Widget Logic lets you control on which pages widgets appear using WP's conditional tags.

This plugin enables you to set conditional menus per posts, pages, categories, archive pages, etc.

All in one widgets and sidebars management in WordPress. Allows you to hide or display widgets on specified pages and restrict access for users.

Widget Manager lets you control on which pages widgets appear via nice and easy interface. Show or hide widgets. Display relevant content on your page …

Widget Logic Visual Version lets you control on which pages widgets appear using WP's conditional tags without having to know how conditional tag …

A shortcode to display content based on context.

Set the display condition for each widget. Widgets display condition setting can be easily, and very easy-to-use plugin.

Use conditional tags as shortcodes.

Script Logic lets you control on which pages scripts and style sheets load using WP's conditional tags.

Deprecated Plugin.

A simple API to do the shortcodes on certain conditions.