Investbrain

Investbrain is an open-source web app for tracking investment portfolios across brokerages, monitoring performance, and analyzing holdings over time. It supports multiple market data providers and can optionally add an LLM-powered chat assistant grounded on your portfolio data.

Key Features

• Portfolio, holdings, and transaction tracking with performance monitoring
• Extensible market data provider interface with fallback across providers
• Historic charts and daily performance snapshots for trend analysis
• Smart search across portfolios and holdings
• Import/export for data portability and backups
• One-click backup and recovery workflow
• Collaboration features with configurable portfolio access
• Internationalization, accessibility, dark mode, and mobile-responsive UI
• Optional AI chat assistant via OpenAI-compatible APIs (including self-hosted endpoints)

Use Cases

• Consolidate portfolios from multiple brokerages into a single view
• Track portfolio performance over time with charts and daily change snapshots
• Explore holdings and strategies using search and AI-assisted Q&A

Limitations and Considerations

• AI chat requires configuring an OpenAI-compatible API endpoint and model, and outputs may be inaccurate
• Market data quality, coverage, and rate limits depend on the selected provider and API keys

Investbrain is a strong choice for privacy-conscious investors who want a self-managed portfolio tracker with flexible market data sources and optional AI-assisted analysis. Its provider interface and import/export tools make it practical for long-term tracking and data ownership.