Set Your Goals
Enter your age, weight, and goal. Our AI calculates your ideal daily calorie and macro targets — no guesswork needed.
A simple, one-use app.
Track Calories
Effortlessly.
No bloat. No complex menus. Just open, log, and stay in control. FitBites is the free, open-source AI calorie tracker that works like a notes app.
Today1450 / 2000 cal
2 roti + dal320
Masala dosa280
Chicken biryani450
Green tea2
1 banana105
Three Steps to
Perfect Rhythm
FitBites removes the friction of daily tracking. Designed for speed, built for simplicity.
Log with AI
Type naturally: "1 roti" or "100g rice." Our AI instantly calculates calories and macros without manual searching.
Track Progress
See your progress with clean charts. A breakdown of protein, carbs, and fats updated in real time — at a glance.
Effortless Analytics.
This WeekAvg 1,650 cal
Protein
Carbs
Fat
100% Free.
Fully Open Source.
No premium tiers. No ads. No data selling. FitBites is built by developers who believe health tools should be free for everyone. Inspect the code, contribute, or fork it.
// How simple is FitBites?
const entry = await estimateCalories("2 roti + dal");
// → { calories: 320, protein: 12, carbs: 45, fat: 8 }
// That's it. One line.
// No barcode scanning.
// No database lookup.
// Just type and go.Log in seconds.
The simplest AI calorie tracker ever made. Free, open source, and ready to use.
Frequently Asked
Is FitBites really free?
Yes! FitBites is 100% free with no subscriptions, no ads, and no hidden charges. It is also fully open source on GitHub.
How does FitBites analyze food?
FitBites uses AI to instantly analyze your food descriptions. Just type what you ate naturally — like "1 roti" or "100g rice" — and the AI calculates calories, protein, carbs, and fat.
Do I need to create an account?
Yes, you sign up with your email so your data is saved securely in the cloud and synced across devices. No social login or complex onboarding.
How is this different from MyFitnessPal?
FitBites is simpler, free, and open source. No barcode scanning, no premium tiers, no clutter. You type what you ate and the AI handles the rest — like a notes app for food.
Can I use it on the web?
Yes! FitBites works as both an Android app and a web app at app.fitbites.app. Your data syncs across all devices.