Microsoft today released a free set of tools and resources designed to make it easier for developers to make their website render beautifully on Internet Explorer and other leading browsers. Microsoft partnered with BrowserStack which allows developers to test their website for IE from any browser on any platform. You can now use BrowserStack via modern.IE for free upto three months this year.
Visit Modern.ie for more details.
Read more about it in the link below.
Source: Windows Team Blog