AlgoRadar

Name: AlgoRadar
Rating: 4.7 (40 reviews)
Author: nilanshucodes

Track upcoming coding contests from Codeforces, AtCoder, LeetCode, CodeChef and more

As of June 2026, AlgoRadar has 64 users and a 4.70/5 rating from 40 reviews in the Productivity category.

nilanshucodes Productivity

Chrome Web Store ↗.crx

Users−27.3%

Rating+0.2%

4.70

40 reviews

Reviews+2.6%

Version

1.2.0

Manifest V3

History

9 snapshots

Tracking since Apr 1, 2026.

View as table

Date	Users	Rating	Reviews	Version
Apr 1, 2026	88	4.69	39	1.2.0
Apr 10, 2026	90	4.69	39	1.2.0
Apr 20, 2026	94	4.69	39	1.2.0
Apr 25, 2026	95	4.70	40	1.2.0
May 6, 2026	95	4.70	40	1.2.0
May 12, 2026	72	4.70	40	1.2.0
May 21, 2026	77	4.70	40	1.2.0
May 31, 2026	54	4.70	40	1.2.0
Jun 8, 2026	62	4.70	40	1.2.0
Now	64	4.70	40	1.2.0

Permissions & access

Permissions: storagealarms
Host access: https://algoradar-extension.vercel.app/api/contests.js

Screenshots

About

Never Miss a Coding Contest Again!

AlgoRadar is a lightweight Chrome extension that helps competitive programmers never miss a coding contest. Track upcoming contests from Codeforces, AtCoder, LeetCode, and CodeChef in one clean, fast interface.

➤ What it does
• Filter contests by platform and time (Today, This Week, This Month, All)
• Shows up to 20 upcoming contests per platform
• Accurate live countdown timers
• Contest times automatically adapt to your local timezone

➤ Performance
• Auto refresh every 20 minutes
• Smart caching for faster loading
• Works offline using cached data

➤ Privacy first
• No ads
• No tracking or analytics
• Free and open source

➤ Open Source :
https://github.com/nilanshucodes/algoradar-extension

Built for Codeforces grinders, AtCoder regulars, and anyone serious about competitive programming — minus the clutter.