IntelliJ has support for Typescript. I'm not sure if this is the level of support you're looking for but it seems like it should be sufficient.

http://www.jetbrains.com/idea/webhelp/typescript-support.htm...

Whoa, thank you sir. I assumed it didn't support it because I couldn't find a Typescript plugin when I searched their repository. I didn't think it would just be built in.

Aren't you aware that support is already available since version 12.1.0?

http://www.jetbrains.com/idea/whatsnew/

http://www.jetbrains.com/idea/webhelp/typescript-support.htm...

The TypeScript tooling is completely open source (and actually written in TypeScript itself). So yeah I think we should see more support for TypeScript as it gains more traction.

I will recommend you to try WebStorm Trial by IntelliJ (http://www.jetbrains.com/webstorm/)

This is the same as IDEA, but focused on Web Development and releasing new features much-much faster.

But best support offers MIcrosoft's Visual Studio. You could try Visual Studio Web Express (http://www.microsoft.com/visualstudio/eng/products/visual-st...) if you are using Windows. It's totally free.

There is Typescript language support for Emacs and Sublime Text, so there shouldn't really be a problem there; someone just has to do it.