Default Image Assistant

by Xiangxu

Description

Default Image Assistant allows you to assign a default featured image for each public post type in WordPress.
If a post has no featured image set, the plugin automatically loads the default image you assigned.

Perfect for:
* Blogs that require a fallback image
* Custom post type archives
* Editorial workflows
* Sites with large content teams

Features:
* Visual Media Library selector for each post type
* Clean and modern card-style admin UI
* One-click remove default image
* No front-end bloat—only loads when needed
* Works with all themes (including block themes)

Installation

Upload the plugin folder to /wp-content/plugins/default-image-assistant/
Activate the plugin through the Plugins menu in WordPress
Go to Settings Default Image Assistant
For each post type:
- Click Select Image
- Choose an image from the Media Library
- Save your settings

Your default images will now be used automatically whenever a post does not have a featured image.

Screenshots

Admin settings page listing all post types
Image preview panel with Select / Remove buttons
Default image applied automatically to posts without a featured image

Faq

Does this overwrite posts that already have featured images?

No. If a post already has its own featured image, the plugin does nothing.

Will this slow down my site?

No. It only uses wp_get_attachment_image() and lightweight filters.
No front-end scripts or styles are loaded.

Can I assign different default images for custom post types?

Yes. Any public post type registered via plugins or themes is supported.

Does it support block themes (FSE)?

Yes. It works regardless of theme type.

Reviews

Changelog

1.0

Initial release
Added media selector UI
Added per-post-type default image storage
Added front-end featured image fallback logic