
Quantopian
QuantConnect
Backtrader
CloudQuant
QuantRocket
Gekko Plus
Intrinio
Quantreex
Neede
Interfacer
Blush
Bestfolios
MakeSumo
ITG.digital
Illustratious
Open Peeps
QuantConnect - QuantConnect provides a free algorithm backtesting tool and financial data so engineers can design algorithmic trading strategies. We are democratizing algorithm trading technology to empower investors.
Interfacer - Collection of more than 200+ free design resources
Backtrader - Backtrader is a complete and advanced python framework that is used for backtesting and trading.
Blush - Illustrations for everyone
CloudQuant - Crowd based algorithmic trading development and backtesing for stock market trading.
Bestfolios - Portfolio website and resume collection from best designers