Caffeine Tracker
Log every caffeinated drink and see your total for today against the general 400 mg adult daily guideline. Everything stays in your browser — nothing is uploaded.
Today's intake
Quick add a drink
Add a custom drink
Caffeine cutoff planner
Caffeine can stay active in the body for hours. A common rule is to stop about 6 hours before bed.
Today's log
Good to know
- For most healthy adults, up to 400 mg of caffeine per day is generally considered safe by food-safety authorities — roughly 4 small brewed coffees.
- Avoid caffeine for about 6 hours before bed so it does not interfere with your sleep.
- Energy drinks often combine high caffeine with sugar — check the label, values vary a lot.
- If you are pregnant, breastfeeding, or have a heart condition, talk to a doctor about your limit.
This tool is a simple log for awareness only. It does not diagnose anything or replace medical advice.
Frequently Asked Questions (FAQ)
How do I log a drink in the caffeine tracker?
Tap a quick-add button for espresso, brewed coffee, instant coffee, black tea, green tea, cola or energy drink with typical caffeine values, or add a custom drink with your own name and milligram amount. Each entry can be deleted individually, and the whole day can be cleared with one button.
What is the 400 mg guideline shown on the page?
It is a general daily limit for most healthy adults, recognized by food-safety authorities, and equals roughly four small brewed coffees. This tool is a simple log for awareness only; it does not diagnose anything or replace medical advice.
What do the progress zones mean?
Under 200 mg shows a green bar, 200 to 400 mg shows a moderate warning to watch further drinks, and over 400 mg shows a red warning suggesting you switch to decaf or water. The page also shows exactly how many milligrams you have left for the day.
What is the caffeine cutoff planner?
Enter your bedtime and the planner shows a cutoff time six hours earlier, because caffeine can stay active in the body for hours and a common rule is to stop about six hours before bed.
Is my caffeine log sent anywhere?
No. The log is stored only in your browser for the current day and nothing is uploaded.