# ASMR Sanctuary

> Free browser-based PWA for relaxation, sleep, focus and mindfulness. ASMR soundscapes, binaural beats, guided breathing, meditations, journals, sleep tools — all synthesised in-browser via Web Audio API + Canvas 2D. No accounts, no tracking, full offline support via Service Worker.

> **For LLM-friendly full content:** see [llms-full.txt](https://asmr-relax.top/llms-full.txt) — full Markdown dump of all priority guides, glossary terms, comparisons and calculators.

ASMR Sanctuary is a static progressive web app delivering audio-driven and visual wellness tools: 67+ ambient and ASMR sounds, binaural beat generators (Delta/Theta/Alpha/Gamma), 12 structured breathing exercises, 12 guided meditations, sleep stories, journals, gratitude trackers, mindfulness challenges and a library of evidence-based wellness guides. All assets cached offline via service worker; all sounds and visuals synthesised live (no audio files, no video files).

## Core Tools

- [Homepage](https://asmr-relax.top/): featured session, recent activity, ambient mode
- [Sound Mixer](https://asmr-relax.top/pages/sounds.html): 67 synthesised ambient sounds + mix saving + binaural beats
- [Visual Simulations](https://asmr-relax.top/pages/visuals.html): 83 canvas-rendered animations
- [Triggers](https://asmr-relax.top/pages/triggers.html): interactive ASMR triggers (keyboard, bubble wrap, etc.)
- [Focus Mode](https://asmr-relax.top/pages/focus.html): sound + visual + breathing + session timer
- [Timer](https://asmr-relax.top/pages/timer.html): Pomodoro, countdown, focus block modes
- [Mood Presets](https://asmr-relax.top/pages/mood.html): 10 mood-based quick-launch presets
- [Settings](https://asmr-relax.top/pages/settings.html): themes, font size, data export/import

## Wellness Tools

- [Guided Breathing](https://asmr-relax.top/pages/breathe.html): 12 techniques with animated pacer + voice
- [Guided Meditation](https://asmr-relax.top/pages/meditation.html): 12 sessions, 5-20 min
- [Sleep Wind-Down](https://asmr-relax.top/pages/sleep.html): 3-stage drift-off routine
- [Sleep Stories](https://asmr-relax.top/pages/sleepstories.html): 10 text narratives with ambient backdrop
- [Body Scan](https://asmr-relax.top/pages/bodyscan.html): guided progressive relaxation
- [Anxiety Relief](https://asmr-relax.top/pages/anxiety.html): crisis toolkit with panic-attack protocol
- [Breathing Lab](https://asmr-relax.top/pages/breathlab.html): custom inhale/hold/exhale pattern builder
- [Affirmations](https://asmr-relax.top/pages/affirmations.html): 31+ built-in + custom, TTS read-aloud
- [Mindfulness Journal](https://asmr-relax.top/pages/journal.html): mood tracking, emotion wheel, templates
- [Gratitude Journal](https://asmr-relax.top/pages/gratitude.html): daily 3-item prompts + weekly summary
- [Binaural Studio](https://asmr-relax.top/pages/binaural.html): Delta/Theta/Alpha/Gamma frequency generator
- [Stretching Guide](https://asmr-relax.top/pages/stretch.html): gentle 5/10/15-min routines

## Ambient Tools

- [White Noise Lab](https://asmr-relax.top/pages/whitenoise.html): white/pink/brown noise
- [Nature Soundscapes](https://asmr-relax.top/pages/soundscapes.html): pre-built environment mixes
- [Relaxation Radio](https://asmr-relax.top/pages/radio.html): continuous play
- [Soundscape Creator](https://asmr-relax.top/pages/creator.html): build custom soundscapes
- [Focus Playlists](https://asmr-relax.top/pages/playlists.html): curated focus mixes
- [Morning Ritual](https://asmr-relax.top/pages/morning.html): wake-up routine
- [Evening Wind-Down](https://asmr-relax.top/pages/evening.html): pre-sleep routine
- [Desk Breaks](https://asmr-relax.top/pages/deskbreaks.html): micro-pause prompts
- [Nature Walks](https://asmr-relax.top/pages/walks.html): walking meditation prompts
- [Mindful Eating](https://asmr-relax.top/pages/eating.html): eating meditation guide
- [Check-in](https://asmr-relax.top/pages/checkin.html): daily wellness check
- [Community Mixes](https://asmr-relax.top/pages/community.html): pre-built shared mixes

