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⚡ Built for Competitive Programmers
Contest Bell watches Codeforces, CodeChef, LeetCode, AtCoder and HackerRank 24/7 and sends you smart notifications — 1 day before, 1 hour before, and the moment a new contest is announced.
✅ Free to use · ✅ No credit card · ✅ 2 minute setup
Platforms Covered
Notifications Per Contest
Free to Use
Missed Contests
Designed specifically for competitive programmers who are serious about their practice.
Get notified the moment a contest is announced, again 1 day before it starts, and a final reminder 1 hour before — so you never get caught off guard.
Only care about Codeforces Div. 1 and Div. 2? Filter it. You choose exactly which subdivisions matter to you — no noise, only what's relevant.
Codeforces, CodeChef, LeetCode, AtCoder, HackerRank — all in one place. Subscribe to any combination and manage everything from a single dashboard.
Notifications land directly in your inbox. No app to install, no extra account — just your email and you're set.
Update your subscriptions any time. Add a new platform, drop one, change divisions — your preferences, your rules.
Register, verify your email, pick your platforms and divisions. Done in under 2 minutes. We handle the rest automatically.
No complicated setup. No technical knowledge needed.
Sign up with your email. We'll send you a quick verification link to confirm it's you — takes 30 seconds.
Select the platforms and divisions you compete on. Codeforces Div. 2 only? LeetCode + AtCoder? You decide.
We monitor contests around the clock and email you at the right moments. Focus on solving problems — we handle the schedule.
We track contests across all the major competitive programming platforms.
"The best competitive programmers don't just code harder — they prepare smarter."
Stop manually checking contest schedules every week. Let Contest Bell do it for you.
Create Your Free Account →