Automatically base64 encodes media images on your site.
As of April 2026, Base64 Images is a WordPress image plugin with 60 active installations and a 4.3/5 rating from 3 reviews. It has been downloaded 5.5K+ times in total. Requires WordPress 4.0.0+ and PHP false+. Available on WordPress.org since 2017. Last updated 5 years ago — may have compatibility concerns. Top alternative: Firelight Lightbox.
NOTE
I am moving away from WordPress development, focusing more on web app development, which means maintaining this plugin no longer makes sense for me.
It will no longer receive updates, unless someone wants to take over the code base? If you are interested, please reach out to me.
Thank you all for your interest and support!
Base64 Images is a simple plugin to encode your media images on your site. Base64 encoding of images can have some SEO benefits for your site.
The plugin is as unobtrusive as possible: activate it, and media images are encoded. Deactivate it, and they are not. No settings, no gunk left in your database. * It hooks into WordPress approved hooks and filters to do its job.
(* There is some caching used for speed benefits, but the cached data will be totall…
| WordPress | 4.0.0+ requiredTested up to 5.5.18 |
| PHP | false+ required |
Plugin data sourced from WordPress.org. Analysis and metrics by PluginSift.