This plugin will scan your thumbnail-less posts and look for a suitable image to use as a thumbnail. 
It will look for images linked in the post content and will download and add them to the local library. 
Post scanning is performed only when <code>the_post_thumbnail</code> or <code>get_the_post_thumbnail</code> are called for 
that particular post.
So you designed your new thumbnail-based template, but you have tons of thumbnail-less posts and 
don’t want to spend too much time on scraping your old posts for a thumbnail picture. Maybe you 
think you will probably forget to set a thumbnail for your new posts. Maybe both, as was my case :).
When a thumbnail for a post is queried and nothing is found this plugin will scrape the post for 
an <code><img></code> tag and its <code>href</code> property. Once a suitabile image is found (based on the configured 
settings), it will be downloaded ad set as the post thumbnail. If no suitable image is found, 
a default one will be used.
This plugin is still in early development state. It just covers my needs (see the “To do” section 
for more details). It has been tested only with wordpress 3.0.1, but should work also with 2.9, 
since I used similar code with 2.9 (even if it was included in my template’s <code>functions.php</code>).
The plugin is not supported. This doesn’t mean that I will not look into submitted bugs. Anyway, 
don’t expect prompt answers, since this is done in my spare time.
<h3>To do</h3>
Many things should be done in future releases. Here are some:
<ul>
<li>Current version always downloads selected linked images. This works good with images hosted on external sites. 
If your posts link to images hosted in your media library, you will end up with two images.</li>
<li>A more user friendly name should be used for images added to the library (e.g. Thumbnail for post …)</li>
<li>Somewhere, a button to reset the “previously scanned” status of all posts should be provided (on current version, 
you cas set or reset it for single posts in the edit page.</li>
<li>“previously scanned” status should probably be reset (or at least you should be asked to) when publishing a 
updating an existing post</li>
</ul>
More ideas are wellcome.

Automatic Thumbnail Generator

Automated on-demand generation of posts thumbnails.

Alexandre Gaboriau

woncercode

wondercode

Easily create eye-catching images for your posts automatically with Magic Post Thumbnail!
Retrieve images from Google Images, DALL·E, Stable Diffusion, Replicate, Pexels, Unsplash or Pixabay thanks to API, based on your post title, text analysis and much more. The plugin add picture as your featured thumbnail or inside the post when you publish the post.
The plugin allows you to configure some settings for your automatic images : Image bank, language search, selected post types, image type, free-to-use or not, image size and much more.
Tired of spending hours searching for the perfect images for your posts? Magic Post Thumbnail! does the hard work for you!
<a href="https://magic-post-thumbnail.com/" rel="nofollow ugc">Official Website</a> 
<a href="https://magic-post-thumbnail.com/docs/" rel="nofollow ugc">Documentation</a>
Get a 30% discount for BLACK FRIDAY until November 30 when you upgrade to the Pro version with the code: MPTBLACKFRIDAY25
<iframe loading="lazy" class="youtube-player" width="750" height="422" src="https://www.youtube.com/embed/eNb5MXg5e4I?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en-US&autohide=2&wmode=transparent" allowfullscreen="true" style="border:0;" sandbox="allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox"></iframe>
<h3>What is included ?</h3>
<h4>Magic Post Thumbnail for FREE</h4>
<ul>
<li>Generate Thumbnail for one post</li>
<li>Generate Thumbnails for Posts, Pages & Custom Post Types</li>
<li>new: Insert Image anywhere in your post content!</li>
<li>new: Choose image position up to the 10th occurrence (First to Tenth, plus Last) when inserting images in your post content!</li>
<li>Image based on Titles or Text Analysis</li>
<li>New: Gutenberg Block for searching and adding images to your posts</li>
<li>Images from Google Image, Google API, Pixabay, Openverse, DALL·E or Flickr</li>
<li>Mass Image Generation for chosen posts or chosen taxonomies</li>
<li>Image generated randomized</li>
</ul>
<h4>Magic Post Thumbnail PRO</h4>
Upgrade to our PRO version to unlock even more advanced features and take your blog to the next level!
<ul>
<li>Customisable Crons</li>
<li>Set different image locations for each post generation.</li>
<li>Images from Youtube, Stable Diffusion, Replicate (42 models), Unsplash or Pexels</li>
<li>More images with the Gutenberg Block</li>
<li>Image search based on Tags, Categories, Text Analyser per paragraph Custom Fields, Custom Request and OpenAI Keyword Extractor</li>
<li>Image Modifications: Flip horizontally and/or Crop Image by 10%</li>
<li>Compatibility with REST requests, WPeMatico, FeedWordPress, WP All Import, Featured Image from URL, CMB2, ACF and metabox.io</li>
<li>Restricted domains</li>
<li>Setup a proxy</li>
<li>24h Support</li>
</ul>
<a href="https://www.youtube.com/watch?v=crI3V-Kkb8k" rel="nofollow ugc">Youtube Tutorial</a>
<h3>Translations</h3>
<ul>
<li>French</li>
<li>Spanish</li>
</ul>
<h3>Support the plugin</h3>
If you’ve found the plugin useful, please consider <a href="https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=contact%40magic-post-thumbnail.com&item_name=Donation+for+Magic+Post+Thumbnail&currency_code=EUR&source=url" rel="nofollow ugc">making a donation</a>. Thank you for your support !

Generate Images (AI) – Magic Post Thumbnail

Get images for your posts with automatic generation & multiple banks. Generate as featured images or in your content with Gutenberg Block and in bulk

Automatic Thumbnail Generator vs Generate Images (AI) – Magic Post Thumbnail