TA-Lib : Technical Analysis Library

Multi-Platform Tools for Market Analysis ...

TA-Lib is widely used by trading software developers requiring to perform technical analysis of financial market data.

Free Open-Source Library

TA-Lib is available under a BSD License allowing it to be integrated in your own open-source or commercial application. (more info)

Commercial Application

TA-Lib is also available as an easy to install Excel Add-Ins. Try it for free!