TradingView is the best online charting in the market today. It supports Bitcoin, Futures, Currencies (Forex), US Stocks, and various other Stock Markets around the world. It gives the trader the ability to perform technical analysis in a regular browser or computer. Anyone can sign up for TradingView for FREE!. The Free version has delayed data.
To get real time data feed, you have to pay the exchange fee. Here are the different subscription available outside the FREE Version.