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Intermittent Fasting Timer — Gratis online tool

Track 16:8, 18:6, OMAD, 5:2 — alle protocollen

Volg intermittent fasting (16:8, 18:6, 20:4, OMAD, 5:2). Aftelling tot je volgende eetvenster. Live, nauwkeurig, direct in je browser.

Ready to start
0:00:00
Pick a protocol and start
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Fasting window
16h
Eating window
8h
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Meer weten

Free intermittent fasting timer — 5 protocols

Toololis Fasting Timer tracks all major intermittent fasting protocols — 14:10, 16:8, 18:6, 20:4, OMAD. Auto-saves your progress. Works offline. Nee signup, no ads interrupting your fast.

How to use this tool

  1. 1

    Pick a protocol

    16:8 (most popular), 18:6, 20:4, OMAD (One Meal A Day = 23:1), or 5:2 (full days).

  2. 2

    Start your fast

    Tap the Start button right after your last meal. Timer begins counting.

  3. 3

    Watch the countdown

    See hours remaining, progress bar, and reminder when eating window opens.

Protocol guide

  • 14:10 — Easiest entry point. 14h fasting, 10h eating.
  • 16:8 — Most popular. Skip breakfast, eat 12pm-8pm.
  • 18:6 — Deeper autophagy. Eat 2pm-8pm.
  • 20:4 Warrior — Advanced. Eat 4pm-8pm.
  • OMAD 23:1 — Experienced fasters only. One big meal per day.

Frequently Asked Questions

What is intermittent fasting?
Eating within a restricted time window each day (e.g., 8 hours). Research suggests benefits for weight management, insulin sensitivity, and cellular autophagy. Consult a doctor before starting if you have health conditions.
Which protocol is best?
16:8 is the most popular and easiest to start — 16h fasting, 8h eating (e.g., 12pm-8pm). 18:6 or 20:4 for faster results. OMAD for experienced fasters. 5:2 is 5 normal days + 2 very-low-calorie days (~500 kcal).
Can I drink during fasting?
Water, black coffee, and plain tea are fine — they're zero-calorie. Milk, sugar, sweeteners may break fast depending on how strict. Bone broth is debated.
Is my fasting data saved?
We save your current fast state in browser localStorage (survives reloads). Neething is sent to any server. Clear browser data = timer resets.
Does this work offline?
Yes, once loaded. Uses your device's clock.

Belangrijkste punten

  • Intermittent Fasting Timer is a free, browser-based calculator tool — track 16:8, 18:6, omad, 5:2 — all protocols.
  • Nee signup, no downloads, no file uploads — your data stays on your device.
  • Works on desktop, tablet, and mobile. Install as a PWA for offline access.

How to Use Intermittent Fasting Timer

  1. Open the tool: Launch Intermittent Fasting Timer on Toololis — no account or download needed.
  2. Enter your data: Paste text, enter values, or select a file directly in your browser.
  3. Get instant results: Everything is processed locally — results appear immediately.
  4. Copy or download: Save your output or share it. Bookmark for quick access next time.

Intermittent Fasting Timer — Quick Facts

Prijs
Gratis — geen limieten, geen watermerk, geen paywall
Privacy
100% in de browser — geen data verlaat je apparaat
Platform
Elke moderne browser — desktop, tablet of mobiel
Categorie
Rekenmachine Tools on Toololis
Offline
Works offline after first visit (Progressive Web App)
FunctieDetails
ToolIntermittent Fasting Timer
CategorieRekenmachine
Aanmelden vereistNee
Bestand uploadenGeen — verwerkt in browser
Mobiel ondersteundVolledig responsive
KostenVoor altijd gratis

Why Use Intermittent Fasting Timer?

You should try Intermittent Fasting Timer for a quick, private way to track 16:8, 18:6, omad, 5:2 — all protocols. All processing happens in your browser. Your files and data never leave your device. According to web.dev, client-side processing is the gold standard for privacy.

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.

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100% Privacy. Deze tool draait volledig in je browser. Je gegevens worden nooit naar een server geüpload.