Tic Tac Toe, Right in Your Browser

A quick game of Tic Tac Toe shouldn't need a website, an account, or an internet connection. This extension lives in your Chrome side panel so you can play a round — against the AI or a friend — during any short break.

The Ultimate Tic Tac Toe (XO) Experience Looking for a quick brain break? Tic Tac Toe Online brings the timeless strategy of Noughts and Crosses to your browser with a stunning Modern-Retro Neon design. Whether you're killing time or sharpening your mind, our unbeatable AI ensures every match is a challenge. 🚀 2026 Trending Features 🆕 Chrome Side Panel Support: Play while you browse! Open the game in your side panel to keep the board visible while working or watching videos. 🤖 Unbeatable Minimax AI: Think you're good? Challenge our "Master" difficulty bot—it's mathematically impossible to beat. Can you at least force a draw? 👥 Local 2-Player Mode: Challenge a friend on the same screen for instant competitive fun. 📴 100% Offline Gameplay: Perfect for flights, commutes, or areas with no Wi-Fi. No internet, no problem. 🔒 Privacy-First Design: No ads, no tracking, and Zero Permissions required. Your data stays yours. 🎮 How to Play 1️⃣ Select Mode: Choose "Vs AI" for a solo challenge or "2 Players" for a friend. 2️⃣ Make Your Move: Click any square (X goes first). 3️⃣ Win the Match: Get 3 in a row (horizontal, vertical, or diagonal). 4️⃣ Celebrate: Enjoy the custom confetti effects for every victory!