A native .NET implementation of Dave Ragget's Tidy.
I downloaded this and tried unsuccessfully to get it to work to clean up XML. There is NO documentation for this and there is NO inline doc to explain any of options. I guess I could go to the trouble of looking at the Tidy docs and trying to figure out the settings from that, but since this project trails far behind the original tidy (and is maybe totally stagnant?) I don't see the point in investing much time on this. Also on the support forum even though there are only a few questions, most of them have no response, which is a bad sign for an open source project--it means that the original developer has little focus on the project and the community has not stepped up to fill that gap.