Best Open Source Finance & Investing Tools in 2026
Open-source tools for financial analysis, stock market tracking, portfolio management, and investment research.
The most popular pick this year is OpenBB with 67,460 GitHub stars, but all 5 options below are worth considering depending on your needs.
5 open source finance & investing tools — ranked by GitHub stars. Browse all
OpenBB
Open-source financial data platform for analysts, quants, and AI agents — a free alternative to Bloomberg Terminal.
Bloomberg Terminal
Freqtrade
Free, open source crypto trading bot written in Python with strategy backtesting, machine learning, and multi-exchange support.
3Commas
Hummingbot
Open-source framework for building and deploying high-frequency crypto trading bots with market making and arbitrage strategies.
3Commas
EasyInvoicePDF
Free browser-based invoice generator with live PDF preview, no sign-up required, and support for 120+ currencies.
FreshBooks
stonks
Terminal-based stock market visualizer that displays real-time stock graphs directly in your terminal.
TradingViewHow we rank these tools
Tools are ranked by GitHub stars as a proxy for community adoption and trust. Stars reflect how many developers found a project valuable enough to bookmark — a reasonable signal for quality in the open source world. We only list tools that are actively maintained and open source.
Looking for tools you can run yourself? Browse self-hosted finance & investing tools →