Free in-browser relaxation tools: a live sound mixer, breathing exercises, meditation and focus timers, sleep and caffeine calculators, journals and mood trackers.
41 simulations60 fps real-time0 install stepsFree in-browser relaxation tools: a live sound mixer, breathing exercises, meditation and focus timers, sleep and caffeine calculators, journals and mood trackers.
No. Everything runs entirely in your browser — no downloads, plugins or accounts. Works in Chrome, Firefox, Edge and Safari; most simulations also work on mobile.
Yes — all content is free for educational use under CC BY 4.0. Link to any simulation directly or embed it in your LMS with an iframe; no API key required.
They use the same mathematical formulations as professional software, integrated numerically in real time. Each simulation lists its algorithms, and many link to an article explaining the mathematics.