Milan Dinić

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This plugin enables you to upload images for nav menu items on a menu edit screen. By default, those images will be displayed instead of text for respective menu items. Note that after upload, you should set an image as ‘featured’ to be able to display it.
You can also set images that will be displayed only when you hover menu item, or when menu item is of currently displayed page. <a href="http://blog.milandinic.com/wordpress/plugins/nav-menu-images/#how-to-use" rel="nofollow ugc">Read detailed instructions about using plugin</a>.
Developers can use many available filters to make their own way of displaying images, or even create a child class on top of base one. See source code for more ideas.
Although this plugin displays uploaded images out of the box, it will probably not give best possible look, so it’s recommended to create custom CSS styles for affected elements.
Nav Menu Images code is partly based on a code from now defunct plugin Custom Menu Images by <a href="http://huellaspyp.com/" rel="nofollow ugc">Anabelle Handdoek 
</a>/<a href="http://8manos.com/" rel="nofollow ugc">∞manos s.a.s</a> and a code from plugin <a href="https://wordpress.org/extend/plugins/metronet-profile-picture/" rel="ugc">Metronet Profile Picture</a> by <a href="http://www.ronalfy.com/" rel="nofollow ugc">Ronald Huereca</a>/<a href="http://www.metronet.no/" rel="nofollow ugc">Metronet Norge AS</a>.

Nav Menu Images

Great and light weight plugin, without affecting core functionality of WordPress.



Code quality

Does what it's supposed to.
Would love the possibility to choose wether or not to replace all link content - would be nice if the link text would still be shown + adding a custom class to image.

Does what it promise

Works well.

FuzzGuard

This plugin allows you to display menu items based on if a user is logged in, logged out or based on the role you have given the user.
This plugin allows fine-grained permissions to be added to each individual menu item to display or not display the item based on the 
 users logged in/logged out status or the role assigned to the user. This solves the problem of having to modify theme functions.php files to add in menu restrictions. The changes in functions.php is often overwritten by a theme update. This plugin removes that worry, as you can update the theme, independent of the plugin.
<h4>Please Note</h4>
This plugin uses a modified version of the Nav Menu Walker class. This means any other plugins that utilize their own custom Nav Menu Walker class, can and will conflict with this plugin. WordPress developers have support for proper custom hooks in this area of the Admin Menu slated for v4.8 release. Please see FAQ item “I cannot see the options for Privilege Menu under menu items in the Admin Panel?” for more information.

Privilege Menu

This plugin allows you to display menu items based on if a user is logged in, logged out or based on the role you have given the user.

Nav Menu Images vs Privilege Menu