## Calculators & Tools

- [Sleep Cycle Calculator](https://asmr-relax.top/pages/sleep-calculator.html): bedtime/wake-time generator using 90-minute REM cycles + 14-minute fall-asleep buffer
- [Breathing Ratio Calculator](https://asmr-relax.top/pages/breath-calculator.html): inhale/hold/exhale/hold-out sliders with live BPM and energizing/balanced/calming/sleep-prep categorization
- [Decibel Chart](https://asmr-relax.top/pages/decibel-guide.html): interactive 0–140 dB slider with everyday sound matches, hearing-safety zones and NIOSH exposure times
- [Caffeine Half-Life Calculator](https://asmr-relax.top/pages/caffeine-calculator.html): residual caffeine over 24h using 5-hour half-life formula with bedtime warning
- [Pomodoro Planner](https://asmr-relax.top/pages/pomodoro-planner.html): full-day Pomodoro schedule generator with presets (25/5, 50/10, 15/3, 90/20) and copy-to-clipboard

## Tracking & History

- [Wellness Stats](https://asmr-relax.top/pages/stats.html): cross-tool stats overview
- [Session History](https://asmr-relax.top/pages/history.html): per-session log + heatmap
- [Breathing Stats](https://asmr-relax.top/pages/breathstats.html): breathing technique history
- [7-Day Challenge](https://asmr-relax.top/pages/challenges.html): structured weekly mindfulness
- [30-Day Challenge](https://asmr-relax.top/pages/challenge30.html): extended mindfulness programme
- [ASMR Dictionary](https://asmr-relax.top/pages/dictionary.html): 30+ ASMR terms glossary

## Evidence-Based Guides

- [What is ASMR](https://asmr-relax.top/pages/what-is-asmr.html): definition, science, common triggers
- [ASMR Benefits](https://asmr-relax.top/pages/asmr-benefits.html): research-backed effects on anxiety, sleep, mood
- [Best ASMR Sounds for Sleep](https://asmr-relax.top/pages/best-sounds.html): curated comparison
- [Binaural Beats Guide](https://asmr-relax.top/pages/binaural-guide.html): frequency bands explained
- [Breathing Techniques Guide](https://asmr-relax.top/pages/breathing-guide.html): when and how to use each
- [Sleep Hygiene Tips](https://asmr-relax.top/pages/sleep-tips.html): 30-min wind-down protocol
- [Mindfulness Guide](https://asmr-relax.top/pages/mindfulness-guide.html): 5-minute beginner practice
- [Stress Relief Techniques](https://asmr-relax.top/pages/stress-relief.html): evidence-based methods
- [Focus & Productivity Guide](https://asmr-relax.top/pages/focus-guide.html): attention research
- [Pomodoro Technique](https://asmr-relax.top/pages/pomodoro.html): time-boxing how-to
- [ASMR for Kids](https://asmr-relax.top/pages/asmr-kids.html): age-appropriate use
- [Sound Therapy Science](https://asmr-relax.top/pages/sound-therapy.html): vibroacoustic basics
- [Nature Sounds Benefits](https://asmr-relax.top/pages/nature-sounds-guide.html): restorative environments
- [Digital Wellness](https://asmr-relax.top/pages/digital-wellness.html): screen-time balance
- [Meditation for Beginners](https://asmr-relax.top/pages/meditation-guide.html): starter framework

## Sound Landings

Per-sound SEO landings with research context, use cases and CTA into Sound Mixer:

- [Rain](https://asmr-relax.top/pages/sound-rain.html), [Thunder](https://asmr-relax.top/pages/sound-thunder.html), [Ocean](https://asmr-relax.top/pages/sound-ocean.html)
- [White Noise](https://asmr-relax.top/pages/sound-white-noise.html), [Brown Noise](https://asmr-relax.top/pages/sound-brown-noise.html), [Pink Noise](https://asmr-relax.top/pages/sound-pink-noise.html)
- [Fireplace](https://asmr-relax.top/pages/sound-fireplace.html), [Forest](https://asmr-relax.top/pages/sound-forest.html), [Night Rain](https://asmr-relax.top/pages/sound-night-rain.html), [Rain on Glass](https://asmr-relax.top/pages/sound-rain-on-glass.html)
- [Cat Purring](https://asmr-relax.top/pages/sound-cat-purring.html), [Heartbeat](https://asmr-relax.top/pages/sound-heartbeat.html), [Wind Chimes](https://asmr-relax.top/pages/sound-wind-chimes.html), [Cafe](https://asmr-relax.top/pages/sound-cafe.html), [Lofi](https://asmr-relax.top/pages/sound-lofi.html)
- [Binaural Delta](https://asmr-relax.top/pages/sound-binaural-delta.html), [Binaural Theta](https://asmr-relax.top/pages/sound-binaural-theta.html), [Binaural Alpha](https://asmr-relax.top/pages/sound-binaural-alpha.html), [Binaural Gamma](https://asmr-relax.top/pages/sound-binaural-gamma.html)
- [Deep Om](https://asmr-relax.top/pages/sound-deep-om.html), [Tibetan Bowl](https://asmr-relax.top/pages/sound-tibetan-bowl.html)

