Naked-Markets

Naked-Markets is aimed to help people build and test investment strategies without losing real money on the markets. 
By assessing an investment strategy simulated historical markets, the users can see if it's reliable or not.
It provides more than 1000+ assets to trade with very accurate data, tick-accuracy and historical spread.
Naked-Markets has a very unique system to build a 100% automated trading system without coding skills, very easily.
Lot of statistics are available to assess the strength of your investment strategy.
The web version is 100% free for swing traders.