Title: Featherwell Author: anu771063 Published: November 4, 2026 Last modified: November 4, 2026 --- Search plugins ![](https://ps.w.org/featherwell/assets/icon-256x256.png?rev=3783084) # Featherwell By [anu771063](https://profiles.wordpress.org/anu771063/) [Download](https://downloads.wordpress.org/plugin/featherwell.1.0.0.zip) * [Details](https://wordpress.org/plugins/featherwell/#description) * [Reviews](https://wordpress.org/plugins/featherwell/#reviews) * [Installation](https://wordpress.org/plugins/featherwell/#installation) * [Development](https://wordpress.org/plugins/featherwell/#developers) [Support](https://wordpress.org/support/plugin/featherwell/) ## Description Images are usually the heaviest part of a page. Featherwell makes them lighter with the image tools already on your server, the same way WordPress itself saves images, and without sending your images anywhere. #### New uploads * JPEG (and, if you like, PNG) uploads are saved as **WebP**, or **AVIF** where the server supports it. WordPress makes the full-size image and every smaller size in the new format. * The uploaded file is always kept as the original. * Choose the quality, and the largest width or height for images on the site (WordPress uses 2560 pixels). * GIF images are never converted, so animations keep working. #### The existing Media Library * Convert every image in safe steps, with a progress bar. The job can be paused and continued, even after leaving the page. * Each image is rebuilt from its original upload, so quality is as good as it can be. * See every image’s format and how much lighter it became. * **Undo** one image or all of them at any time. #### Older posts keep working and get lighter Posts written before converting still link to the old JPEG files. Featherwell shows them the new files as the page is displayed, so visitors get the lighter images and WordPress can add its responsive sizes again. The posts themselves are never edited. #### Images without a size Images without a width and height make the page jump while it loads (Cumulative Layout Shift). WordPress adds both only to images it knows from the Media Library. Featherwell adds them to the other images from your uploads folder too, by reading their size once. #### Careful with your files * **The original upload is never changed or removed.** * **Old copies stay until you remove them.** “Remove old copies” deletes only files that nothing links to: posts, page builder data, custom fields, settings and term fields are all checked. Linked files stay, so older pages keep working even without Featherwell. * **Images are skipped when converting could harm them:** images edited in WordPress’s image editor (rebuilding from the original would lose the edit), images whose original file is missing, and images whose new file name is already used by another image in the same folder (for example photo.jpg and photo.png). * If the server cannot save an image in the new format, the image is left exactly as it was. #### For developers * `wp featherwell status` * `wp featherwell convert --all` or `wp featherwell convert 12 34` * `wp featherwell undo --all` or `wp featherwell undo 12` * `wp featherwell clean-up --yes` Featherwell uses WordPress’s own image functions and filters (`image_editor_output_format`,` wp_editor_set_quality`, `big_image_size_threshold` and `wp_create_image_subsizes()`). #### Privacy Images never leave your server. Featherwell makes no requests to other servers, uses no cookies and collects no data. ## Installation 1. Install Featherwell from the Plugins screen and activate it. 2. Go to Media > Featherwell. The overview shows whether your server can save WebP and AVIF. 3. New uploads are converted from now on. Click “Convert” to convert the images already in the library. ## FAQ ### Do all browsers show WebP and AVIF? WebP works in every current browser. AVIF works in all current browsers too; very old browsers may not show it, so WebP is the safer choice for most sites. ### My server does not offer AVIF. AVIF needs Imagick or a version of PHP’s GD library built with AVIF support. Your host can tell you whether it is available. WebP is available on almost every server. ### What happens if I uninstall Featherwell? Converted images keep working: they are ordinary WordPress images in the new format. Older posts go back to showing the old files, which are still there unless you removed them, and old files that something links to are never removed. Your original uploads were never changed. ### Does it change my posts? No. Older posts are shown the new files as the page is displayed; what is stored in the database stays the same. ### Can I undo everything? Yes. “Undo” puts an image back in its original format. If the old copies were removed, they are rebuilt from the original upload. ## Reviews There are no reviews for this plugin. ## Contributors & Developers “Featherwell” is open source software. The following people have contributed to this plugin. Contributors * [ anu771063 ](https://profiles.wordpress.org/anu771063/) [Translate “Featherwell” into your language.](https://translate.wordpress.org/projects/wp-plugins/featherwell) ### Interested in development? [Browse the code](https://plugins.trac.wordpress.org/browser/featherwell/), check out the [SVN repository](https://plugins.svn.wordpress.org/featherwell/), or subscribe to the [development log](https://plugins.trac.wordpress.org/log/featherwell/) by [RSS](https://plugins.trac.wordpress.org/log/featherwell/?limit=100&mode=stop_on_copy&format=rss). ## Changelog #### 1.0.0 * First release. ## Meta * Version **1.0.0** * Last updated **12 hours ago** * Active installations **Fewer than 10** * WordPress version ** 6.8 or higher ** * Tested up to **7.1.4** * PHP version ** 7.4 or higher ** * Tags * [AVIF](https://wordpress.org/plugins/tags/avif/)[convert images](https://wordpress.org/plugins/tags/convert-images/) [image optimization](https://wordpress.org/plugins/tags/image-optimization/)[media library](https://wordpress.org/plugins/tags/media-library/) [webp](https://wordpress.org/plugins/tags/webp/) * [Advanced View](https://wordpress.org/plugins/featherwell/advanced/) ## Ratings No reviews have been submitted yet. [Your review](https://wordpress.org/support/plugin/featherwell/reviews/#new-post) [See all reviews](https://wordpress.org/support/plugin/featherwell/reviews/) ## Contributors * [ anu771063 ](https://profiles.wordpress.org/anu771063/) ## Support Got something to say? Need help? [View support forum](https://wordpress.org/support/plugin/featherwell/)