## Compare & Alternatives

Fair, side-by-side comparison pages explaining how ASMR Sanctuary differs from popular wellness apps. Each page acknowledges competitor strengths and positions ASMR Sanctuary as the free, private, offline alternative.

- [Calm Alternative](https://asmr-relax.top/pages/vs-calm.html): free browser-based meditation alternative to Calm
- [Headspace Alternative](https://asmr-relax.top/pages/vs-headspace.html): offline mindfulness & meditation alternative to Headspace
- [Insight Timer Alternative](https://asmr-relax.top/pages/vs-insight-timer.html): privacy-first alternative without account or community feed
- [MyNoise Alternative](https://asmr-relax.top/pages/vs-mynoise.html): browser soundscape mixer with binaural beats and visuals
- [Noisli Alternative](https://asmr-relax.top/pages/vs-noisli.html): free focus-sounds mixer with visuals, breathing and meditation
- [Best Free Wellness Apps 2026](https://asmr-relax.top/pages/best-free-wellness-apps.html): honest roundup of seven leading apps with feature matrix

## Embeddable Widgets

- [Embed Widgets Documentation](https://asmr-relax.top/pages/embed.html): copy-paste iframe widgets free for blogs & apps, with live previews and customisation params
- [Breathing Pacer Embed](https://asmr-relax.top/pages/embed-breathing.html): animated breathing circle (box, 4-7-8, coherent 5-5, calm 4-6) — 320×280
- [Focus Timer Embed](https://asmr-relax.top/pages/embed-timer.html): Pomodoro / Deep / Sprint / Custom countdown with bell — 320×300
- [Mini Sound Player Embed](https://asmr-relax.top/pages/embed-sound.html): synthesised rain / thunder / ocean / white / brown noise — 320×220

## About & Policy

- [About](https://asmr-relax.top/pages/about.html): mission, FAQ (16 questions), tech stack
- [Resources](https://asmr-relax.top/pages/resources.html): external wellness links
- [Changelog](https://asmr-relax.top/pages/changelog.html): release notes
- [Sitemap](https://asmr-relax.top/pages/sitemap.html): browsable index
- [Contact](https://asmr-relax.top/pages/contact.html): feedback form + suggestion voting
- [Privacy Policy](https://asmr-relax.top/pages/privacy.html): no tracking, LocalStorage-only
- [Terms of Service](https://asmr-relax.top/pages/terms.html): usage terms

## Tech Stack & Principles

- Pure HTML5 / CSS3 / Vanilla JS — no frameworks, no npm, no build pipeline
- Web Audio API for all 67+ sounds (synthesised in-browser, zero audio files)
- Canvas 2D API for all 83 visualisations (rendered live, zero video files)
- LocalStorage for all user data (no backend, no accounts, no tracking)
- Service Worker (cache-first) for full offline support — installable as PWA
- WCAG AA accessibility — 6 colour themes including High Contrast
- JSON-LD structured data on all 80+ pages (Article, FAQPage, HowTo, BreadcrumbList, Organization, AudioObject, SoftwareApplication)
- Hosted on Hetzner Cloud (own metal), deployed via GitHub Actions, served by Nginx with Brotli + HSTS

## Editorial Standards

All wellness guides are reviewed by a three-person team (cognitive neuroscientist, registered yoga teacher, CBT-trained therapist). Sources are limited to peer-reviewed publications (PubMed, JAMA, Nature, Cell, NIH, Lancet) plus authoritative health agencies (CDC, WHO, NCCIH, APA, AASM). Each guide has a visible "Last reviewed" date and a Sources section. We never sell user data — there is no backend to sell from.