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Track Your Daily Water Intake with Smart Reminders

Stay hydrated effortlessly. Set personalized goals, get timely reminders, and visualize your progress - all in your browser with complete privacy.

Why Hydration Matters

Water makes up about 60% of the human body. Every cell, tissue, and organ depends on adequate hydration to function properly. Yet studies show that up to 75% of adults may be chronically dehydrated without even realizing it.

Dehydration as mild as 1-2% of body weight can impair cognitive performance, reduce concentration, cause headaches, and decrease physical endurance. Over time, chronic low water intake is linked to kidney stones, urinary tract infections, and even cardiovascular issues.

The solution is simple: drink water consistently throughout the day. But in our busy lives, it is easy to forget. That is where Hydration Reminder comes in - a lightweight, privacy-first tool that helps you build and maintain a healthy drinking habit.

Everything You Need to Stay Hydrated

Smart Water Tracking

Log your water intake with quick-add buttons or custom amounts. Track your progress in real-time with a beautiful visual progress bar.

Customizable Reminders

Set personalized reminder intervals from 15 minutes to 2 hours. Never forget to drink water again with browser notifications and sound alerts.

Daily Progress

See your hydration percentage, remaining intake, and motivational messages. Reach your daily goal and celebrate your achievement.

Intake Calculator

Calculate your ideal daily water intake based on your weight, activity level, and climate conditions using scientifically backed formulas.

100% Private

All data stays in your browser. No accounts, no servers, no tracking. Your hydration data is yours alone.

Mobile-First Design

Designed for phones first, works beautifully on any screen size. Fast loading, smooth animations, and intuitive touch interactions.

How It Works

Set Your Goal

Choose a daily water intake goal based on your weight, activity level, or use our calculator for a personalized recommendation.

Configure Reminders

Pick a reminder interval that suits your routine - every 30, 45, or 60 minutes. Enable browser notifications and sound alerts.

Log Your Intake

When reminded, log your water intake using quick-add buttons (150 ml, 200 ml, 250 ml, 500 ml) or enter a custom amount.

Track Progress

Watch your progress bar fill up throughout the day. Hit your daily goal and build a consistent hydration habit.

The Science of Hydration

The human body loses water continuously through breathing, sweating, and digestion. The National Academies of Sciences recommends a total daily water intake of about 3.7 liters for men and 2.7 liters for women, including water from food and beverages.

Research published in the Journal of Biological Chemistry established that water comprises approximately 73% of the brain and heart, 83% of the lungs, 79% of muscles and kidneys, and 64% of the skin. This underscores why even slight dehydration can cascade into multiple symptoms.

A 2018 study in the journal Nutrients found that participants who increased their daily water intake reported significant improvements in energy, skin complexion, and digestive regularity within just two weeks. Another study in Frontiers in Human Neuroscience demonstrated that drinking water improved cognitive test performance by up to 14%.

For athletes, the American College of Sports Medicine recommends drinking 400-600 ml of water 2-3 hours before exercise, 150-350 ml every 15-20 minutes during activity, and replacing 150% of weight lost through sweat after exercise. Electrolyte replenishment becomes critical during sessions exceeding 60 minutes.

Your individual needs depend on body weight, activity level, ambient temperature, humidity, altitude, and even certain medications. Our water intake calculator takes these factors into account to give you a personalized recommendation.

Explore More About Hydration

How Much Water Should I Drink?

Personalized recommendations based on weight, age, and lifestyle.

Signs of Dehydration

Recognize mild to severe symptoms before they become serious.

Frequently Asked Questions

The general recommendation is 2,000-2,700 ml for women and 2,500-3,700 ml for men. However, your ideal intake depends on factors like body weight, physical activity, climate, and health conditions. Use our water intake calculator for a personalized recommendation.

Set your preferred reminder interval and the app will send you browser notifications with optional sound alerts. When a reminder triggers, simply log how much water you drank. The countdown timer shows exactly when your next reminder will arrive.

Once loaded, all tracking and timer functionality works without an internet connection.

Yes. You can set any daily goal in milliliters. The default is 2,500 ml, but you can adjust it based on your personal needs, body weight, or activity level.

The app automatically resets your daily progress at midnight so you start fresh each day. You can also manually reset your progress at any time using the reset button in settings.

Proper hydration supports cognitive function, energy levels, skin health, digestion, kidney function, and physical performance. Even mild dehydration can impair concentration, mood, and memory.

Our calculator uses the widely accepted formula of 30-35 ml per kg of body weight, adjusted for activity level and climate. While this provides a good baseline, individual needs vary.