Install
This is the repository archive. It installs, but the folder name will carry the branch suffix and updates will not flow.
Install straight from GitHub with WP-CLI:
wp plugin install https://github.com/nodethemes/nodethemes-image-optimizer/archive/refs/heads/main.zipFree WebP image optimizer plugin for WordPress.
NodeThemes Image Optimizer is a free WordPress plugin that converts JPEG and PNG images to lightweight WebP with one click from your Media Library, entirely on your own server. No API keys and no third-party service.
- Website: NodeThemes Image Optimizer on nodethemes.com
- All free plugins: Free WordPress plugins from NodeThemes
Features (free version)
- One-click WebP conversion from the Media Library (JPEG and PNG), up to 50 images
- Originals are kept; WebP copies are served automatically on your public pages
- Adjustable WebP quality (10-100)
- Savings shown for every image
- Works with GD (WebP) or Imagick
NodeThemes Image Optimizer Pro
The free plugin is complete on its own. The Pro add-on, sold at nodethemes.com as a yearly license with updates and support, adds:
- Unlimited images
- Automatic optimisation of every new upload
- Bulk optimizer with live progress
- Replace mode (WebP replaces the original)
- Maximum width, height and file size per image
Pro is installed next to the free plugin; your settings and data stay when you upgrade. See the full Free vs Pro comparison table on the product page.
Installation
- Download the latest version from nodethemes.com/free-plugins. You can also click Code → Download ZIP above, but the version on nodethemes.com is ready to upload as it is.
- In WordPress go to Plugins → Add New Plugin → Upload Plugin, choose the zip and click Install Now, then Activate.
- New versions then appear in Dashboard → Updates like any other plugin.
Requirements: see the plugin header and readme.txt.
Guides
Support
- E-mail: nodethemes.com@gmail.com
- Telegram: t.me/nodethemes
- Contact page: nodethemes.com/contact
License
GPL-2.0-or-later. Made by NodeThemes – WordPress themes and AI plugins.