Mello

投稿にサムネイルが設定されているかチェックします。 
サムネイルが設定されていない場合、自動でフリーの画像素材サイトからランダムで画像をダウンロードしてサムネイルに設定します。 
ダウンロードする素材サイトはpixabayです 
ダウンロードできる画像の種類は100種類前後 
負荷対策で投稿数が多い場合は時間がかかることがあります
Make sure thumbnails are set for posts. If there are no thumbnails in the post, download the image randomly from the free image material site and set it as a thumbnail. 
The image to be downloaded is acquired from pixabay. 
Pixabay is a free material site that can also be used for commercial purposes.
The image to download is random 
The downloaded image can be checked from the media. 
If there are many posts, the thumbnail images may be duplicated. 
There are about 100 images to download. 
We will execute it at regular intervals with load balancing to the server. 
Recommended environment is PHP 7.0 or higher.
<h3>Arbitrary section 1</h3>

Thumbnail_Create

記事のサムネイルを自動で作成。画像を素材サイトから自動でダウンロードします。

Stanislav Khromov

This plugin enables upscaling of thumbnails for small media attachments. The default behaviour of WordPress is to not upscale small images, which means 
you are never guaranteed a certain size for a thumbnail format. This plugin corrects that and upscales small images to the specified thumbnail dimensions. 
This is beneficial in grid layouts where images of different sizes can make the grid malfunction.
<a href="https://wordpress.org/plugins/thumbnail-upscale/screenshots/" rel="ugc">Check screenshots for an example!</a>
Important: Your thumbnails format must have the crop setting enabled to be processed by this plugin.
Usage
After you have enabled Thumbnail Upscale plugin, all your future uploaded images will be upscaled. 
For existing images, install and run <a href="https://wordpress.org/plugins/force-regenerate-thumbnails/" rel="ugc">Force Regenerate Thumbnails</a> 
This will upscale your existing media images!
<h3>Requirements</h3>
<ul>
<li>PHP 5.2 or higher strongly recommended</li>
</ul>
<h3>Translations</h3>
None. The plugin has no translateable strings.

Thumbnail Upscale

Whaaaaat? You don't use this plugin? It's good.

It’s still relevant god damn it

Enables upscaling of thumbnails for small media attachments

Thumbnail_Create vs Thumbnail Upscale