Lull — a calm button

One click to a calm space: guided breathing + generative ambient sound, over whatever page you're on. On-device, no tracking.

Lull is a calm button for anxious moments. Click the toolbar icon and the page you're on softly blurs away into a calm space: • A slow, paced-breathing orb (in 4s · hold 3s · out 6s · rest 2s) to settle your body • An infinite, generative ambient soundscape — synthesized live in your browser, never repeating • Click again or press Esc to return 100% ON-DEVICE Everything runs locally. No webcam, no microphone, no network requests, no accounts, no tracking, no analytics. The sound is pure Web Audio synthesis — there are no audio files and nothing is streamed. HONEST NOTE Lull is a comfort and self-regulation tool — not medical care, and not a substitute for therapy or professional help. Paced breathing genuinely helps calm the body in the moment, but if anxiety is intense or persistent, please talk to a professional. If you're in crisis, reach out to someone you trust or a helpline.