We already discussed about Powerful WordPress Widget Visibility Feature From Jetpack that allows you to controls what places your widgets appear on. Now this tutorial is on new WordPress plugin Widget Visibility Without Jetpack which is not a Jetpack Addon means you can use it (same Jetpack visibility features) when you are not connected to Jetpack.
Installation & Usage: Install and activate Widget Visibility Without Jetpack plugin and that’s all. You can control the visibility of each and every widget from your admin area Dashboard -> Appearance -> Widgets page.