes unavailable, you can add your own personal API key in the extension settings to continue fetching contest data. Disclaimer: Contest Radar only aggregates publicly available contest schedules. All rights belong to the respective platforms.