Load smaller content images for mobile devcices with a mobile first approach
As of April 2026, Mobile First Content Images is a WordPress mobile plugin with 10 active installations and a 0/5 rating0. It has been downloaded 1.8K+ times in total. Requires WordPress 3.0+ and PHP false+. Available on WordPress.org since 2012. Last updated 14 years ago — may have compatibility concerns. Top alternative: AMP.
The plugin tries to detect what device the user is on. If it’s detected as a mobile device or unknown the content images can be swapped with a smaller Post Thumbnail size of choice to save bandwidth.
When testing if the plugin swapped your images use a real device or the iphone simulator. Changing the useragent to mobile on you desktop browser will not work.
You can find the code on Github and do whatever you like with it
phpQuery for making it easy to parse the html and Categorizr for mobile first device detection.
| WordPress | 3.0+ requiredTested up to 3.3.2 |
| PHP | false+ required |
Plugin data sourced from WordPress.org. Analysis and metrics by PluginSift.