Offline Shell is a WordPress plugin which utilizes the client side [ServiceWorker API](https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker …
As of April 2026, Offline Shell is a WordPress cache plugin with 10 active installations and a 0/5 rating0. It has been downloaded 3.2K+ times in total. Requires WordPress 3.0.1+ and PHP false+. Available on WordPress.org since 2016. Last updated 10 years ago — may have compatibility concerns. Top alternative: WP Fastest Cache – WordPress Cache….
Offline Shell is a WordPress plugin which utilizes the client side ServiceWorker API to cache theme files for performance and offline purposes.
The WordPress admin can select which files to cache, update the cache list at any time, and see their site performance improve while ensuring important assets are available offline.
| WordPress | 3.0.1+ requiredTested up to 4.4.34 |
| PHP | false+ required |
Plugin data sourced from WordPress.org. Analysis and metrics by PluginSift.