Google Sheets Python API
A distributed transaction framework that supports multiple languages
The free and Open Source productivity suite
Budget management
Converts simple lists of lots and sales into a TXF file
Mirror of the TA-Lib project using a Git repository
Convert HTML to PDF using Webkit (QtWebKit)
A portfolio-optimizer using Markowitz(1952) mean-variance model
Software converts to/from Euros to 31 different currencies
An other free stock market software in C++/Python
Full featured financial fixed-income, credit, and bond analytics/risk
A C++ and Python library for finance, statistics and linear algebra.
A tool to convert an exported text file from one format to another.