Changeling Labs builds free, open-source, local-first tools that turn daily data into better habits — for fitness, focus, and everyday life. No accounts, no subscriptions, no tracking. Your data never leaves your device.
Progressive Web App · Strength
Full-featured workout companion for tracking strength sets, time-based intervals, rounds, and comprehensive workout metrics.
Progressive Web App · Health Engine
Engineered for Healthspan — a local-first, open-source health engine for lifelong capability, metabolic tracking and recovery. The next evolution of Iron Log.
Progressive Web App · Reading Plan
Read-through-the-Bible progress tracker with per-book chapter grids, streaks, a finish-by-date plan, and offline support.
Service & Scheduling Platform
Mobile-friendly web application designed for booking vehicle wash services, viewing packages, and real-time status tracking.
Productivity Dashboard
Clean and minimalist scheduling tool engineered for fast event entry, agenda overviews, and personalized schedule management.
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