Perfice

Perfice is an open-source, local-first self-tracking platform that lets you track arbitrary metrics (sleep, mood, habits, etc.), set goals, and surface correlations between metrics. The client is a web app (Svelte + TypeScript) with an optional backend for account sync and integrations.

Key Features

• Trackables: define and record any metric or event with flexible value types
• Automatic correlations: compute and surface relationships between metrics to reveal patterns
• Goals: create and monitor goals across multiple trackables
• Local-first storage: primary data storage and calculations use browser storage (IndexedDB) for privacy and offline-first use
• Exportability: export and import data in CSV and JSON formats
• Mobile support: packaged for Android via a native WebView wrapper (Capacitor) for on-device use
• Optional backend & sync: user accounts, multi-device synchronization and integrations are supported via an optional server
• Customizable UI and workflows, built with modern web stack for easy theming and extension

Use Cases

• Personal habit and behavior tracking to discover what affects mood, sleep, or productivity
• Wellness monitoring and correlation analysis for sleep, exercise, and mood patterns
• Quantifying progress toward goals and visualizing metric trends over time

Limitations and Considerations

• Multi-device sync and account features require deploying and configuring the optional backend; the backend is not required for single-device local use
• As a local-first app using browser storage, very large datasets may be constrained by the client environment and browser IndexedDB limits
• Mobile distribution relies on building the native wrapper; additional steps and tooling are needed to produce store-ready mobile packages

Perfice is suited for users who want a privacy-conscious, extensible self-tracking tool with built-in insights and goal support. It balances a local-first experience with optional server-backed sync for multi-device workflows.