QChartist

QChartist is a free charting software for making technical analysis on any data like Forex, Stocks. It is an open source technical analysis software. It provides a complete set of tools to perform technical analysis on charts and data. It helps to make forecasts mainly for markets but can also be used for weather or any quantifiable data. The program is flexible and its functionalities can be easily extended. You can draw geometrical shapes on your charts or plot programmable indicators from your data. It is also possible to filter or merge data. QChartist has useful features that you can only find in expensive professional softwares and it's free. Website : http://www.qchartist.net