IndieTJ — Independent Trader Journal

A private, local-first stock trading journal. Your data never leaves your browser. No cloud, no tracking, no accounts.

IndieTJ (Independent Trader Journal) is a privacy-first offline trading journal and portfolio tracker designed for active traders and long-term investors. Track stock positions, transaction history, realized and unrealized P/L, effective cost basis, and capital recovery — all directly inside your browser with zero cloud sync, zero accounts, and zero tracking. Unlike traditional SaaS portfolio trackers, IndieTJ stores everything locally on your own device using browser local storage. Your data never leaves your computer. Key features: • Offline-first architecture • No registration or login required • No cloud storage or analytics • Import/export portfolio backups as JSON • Advanced capital recovery and effective cost tracking • Average cost calculator for scaling in/out of positions • Realized and unrealized P/L dashboard • Multi-year portfolio management • Finnhub live market price integration • Lightweight and fast Vanilla JavaScript architecture Built for traders who value privacy, speed, simplicity, and full ownership of their trading data.