Studiofreya

SF Generate Tags is a plugin that helps generate tags for posts. It scans the names of all attached images and/or the post content (text) and places the resulting tags in the built-in WordPress “Tags Widget” in the post editor. 
The plugin analyzes collected words and picks out the most suitable for tags. 
All tags are then sorted in descending order and posted into the Tags widget. 
If you don’t like a tag which has been discovered and want to delete them, you can just click the X button and save post without them. 
The plugin doesn’t mess with your existing tags. It preserves all your existing tags for the post. All the actions can be easily undone.
This plugin should work with any language. It’s filtering algorithm is designed for English. All other languages will have all the words be added as tags.
<a href="https://studiofreya.com/wordpress/sf-generate-tags/" rel="nofollow ugc">SF Generate Tags website</a>
<h4>Features:</h4>
<ul>
<li>Easy to use from the admin panel for post edit </li>
<li>Choose to generate tags from attached images or post text or both</li>
<li>Exclude words that you don’t want to be tags</li>
<li>Easy to remove all undesirable tags</li>
<li>All actions can be undone</li>
<li>Existing tags are preserved</li>
<li>Add other tags later</li>
<li>Regenerate tags after updating the post (or not)</li>
<li>Limit number of generated tags</li>
</ul>

SF Generate Tags

Generate tags for posts from images or/and post text.

marchenko.alexandr

Generate wordpress pages, posts, categories, comments for development enviroment in few clicks.
You can generate entire site content in one click, or configure each entity and generate it separately.
You will be able to generate: categories, posts, pages.
<a href="http://www.youtube.com/watch?v=6pMOfc28Pc0&feature=player_embedded" rel="nofollow ugc">Video on YouTube showing how it works</a>
Featured images generator added in 1.3, but be patient if you generate many posts it takes some time to generate featured images, wordpress also creates thumbnails foreach image. To exclude timeout error you may change execution limit for php scripts in your php.ini.
Post custom meta fields generator added in 1.4, now you can generate anything you want.
Notice: when you deleting content fron GWE page, all content will be deleted rather than fake. Please add real content just after you finish your work and deleted all fake content. Thanks @soragrey for feedback.

Generate WordPress Entities

Generate wordpress pages, posts, categories, comments for development enviroment in few clicks.

SF Generate Tags vs Generate WordPress Entities