I've been using ModulusFE's M4 platform for a couple years (Trading Application with Complete C# and C++ Source Code by Modulus - YouTube). I use this because the source code is open and commercially supported (you get 24/7 dev support). They have a new HTML5 web based trading platform that is licensed with source code although I have not used this web version and so I cannot comment on it - but Ican say the desktop version has been more than sufficient for my needs. ModulusFE also bought out OpenForexPlatform (and offered a commercial license to all the open source contributors); so now you can license OpenForexPlatform under a commercial license without the GPL license. I have tried the OpenForexPlatform version and didn't like it as much. I also use NinjaTrader for some of my trading. I tried TradeLink and did not like that platform at all and did not like the community. I would avoid TradeLink at all costs. I have been programming since the 80's and that thing was just thrown together in an incoherent way just like OpenForexPlatform. I'm sticking with M4 and some other software I have developed for myself. Sorry for the long winded reply but I recommend checking out ModulusFE's HTML5 platform. Again I have not used it but I have used their other products.