Best Free & Open Source Alternatives to MyFitnessPal

SparkyFitness is a self-hosted, family-friendly fitness and health tracking application. It empowers users to monitor nutrition, exercise, hydration, and body metrics, all in one place.

Key Features

• Nutrition Tracking: Log meals, create custom foods, and analyze trends with interactive charts.
• Exercise Logging: Record workouts, access a comprehensive exercise database, and track fitness progress over time.
• Water Intake Monitoring: Set hydration goals and log water intake using custom containers.
• Body Measurements: Record metrics like weight and waist size, and visualize progress through charts.
• Goal Setting: Establish and manage fitness and nutrition goals, tracking progress over time.
• Daily Check-Ins: Monitor daily activity and stay consistent with habit tracking.
• AI Nutrition Coach: Receive personalized nutrition advice powered by SparkyAI.

Deployment & Development

SparkyFitness is designed for self-hosting and offers a comprehensive setup guide:

• Quick Start: Clone the repository and set up the development environment with Docker.
• Documentation: Access detailed guides on installation, development setup, and usage instructions at the SparkyFitness Documentation Site.

wger (pronounced "vega") is a free, open-source workout and fitness manager that you can self-host or use via official mobile apps. Built with Python and Django, it provides a complete solution for tracking workouts, nutrition, body measurements, and progress photos without relying on proprietary subscription services.

The platform includes a built-in exercise wiki with a community-contributed database, custom workout routines with automatic weight progression rules, and nutrition management powered by Open Food Facts. It supports multiple users with basic gym management features and offers a REST API for third-party integrations.

wger is available as a web application that deploys easily with Docker, and through cross-platform mobile apps on Android, iOS, F-Droid, and Flathub. The project is actively translated by the community via Weblate and released under the AGPL-3.0 license.

NutriTrace is a self-hosted personal nutrition tracker designed for privacy and full data ownership. It runs as a single Docker container on your own hardware, offering both a Progressive Web App (PWA) for browsers and a native Android app. No accounts on external services are required, and no data leaves your network unless you explicitly opt into third-party integrations.

The app features a daily food diary with configurable meals, quick-add foods and recipes with portion scaling, and a nutrition bar with macro summaries. You can track body stats, water intake, and even intermittent fasting with customizable goal presets. A built-in AI assistant (Trace) can answer questions about your nutrition data.

NutriTrace supports importing past data from MyFitnessPal, Lose It!, Cronometer, or generic spreadsheets, making migration straightforward. The personal food database supports photos, barcodes, and custom labels, with barcode scanning via Open Food Facts.

Multi-user support is optional — it runs perfectly as a single-user app without any login. For multi-user setups, admins can invite users via email or shareable links, enforce strong password policies, and enable biometric sign-in on Android.

Stronk is a free, installable web application for tracking weightlifting progress over time. It provides a straightforward interface for logging workouts, recording sets and repetitions, and monitoring how performance changes across training sessions. The app is designed to be installed as a progressive web app and stores all workout data locally on the user's device.

The project is intentionally minimal — focused on the core task of logging lifts and reviewing historical progress without the subscription fees, upsells, or feature bloat common in commercial fitness apps. Remote backup support is under development for users who want to protect their data across devices.

Stronk is suited to lifters and fitness enthusiasts who want a simple, free, and privacy-respecting tool for tracking their training without sharing data with a third-party service.