themifyme

Easily create metaboxes for your posts and custom post types, or for user profiles. 
Please note, this plugin is intended for developers, to see how to use this plugin you can checkout the “example-functions.php” file inside the plugin.
Supported field types
<ul>
<li>textbox: general text input</li>
<li>image: image uploader, allows user to upload images directly or use the WordPress media browser</li>
<li>video: same as “image” but only allows uploading video files</li>
<li>audio: same as “image” but only allows uploading audio files</li>
<li>dropdown: multiple choice select field</li>
<li>radio</li>
<li>checkbox</li>
<li>color: color picker</li>
<li>date: date and time picker, with options to change the formatting of the date</li>
<li>gallery_shortcode: upload and select multiple images</li>
<li>multi: allows displaying multiple fields in the same row</li>
</ul>

Themify Metabox

Metabox creation tool with advanced features.

Fabio Santos

This plugin adds a simple checkbox in the insert/edit link popup for including nofollow attribute.

Rel Nofollow Checkbox

Adds a checkbox in the insert/edit link popup for including rel="nofollow".

Themify Metabox vs Rel Nofollow Checkbox