The folks at github use this to provide their code editor Atom as an app. It has an documented api and a help channel on the official atom forums.
Intel is behind this (?). I've been told it's very rough around the edges.
Brackets Shell, the sandbox of Adobes code editor (and base of Adobe Edge)
Note: The brackets-shell is only maintained for use by the Brackets project. Although some people have definitely had success using it as an app shell for other projects, we don't provide any official support for that and we haven't done a ton of work to make the app shell easily reusable. Many people will likely find it easier to use a project like node-webkit, which is more generic by design.
says the readme, but there are quite a lot of folks out there who did it nevertheless.
Adobe AIR, as another answers suggested.
The Adobe AIR runtime enables developers to package the same code into native apps for Windows and Mac OS desktops as well as iPhone, iPad, Kindle Fire, Nook Tablet, and other Android devices, reaching the mobile app stores for over 500 million devices.
Sencha is a company which sells tools for app developers, including html5 app development and distribution.
XULRunner from Mozilla may do the trick for you but adds some overhead.
Bringing web applications to your Desktop
Prism is an application that lets users split web applications out of their browser and run them directly on their desktop.
thanks for that very useful hint! unfortunately I hadn't the oppurtinity to test out any of the examples listed above yet. I merely collected them via research.
You can make your application run outsize the security sandbox. I had that problem with KendoUI templating system also, and was able to overcome it.Either way I switched from Air to Titanium Desktop, but am currently looking for alternatives since the Windows webkit implementation of TD has serious problems with form elements (inputs / dropdowns).
You can consider Sentenza Desktop to package HTML5/CSS3/JS web application into Mac OS X application (.app). An API library is also available. It dosen't require any frameworks (like Adobe Air or TideSDK). Mac App Store deployment supported.