Image Optimizer – Optimize Images and Convert to WebP or AVIF

What is Image Optimizer?

Image Optimizer is a WordPress plugin designed to reduce image file sizes and convert images to modern formats like WebP and AVIF. Developed by Elementor, the plugin has been available for two years. It currently claims over 1 million active installs. However, user satisfaction is extremely low, with a 1.6 out of 5 star rating from 75 total ratings. A stark 77% of those ratings are 7% are five-star. This data suggests significant performance or usability issues for the majority of its user base.

The plugin offers lossless and lossy compression, bulk optimization, and background processing. It supports JPEG, PNG, WebP, AVIF, and GIF formats. Despite its feature set and the backing of a major developer, the rating indicates a disconnect between the advertised capabilities and the real-world experience.

Key Features of Image Optimizer

• Background Optimization: Processes images on a dedicated server, allowing you to leave the page during optimization without interrupting the process.
• Bulk and Individual Optimization: Compress or resize your entire media library at once, or target single images for on-demand adjustments.
• WebP and AVIF Conversion: Automatically converts uploaded images into modern, smaller file formats for faster page loads.
• Two Compression Levels: Choose between lossless compression for maximum quality or lossy compression for smaller file sizes.
• Automatic Image Resizing: Set a maximum pixel width (default is 1920px) to automatically scale down large images on upload.
• EXIF Metadata Control: Remove image metadata to further reduce file size without affecting visual quality.
• Backup and Restore: Save original images and restore them later if needed, with an option to permanently delete backups.
• Selective Thumbnail Optimization: Choose which specific WordPress-registered image sizes to compress, rather than processing all thumbnails.

Who Should Use Image Optimizer?

This plugin targets site owners who want to improve Core Web Vitals and SEO by reducing image sizes. The setup is straightforward, making it accessible to beginners who need a simple "set and forget" tool. The background processing feature is ideal for users with large media libraries who cannot keep their browser tab open during optimization.

Given the 1.6 rating and 77% one-star reviews, potential users should proceed with caution. The plugin may suit those willing to test it on a staging site first. It is not recommended for production sites that rely on stable, high-quality image processing. The low resolution rate of 0% over the last two months of support threads is a clear warning sign.

Installation & Setup

Install the plugin via the WordPress admin plugin installer or by uploading the extracted zip folder to the wp-content/plugins/ directory. After activation, navigate to the Image Optimizer tab to configure your compression levels and resize limits. The process is beginner-friendly and requires no coding knowledge.

Support & Community

The support data paints a troubling picture. In the last two months, there is 1 open support thread and 0 resolved threads, resulting in a 0% resolution rate. This suggests that users encountering problems are not receiving help. The rating distribution reinforces this: 77% of the 75 ratings are one-star, indicating widespread dissatisfaction. The plugin requires WordPress 6.7+ and PHP 7.4+, which are modern requirements, but the lack of responsive support is a critical weakness for any plugin with over 1 million installs.