Anxiety Relief Box is a free browser-based toolkit with three evidence-based anxiety management techniques: guided breathing exercise, 5-4-3-2-1 grounding technique, and positive affirmation generator. Each technique targets different aspects of the anxiety response and can be used independently or sequentially. The breathing exercise uses a 4-4-4-2 box breathing pattern — inhale 4 seconds, hold 4 seconds, exhale 4 seconds, hold 2 seconds — guided by a smooth animated circle that expands and contracts. Box breathing is used by Navy SEALs and first responders to rapidly calm the nervous system by activating the parasympathetic response. The 5-4-3-2-1 grounding technique walks you through a sensory checklist that pulls your brain out of anxious thought loops and into present-moment awareness. This technique is a cornerstone of dialectical behavior therapy (DBT) for anxiety and panic. Each step has a clear visual indicator showing your progress through the five senses. The positive affirmation generator displays encouraging statements based on cognitive behavioral therapy principles, focusing on self-compassion, resilience, and acceptance. Click to generate a new affirmation whenever you need one. This free anxiety relief tool is designed for anyone experiencing stress, anxiety, panic attacks, or overwhelm. It is particularly helpful for people with ADHD, who often experience co-occurring anxiety. All techniques run locally in your browser with no data collection. Use it before stressful meetings, during panic episodes, at bedtime for relaxation, or as part of a daily mindfulness practice.

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