Algoriz!

Quantreex is a web based trading platform that let you create automated trading strategies in less than a minute. You can backtest, optimize and execute orders with multiple brokers. No coding is required.

Your trading strategies are your proprietary way to trade. You have extraordinary ideas that can be developed into a profitable trading strategy.

Quantopian is a platform for development and research surrounding trading algorithms. Do your development on an IPython environment using company and stock data. Write algorithms in-browser and test them on real data. Compete with others for the chance to win $5k.

quantra is a public API for quantitative finance made with Quantlib. The API is well documented and includes accessible details for use with Google Sheets.