How to Add Featured Images to Multiple WordPress Posts Quickly
How do you add featured images to multiple WordPress posts without editing each one? When we turned on post thumbnails in our theme in 2012, we found that every old post needed a featured image set by hand: open the post, open the media gallery, pick an image, save. I gave up after a few posts and found a faster way. The plugin we used then is no longer maintained, but better bulk tools exist today. Here is how to do it in 2026.
Quick answer: Install the free Quick Featured Images plugin, go to Featured Images, then Set, Replace, Remove, and choose an action such as “Set the first image in the post as featured image” or “Set a selected image as featured image”, filter the posts by category or tag, preview and apply. Always back up your database before bulk changes.
Table of Contents
Why featured images matter
- They appear on your blog index, archives, related posts and sidebar widgets.
- Social networks use them (through the og:image tag) when your posts are shared.
- Search engines and Google Discover favour posts with large, relevant images.
SEO plugins like Rank Math fall back to a default share image when a post has none, so posts without featured images look the same on social media.
Method 1: Quick Featured Images (bulk)
- Install and activate Quick Featured Images.
- Open Featured Images > Set, Replace, Remove.
- Choose an action: set the first content image as featured, set one chosen image for many posts, replace or remove featured images.
- Add filters, such as a category, tag or date range, to limit which posts change.
- Review the preview list, then confirm.
The plugin also adds a featured image column to your Posts list, so you can spot posts without one and set images quickly.
Method 2: Use the first image in each post automatically
Many old posts already contain images but no featured image. The “first image” action above handles this in one go. Plugins like Auto Featured Image can also generate featured images for older and new posts. Check results on a few posts first; small screenshots and icons make poor featured images.
Method 3: Set images from the Posts list
For a handful of posts, open Posts, use the featured image column added by such plugins, or Quick Edit where your theme supports it. In 2012 we used the Bulk-Select Featured Image plugin to assign images straight from the Media Library; it has not been updated in years, so avoid it on current WordPress versions.
Tips for good featured images
- Use at least 1200 x 630 pixels for good social sharing and Google Discover.
- Compress images and use WebP; see our guide to WordPress image compression.
- Add descriptive alt text.
- Avoid using one generic image for every post; unique images get more clicks.
- Do not use images you lack rights to; try free stock photo sites.
Should old posts without images get a default image?
A default fallback image fills gaps, but it can make archive pages look repetitive. For important posts, a custom image is better; for low-traffic old posts, showing text-only cards on archives is often fine.
Find posts without featured images
Before bulk changes, see how big the gap is. With Quick Featured Images active, sort the new image column in Posts to bring posts without a featured image to the top. You can also filter by category to fix your most popular sections first. Start with posts that still get traffic, since those are the ones shown in search results, related posts and social shares.
FAQ
Can I bulk add featured images without a plugin?
Not from the standard dashboard. Developers can use WP-CLI or a script, but a plugin is safer for most users.
Will setting featured images change my post URLs?
No. Featured images do not affect permalinks.
Why is my featured image not showing?
Your theme may not display it on that template, or it may need regenerated thumbnail sizes. Check theme settings first.
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It worked great for me until I made a child theme – I saw the link beside the post with the parent theme. The plug-ins still activated but the link’s no longer there in the media library.
Any ideas please?
Jacqui
Just tried this plugin August 1, 2013. Does not work.
Bulk featured image plug no longer works. Now it adds an ‘attach’ field on every image that you then have to scroll through every post you have to attach the image to a post. Useless.
With WordPress 3.5, this no longer works, the plugin isn’t compatible with the new media manager that rolled out with this update.
Yes. This is an useful post. I tried this once and left. Now, following your tip. Thanks.
I wonder if there I a similar feature to do images on author bios instead of having to go and find the URL .