Alternate Nostril Breathing — Free Online Tool
Nadi Shodhana — pranayama for nervous-system balance
Nadi Shodhana alternate-nostril breathing timer with visual cues for left and right sides. Yoga pranayama, evidence-based. Free, browser-only.
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Alternate Nostril Breathing (Nadi Shodhana) Timer
Nadi Shodhana — Sanskrit for "channel purification" — is a foundational yogic pranayama practice. You alternate breath between the left and right nostrils, using your right hand to close one nostril at a time (Vishnu mudra: thumb closes right, ring finger closes left). Traditional teaching links this to balancing the autonomic nervous system; modern research supports moderate effects on HRV, stress markers, and cognitive performance.
How the visualization works
The amber wisps switch sides each phase. Phase 1: left wisp flows UP (inhale left). Phase 2: right wisp flows DOWN (exhale right). Phase 3: right wisp flows UP (inhale right). Phase 4: left wisp flows DOWN (exhale left). The dot travels around the ellipse — top → right → bottom → left → top — one quadrant per phase. The mouth stays closed: all breath is through the nose.
How to use this tool
- 1
Hand position
Use right hand. Thumb closes the right nostril, ring finger closes the left. Index and middle fingers rest on the forehead.
- 2
Inhale LEFT (4s)
Close right nostril with thumb. Inhale slowly through the LEFT nostril. The left amber wisp flows UP.
- 3
Exhale RIGHT (4s)
Close left nostril with ring finger, release thumb. Exhale through the RIGHT nostril. The right amber wisp flows DOWN.
- 4
Inhale RIGHT (4s)
Keep left nostril closed. Inhale through the RIGHT nostril. The right amber wisp flows UP.
- 5
Exhale LEFT (4s)
Close right nostril, release left. Exhale through the LEFT nostril. The left amber wisp flows DOWN. That completes one full cycle.
Frequently Asked Questions
What is Nadi Shodhana?
Is it research-backed?
Do I need the hand position?
How long should I practice?
Does this tool store my data?
Key Takeaways
- Alternate Nostril Breathing is a free, browser-based calculator tool — nadi shodhana — pranayama for nervous-system balance.
- No signup, no downloads, no file uploads. Tools run in your browser; the few that need an outside service say so on the page.
- Works on desktop, tablet, and mobile. Install as a PWA for offline access.
How to Use Alternate Nostril Breathing
- Open the tool: Launch Alternate Nostril Breathing on Toololis — no account or download needed.
- Enter your data: Paste text, enter values, or select a file directly in your browser.
- Get instant results: Everything is processed locally — results appear immediately.
- Copy or download: Save your output or share it. Bookmark for quick access next time.
Alternate Nostril Breathing — Quick Facts
- Price
- Free — no limits, no watermarks, no paywalls
- Privacy
- Processed in your browser. Tools that need an outside service say so on the page. Page views are counted (Google Analytics).
- Platform
- Any modern browser on desktop, tablet, or mobile
- Category
- Calculator Tools on Toololis
- Offline
- Works offline after first visit (Progressive Web App)
| Feature | Details |
|---|---|
| Tool | Alternate Nostril Breathing |
| Category | Calculator |
| Signup Required | No |
| File Upload | None — processed in browser |
| Mobile Support | Fully responsive |
| Cost | Free forever |
Why Use Alternate Nostril Breathing?
You should try Alternate Nostril Breathing for a quick, private way to nadi shodhana — pranayama for nervous-system balance. Processing happens in your browser and files are never uploaded; the few tools that need an outside service say so on the page.
On the other hand, dedicated APIs or desktop tools suit batch processing better. They also handle server-side automation. For everyday tasks, browser tools offer the best speed, privacy, and convenience.