BetterCF

Supercharge Your Codeforces Experience

Enhance your competitive programming journey with a modern UI, dark mode, problem tags, and powerful analytics embedded right into Codeforces.

Used by hundreds of competitive programmers worldwide

Empower Your Codeforces Experience

Enhance your competitive programming with a modern UI, beautiful dark mode, analytics, and much more.

Beautiful Dark Mode
Easily code at night without hurting your eyes.

switch (type) {
 case 'success':
 return {
          border: theme === 'dark' ? 'border-[rgba(34,197,94,0.4)]' : 'border-green-200',
 icon: (
            <svg className={'baseIconClasses'} fill="none" viewBox="0 0 14 14">
 <path
                d="M3.85156 7.875L6.47656 10.5L10.8516 3.5"
                stroke="var(--ai-primary-color)"
                strokeLinecap="round"
                strokeLinejoin="round"
                strokeWidth="1.5"
 />
 </svg>

switch (type) {
 case 'success':
 return {
          border: theme === 'dark' ? 'border-[rgba(34,197,94,0.4)]' : 'border-green-200',
 icon: (
            <svg className={'baseIconClasses'} fill="none" viewBox="0 0 14 14">
 <path
                d="M3.85156 7.875L6.47656 10.5L10.8516 3.5"
                stroke="#22C55E"
                strokeLinecap="round"
                strokeLinejoin="round"
                strokeWidth="1.5"
 />
 </svg>

Real-time analytics
Get performance metrics and problem insights directly on Codeforces.

switch (type) {
 case 'success':
 return {
 border: theme === 'dark' ? 'border-[rgba(34,197,94,0.4)]' : 'border-green-200',
 icon: (
 <svg className={baseIconClasses}fill="none" viewBox="0 0 14 14">
 <path
 d="M3.85156 7.875L6.47656 10.5L10.8516 3.5"
 stroke="var(--realtime-primary-color)"
 strokeLinecap="round"
 strokeLinejoin="round"
 strokeWidth="1.5"
 />
 </svg>

Download for macOS

Problem Tags & Hints
Toggle problem tags and view hints seamlessly when stuck.

Customizable Theme
Effortlessly manage and configure the look and feel of your workspace.

Search for servers

Figma

Installed

Shadcn UI

Next.js

Installed

Tailwind CSS

Resend

Installed

React

Contest Reminders
Never miss an incoming coding contest with smart alerts.

Update buttons

12k tokens • o3 • pointer/update-pain...

Fix sanity issue

12k tokens • claude-sonnet-4 • pointer/update-pain...

Plan for seamless toast

30k tokens • o3 • pointer/update-pain...

Setup made easy
Just install the browser extension and enjoy the new features instantly.

[16:37:25.637] Running build in Washington, D.C., USA (East) – iad1
[16:37:25.638] Build machine configuration: 2 cores, 8 GB
[16:37:25.653] Retrieving list of deployment files...
[16:37:25.741] Previous build caches not available
[16:37:25.979] Downloading 84 deployment files...
[16:37:29.945] Running "vercel build"
[16:37:30.561] Vercel CLI 44.5.0
[16:37:30.880] Running "install" command: `bun install`...
[16:37:30.914] bun install v1.2.19 (aad3abea)
[16:37:30.940] Resolving dependencies
[16:37:34.436] Resolved, downloaded and extracted [1116]
[16:37:34.436] warn: incorrect peer dependency "react@19.1.0"
[16:37:37.265] Saved lockfile
[16:37:39.076] Next.js anonymous telemetry notice
[16:37:39.137] ▲ Next.js 15.2.4
[16:37:41.439] ✓ Compiled successfully
[16:37:53.979] ✓ Generated static pages
[16:38:00.585] ○ (Static) prerendered as static content
[16:38:01.099] Build Completed in /vercel/output [30s]
🚀 Deployment complete – Easy!

BetterCF's dark mode and modern UI have completely transformed my Codeforces experience. It's an indispensable tool for late-night contests.

Alexey

Grandmaster

Installation

Get started with BetterCF by installing the extension on your favorite browser.

Install for Chrome Install for Firefox

A game changer for competitive programming

Hear how competitive programmers solve problems faster
and improve their ratings using BetterCF.

The dark mode and improved UI provided by BetterCF makes night-time coding sessions on Codeforces an absolute joy. It has reduced my eye strain significantly.

Annette Black

Student

Installing BetterCF was a breeze, and the problem tags toggle has saved me from accidental spoilers.

Dianne Russell

Competitive Programmer

BetterCF's contest reminder feature has been a game-changer. I never miss a Div 2 round anymore!

Cameron Williamson

Grandmaster

I used to hate the default Codeforces UI, but with BetterCF, everything just looks so modern and clean. It’s hard to go back.

Robert Fox

Candidate Master

I tried BetterCF just to see the dark mode, and now I can't imagine participating in a contest without it.

Darlene Robertson

Expert

The analytics and performance charts on profile pages are fantastic. The insights truly help me understand my progression.

Cody Fisher

Specialist

Customizing the colors and themes on Codeforces makes the platform feel personal to me. Highly recommended for every competitive programmer out there.

Albert Flores

Master

Frequently Asked Questions

Everything you need to know about BetterCF and how it can transform your Codeforces workflow.

What is BetterCF and who is it for?

BetterCF is a browser extension designed for competitive programmers using Codeforces. It provides a modern UI, dark mode, problem analytics, and other enhancements to improve your coding workflow.

How do I install BetterCF?

Simply visit the Chrome Web Store or Firefox Add-ons page, search for 'BetterCF', and click 'Add to browser'. Once installed, the extension works automatically on Codeforces.

Is BetterCF free to use?

Yes! BetterCF is completely free and open-source. We believe in making the competitive programming experience better for everyone.

Does BetterCF support dark mode on all Codeforces pages?

Yes, BetterCF provides a carefully crafted dark mode that works seamlessly across all Codeforces pages, including problems, contests, blogs, and profiles.

Can I customize the features?

Absolutely. BetterCF comes with a settings dashboard where you can toggle specific features, customize themes, and tweak the layout to your preference.

Is BetterCF safe?

Yes. BetterCF is open-source, and all the code is publicly available. It only runs on Codeforces and does not collect or transmit any of your personal data.

Codeforces made beautiful

Join thousands of competitive programmers who use BetterCF to supercharge their coding journey.