CW Image Optimizer
Reduce image file sizes and improve performance using Linux image optimization programs.
3.9(14 reviews)
·200 active installs·Updated 11 years agoAs of April 2026, CW Image Optimizer is a WordPress image plugin with 200 active installations and a 3.9/5 rating from 14 reviews. It has been downloaded 69K+ times in total. Requires WordPress 2.9+ and PHP false+. Available on WordPress.org since 2011. Last updated 11 years ago — may have compatibility concerns. Top alternative: Firelight Lightbox.
3.9/514 reviews
200active installs
69K+total downloads
15 yearssince 2011
Overview
The CW Image Optimizer is a WordPress plugin that will automatically and losslessly optimize your images as you upload them to your blog. It can also optimize the images that you have already uploaded in the past.
Because CW Image Optimizer uses lossless optimization techniques, your image quality will be exactly the same before and after the optimization. The only thing that will change is your file size.
The CW Image Optimizer plugin is based on the WP Smush.it plugin. Unlike the WP Smush.it plugin, your files won’t be uploaded to a third party when using CW Image Optimizer. Your files are optimized using the Linux littleutils image optimization tools (available for free). You don’t need to worry about the Smush.it privacy policy or terms of service because your images never leave your…
Screenshots
Ratings & Reviews
3.914 reviews
5 ★
10
4 ★
0
3 ★
0
2 ★
0
1 ★
4
Compatibility
| WordPress | 2.9+ requiredTested up to 4.1.42 |
| PHP | false+ required |
Top Alternatives to CW Image Optimizer
Frequently Asked Questions
Changelog
1.1.10
- Fix exec check on some systems.
Contributors
Plugin data sourced from WordPress.org. Analysis and metrics by PluginSift.