
We can see that there are two groups of free plans: the plans that have a limited monthly quota (ShortPixel and TinyPNG) and the unlimited plans that have a strong limitation feature-wise. Unfortunately, there is no online service for the rest of the tools: Smush, EWWW Image Optimizer, Robin and Optimus. TinyPNG: Online image compressor available.Imagify: Online image compressor available.ShortPixel: Online image compressor available.Wouldn’t it be nice to be able to see how the optimized images look before going to your WordPress dashboard and installing the plugins? Only three of the contenders offer this option: Features comparison Online image compressor We are going to compare ShortPixel Image Optimizer with Smush, EWWW, Imagify, TinyPNG, Robin and Optimus, the most popular image optimization plugins in the WordPress repository in 2021. In this review, we’ll only focus on local optimization, where the images are compresses on your own server. That’s the case of ShortPixel Adaptive Images, Optimole, WP Compress, Flying Images, etc.

Besides ShortPixel, we looked at other well-known image optimization tools, such as Imagify, Smush and ENowadays there are many other products that use a different approach, like taking the images and storing them on a CDN, from where they will be optimized and served. Our analysis required a thorough exploration of the world of image compression for WordPress, and we did exactly that. Back in 2017 we made a pretty good comparison of image optimizer plugins or services for WordPress, and we found out that ShortPixel was overall the best.
