Black and White Converter
Black and White Converter is a Paint.NET plugin that, as the name implies, enables users to convert pictures into black and white form. Its biggest advantage is that it not only applies a preset filter, but it also comes bundled with a few handy tweaking options to get the picture just right.
In order to install this plugin, all you have to do is move the DLL file to the "Effects" folder of the Paint.NET installation directory. It becomes accessible in the "Photo" submenu of the "Effect" menu in Paint.NET afterward.
Easily adjust color settings
As far as tweaking options are concerned, you can adjust the white and black levels, along with the tone (dark to bright), contrast, and RGB channel. What's more, you can pick the hue and saturation only, while excluding the rest of the color attributes.
Black and White Converter did not cause Paint.NET to hang, crash or pop up error dialogs throughout our evaluation. We have not come across any kind of issues. All in all, it provides Paint.NET users with an easy-to-use color converter to black and white, accompanied by handy tweaking settings.