EWWW Image Optimizer

What is EWWW Image Optimizer?

EWWW Image Optimizer is a 14-year-old image compression plugin created by developer Shane Bishop. It has been installed on over 1 million active sites and holds a 4.8 out of 5 rating from 1,834 reviews. 90% of those ratings are 0% are one-star. The plugin automatically compresses, resizes, and converts images to WebP and AVIF formats. It aims to reduce page load times and improve visitor experience by removing oversized files from your media library.

The current version, 8.7.2, was last updated on June 10, 2026. It works with WordPress 6.7 or higher and requires PHP 7.4 or later. The plugin offers both free local compression and a cloud-based API option for servers without direct tool access. Its tagline addresses the frustration of slow sites caused by heavy images, a problem it solves with unlimited optimization at no cost.

Key Features of EWWW Image Optimizer

• Unlimited Local Compression: Compress JPG, PNG, GIF, and SVG images directly on your server using tools like jpegtran and optipng, with average lossless savings of 8%.
• WebP and AVIF Conversion: Convert images to next-gen formats with 60% average savings, compatible with all web hosts and configurable quality settings.
• Lazy Load with Auto-Scaling: Load images only when visible, using properly sized placeholders to prevent layout shift and reduce Cumulative Layout Shift (CLS) scores.
• Image Detective Tool: Identify improperly scaled images and optimize Largest Contentful Paint (LCP) elements directly from your dashboard.
• Bulk Resizing at Upload: Automatically resize images during upload or run bulk resizing across your entire media library to enforce consistent dimensions.
• Local Image Backups: Keep original versions of your images on your own server before optimization, with no reliance on external cloud storage.
• Sharpening for Thumbnails: Apply a sharpening filter to all generated thumbnail images, improving visual clarity without increasing file size.
• GIF Animation Preservation: Maintain animated GIF frames even when creating smaller thumbnail versions of the original file.

Who Should Use EWWW Image Optimizer?

This plugin is designed for site owners of all skill levels. Beginners can activate it and let the automatic settings handle compression at upload. Advanced users can control individual thumbnail sizes, adjust JPG quality from 1 to 100, and choose between lossless or lossy modes. The plugin works on shared hosting, VPS, and dedicated servers running Linux, Windows, macOS, or FreeBSD.

With over 1 million active installs, it suits blogs, e-commerce stores, news sites, and portfolios. The free tier handles unlimited image optimization of any file size, making it viable for high-volume publishers. For sites needing PDF optimization, watermarking, or CDN delivery, the premium plan adds those features along with the SWIS Performance plugin for page caching and critical CSS generation.

Installation & Setup

Install EWWW Image Optimizer from the WordPress plugin directory and activate it. The plugin attempts to automatically install compression binaries like jpegtran and gifsicle into your wp-content folder. If your server lacks the exec() function, you can sign up for free cloud-based compression via the Compress API. Beginners can start optimizing immediately with default settings, while advanced users can access fine-tuning options under the Settings menu.

Support & Community

Support response times are strong based on recent data. In the last two months, the plugin resolved 3 of 4 support threads, achieving a 75% resolution rate. Only 4 threads remained open during that period. The plugin offers free one-on-one email support to all users, including those on the free plan. Bug reports can be submitted through GitHub, and feature requests are collected via a public voting board. The 90% five-star rating from 1,833 total reviews reflects consistent user satisfaction with both the plugin and its support team.