Avidus Charting, tech. analysis and trading strategy platform./td>

CapitalReSources Manage and display market data (windows or web), use and define technical indicators, optimize trade systems

FFTS Finicky Financial Trading System. Trading and risk management system.

FreeMarket Was planned to be an analysis platform mainly build around a server architecture.

Gstockcalc Calculates losses and earnings and can display a 30 day chart for each stock.

gChartMan Charting software

GreatCharts Draw charts: Candlestick, OHLC + functions like MAC, Stochastic, RSI, etc.

GStalker Technical analysis charting package for GNOME

LibStocks C library which can be used to fetch stocks quotes.

Nevada An investment analysis and risk analysis system, especially geared towards hedge fund operators and fund-of-funds managers.

Octopus C++ Framework for evaluating position sizing, placement of stop-loss limits and usage of trailing profit stops. See also MaWaTT Trading Toolkit

ProfitPy Python trading app. Works with Interactive Broker.

Risk Quantify Support trading, risk management, accounting, and settling of FX, Interest Rate and Equity derivatives

ShareWatch Written in Python, keep you up to date with share and derivative prices.

vtxboerse Capture the rates of stocks from teletext in a MySQL database.