One-Task Tab

Focus on one most important task at a time, every time you open a new tab.

One-Task Tab is a minimalist new tab extension designed to reduce task overload, decision fatigue, and digital distraction. Write down the one thing that matters most and press Enter to lock it in. You cannot add another task until the current one is complete—helping you stay focused on what matters right now. Key features: - Keep exactly one active task - Finish the current task before adding another - Switch between day and night themes - Automatically adapt to your browser language - Save your task and theme locally - No account required - No ads, tracking, or data collection - No browser permissions requested Your task never leaves your device. One-Task Tab works entirely inside your browser, providing a calm and private space to focus—one thing at a time.