NinjaTrader Market Replay
Trading is just like any other skill. If you want to be good at it, you have to practice. The Market Replay feature allows you to do just that. You can replay major currency pair data online after hours and even on the weekends.
To take advantage of this feature you simply have to download the replay data and specify the date and timeframe. Then you can practice scalping, watch how your strategies would have performed, and test the hypothetical performance of your entry and exit points. Unlike a typical demo account, the Market Replay feature has the added benefit of being able to fast forward through data, allowing you to more effectively analyse your strategies.