A precision macro tracker built as a PWA: fast, private, and yours.
The Exercise card no longer says syncing with Garmin and Apple Health is coming soon. Macrolog runs in your browser, and Apple Health and Health Connect only share data with apps installed from an app store, so it isn't planned.
Logging exercise works as before: tap + Add on the Exercise card and enter the activity and the calories it burned.
On a laptop or desktop the navigation moves to a sidebar and Today splits into two columns, so your rings, meals and food log sit next to water, exercise, notes and weight.
The Trends and Macro History charts get more room, and sheets open as centred dialogs. Tablets get the phone layout, centred on the screen. Phones are unchanged.
New installs no longer start with a set of pre-filled custom foods, and any food you delete from your list now stays deleted.
If your list already has these foods, they stay where they are. Delete any you don't use and they won't come back.
The dates along the bottom of the Trends and Macro History charts were cut off. They now show in full, and the kg and kcal labels no longer overlap the axis numbers.
New users now get the targets wizard once, after the tour, after skipping it or the next time the app opens, instead of starting on the default 2,500 kcal. Also: the History calendar's "Jump to Today" button is no longer hidden behind the bottom navigation, the Additional Nutrients section now collapses when tapped, the first-run tour no longer points at hidden parts of the screen, and on tablets the Ko-fi card no longer sits behind the navigation.
Built for daily use. No subscription, no account required. Your data stays on your device.
Log meals and track kcal, protein, carbs, fat, fibre, and sugar against your daily targets.
Scan any food barcode to pull up nutrition data instantly — no manual entry needed.
Point the camera at any nutrition label to read off the values automatically.
Build and save multi-ingredient recipes; log them as a single entry.
Save your own foods with custom macros for quick relogging.
Weekly and monthly charts for all macros, body weight, and calorie balance over time.
Light, dark, and auto modes. New visual themes launching via the beta channel.
Installs directly from the browser on any device — no app store required, works offline.
All data stays on your device. No account required, no tracking.
Self-hosted sync server and AI-powered meal analysis.
Requires API key or self-hosted server
The ring at the heart of the app. Each segment fills as you log meals throughout the day, giving you an immediate read on where you stand.
Example values: 165g protein, 230g carbs, 72g fat (2,211 kcal). Targets set by you in Settings.
Five steps from install to your first logged meal.
Open macroslog.co.uk in Safari or Chrome. Tap "Add to Home Screen" (iOS) or "Install app" (Android/Chrome) to install it as a native-feeling app, no app store required.
Enter your daily calorie goal, protein, carbohydrate, fat, and sugar limits. Macrolog stores them locally on your device.
Type a food item and its macros, search your saved foods or recipes, or scan a barcode — the entry is added to your daily log instantly.
The macro ring updates as you log. Tap any segment to see the breakdown. A warning indicator appears if you approach your sugar limit.
Open the Trends tab to see your last 7 or 30 days of macros, calories, and body weight charted over time.
Macrolog is free to use. Open it now and log your first meal in under a minute.
Trying new features early? Use the beta build instead.
Run your own lightweight Flask sync server to keep every entry on infrastructure you control, and plug in your own AI provider (Claude, Gemini, or OpenAI) for meal descriptions and summaries — your API key stays on-device. Both are optional and off by default.
Full setup instructions and the sync server source live in the repo: github.com/Oliver-Johnson/macro-tracker.