Nick Leghorn

This plugin adds a section to your Settings menu in the wp-admin section. Through that section you can perform two tasks:
<ul>
<li>A scripted, one-time action updating all of the posts in your blog that do not have a featured image where the script will either try to find a suitable image to use or use one you have provided and configure it for you.</li>
<li>An ongoing, continuous monitoring for posts that do not have a featured image, using the same logic to try and find a suitable featured image and setting that for the post.</li>
</ul>
You can find additional documentation for this plugin on the author’s blog <a href="https://blog.nickleghorn.com/2021/01/25/adding-a-featured-image-to-all-posts-in-wordpress-in-one-easy-click/" title="blog.nickleghorn.com" rel="nofollow ugc">blog.nickleghorn.com</a>
Special thanks to Robert Farago for giving me yet another massive site without any Featured Images to clean up for the impetus to finally make this available.

Featured Image Bulk Set Plugin

This is a plugin designed to do one simple job: programatically add a featured image in WordPress to existing posts. Either images already in the post …

pimwick

PW WooCommerce Bulk Edit is a powerful way to update your WooCommerce product catalog.
<ul>
<li>Live Preview – See what you’re about to change before you hit save. No more surprises!</li>
<li>Inline editing in addition to bulk editing</li>
<li>Safety net: you can undo changes before saving</li>
<li>Edit Variations just as quickly as simple products</li>
<li>Change prices by a specific amount or a percentage</li>
<li>Search/replace text, append, prepend, or change capitalization</li>
<li>Wildcard searches</li>
<li>Keyboard navigation</li>
<li>Compatible with WooCommerce High Performance Order Storage</li>
</ul>
<blockquote>
The <a href="https://www.pimwick.com/pw-bulk-edit/" rel="nofollow ugc">Pro version</a> includes even more great features:
<ul>
<li>Edit so many more fields such as Categories, Sale Prices, Dates, and more! <a href="https://www.pimwick.com/pw-bulk-edit/" rel="nofollow ugc">Click here to see the full list.</a></li>
<li>Set or clear product images in bulk</li>
<li>Create new Variations</li>
<li>Modify selected Attributes</li>
<li>Bulk change the Sale Price based on Regular Price</li>
<li>Additional Filter options like “Is Empty” and “Is Not Empty”</li>
<li>Save and load filters</li>
<li>Use the power of Regular Expressions for searching and replacing text values</li>
<li>Support for other plugins like WooCommerce Brands, MultiVendorX, YITH Multi Vendor, and Dokan Multi Vendor Marketplace!</li>
</ul>
</blockquote>
Your time is priceless 
Finally, no more tedious clicking through countless pages! Make changes to your products at the same time.
Product maintenance, evolved 
Incredibly intuitive, make changes in batches or individually. Shortcut controls mimic working in a spreadsheet. Save your filters with the Pro version to make future updates a snap.
Edit with confidence 
Changes are visible and only saved when you are ready. Price drops are highlighted red for mistake-free editing.
Relax! 
You’re in control of your WooCommerce product catalog with the power of PW WooCommerce Bulk Edit.
This WooCommerce bulk editor lets you modify a variety of product fields including:
<ul>
<li>Product Name</li>
<li>Product Description</li>
<li>SKU</li>
<li>Regular Price</li>
<li>Tax Status</li>
<li>Tax Class</li>
<li>Manage Stock</li>
<li>Stock Quantity</li>
<li>Allow Backorders</li>
<li>Stock Status</li>
<li>Catalog Visibility</li>
<li>Featured</li>
<li>Status</li>
</ul>

PW WooCommerce Bulk Edit

This is what I've been looking for... It is working perfectly!

Great plugin!

A powerful way to update your WooCommerce product catalog. Finally, no more tedious clicking through countless pages!

Featured Image Bulk Set Plugin vs PW WooCommerce Bulk Edit