Title: Slim Mobile Theme Switcher Author: Seth Smigelski Published: 10 Meɣres 2026 Last modified: 10 Meɣres 2026 --- Search plugins ![](https://ps.w.org/slim-mobile-theme-switcher/assets/banner-772x250.png?rev=3479290) ![](https://ps.w.org/slim-mobile-theme-switcher/assets/icon-256x256.png?rev=3479290) # Slim Mobile Theme Switcher By [Seth Smigelski](https://profiles.wordpress.org/sethsm/) [Download](https://downloads.wordpress.org/plugin/slim-mobile-theme-switcher.1.0.0.zip) * [Details](https://kab.wordpress.org/plugins/slim-mobile-theme-switcher/#description) * [Reviews](https://kab.wordpress.org/plugins/slim-mobile-theme-switcher/#reviews) * [Installation](https://kab.wordpress.org/plugins/slim-mobile-theme-switcher/#installation) * [Development](https://kab.wordpress.org/plugins/slim-mobile-theme-switcher/#developers) [Support](https://wordpress.org/support/plugin/slim-mobile-theme-switcher/) ## Description Slim Mobile Theme Switcher is a developer-friendly, lightweight solution for sites that need a dedicated mobile experience without the overhead of a heavy mobile plugin. This plugin targets mobile handhelds, ensuring tablet users may still enjoy your full desktop-grade layout. ### Key Features * **True Mobile Detection:** Uses refined regex to separate small-screen phones from tablets (iPads/Android tablets). * **Manual Overrides:** Allow users or testers to force a view using `?theme=handheld` or `?theme=active`. * **Persistent Choice:** Option to remember a user’s manual theme choice for 30 days via cookies. * **No Bloat:** Zero front-end CSS or JS added by the plugin itself. * **Developer Friendly:** Built by a developer for developers. ### How It Works The plugin uses a precise, two-step detection process to ensure the best user experience: 1. **Exclude Tablets:** High-resolution devices (iPads, Android tablets, Kindle Fire) are served the Desktop Theme to take advantage of their screen size. 2. ** Detect Phones:** Handheld mobile devices (iPhone, Android Mobile) are served the Mobile Theme. 3. **Manual Choice:** If a user manually switches via URL, their choice is honored for 30 days via cookies. ## Screenshots * [[ * The settings page where you can choose your mobile and desktop themes. ## Installation 1. Upload the `slim-mobile-theme-switcher` folder to the `/wp-content/plugins/` directory. 2. Activate the plugin through the ‘Plugins’ menu in WordPress. 3. Go to **Settings > Mobile Theme Switcher** to select your mobile and desktop themes. ## FAQ ### How do I add a « View Full Site » link? You can add a link to your mobile theme’s footer: `View Full Site` ### What should I configure in my caching plugin? For best results, exclude the `theme` query parameter from your cache. If your host supports it, enable « Vary by User-Agent » or « Mobile Caching ». ### Why isn’t my theme switching? The most common cause is **Page Caching**. If your host (like WP Engine or Kinsta) or a plugin (like WP Rocket) caches the desktop version of a page, it may serve that cached HTML to mobile users regardless of this plugin. Please ensure « Mobile Caching » or « User-Agent Vary » is enabled in your caching setup. ### Does this work with tablets? By default, tablets (iPads, etc.) are served the **Desktop Theme**. This is a deliberate design choice to ensure high-resolution tablet screens receive the most robust version of your site. ### How do I link to the mobile version manually? Simply add `?theme=handheld` to any URL on your site. To go back to the default/ desktop view, use `?theme=active`. ## Reviews There are no reviews for this plugin. ## Contributors & Developers “Slim Mobile Theme Switcher” is open source software. The following people have contributed to this plugin. Contributors * [ Seth Smigelski ](https://profiles.wordpress.org/sethsm/) [Translate “Slim Mobile Theme Switcher” into your language.](https://translate.wordpress.org/projects/wp-plugins/slim-mobile-theme-switcher) ### Interested in development? [Browse the code](https://plugins.trac.wordpress.org/browser/slim-mobile-theme-switcher/), check out the [SVN repository](https://plugins.svn.wordpress.org/slim-mobile-theme-switcher/), or subscribe to the [development log](https://plugins.trac.wordpress.org/log/slim-mobile-theme-switcher/) by [RSS](https://plugins.trac.wordpress.org/log/slim-mobile-theme-switcher/?limit=100&mode=stop_on_copy&format=rss). ## Changelog #### 1.0.0 * Initial release. ## Meta * Version **1.0.0** * Last updated **1 n waggur ago** * Active installations **Fewer than 10** * WordPress version ** 5.8 or higher ** * Tested up to **6.9.4** * PHP version ** 7.4 or higher ** * Language * [English (US)](https://wordpress.org/plugins/slim-mobile-theme-switcher/) * Tags * [mobile](https://kab.wordpress.org/plugins/tags/mobile/)[mobile theme](https://kab.wordpress.org/plugins/tags/mobile-theme/) [responsive](https://kab.wordpress.org/plugins/tags/responsive/)[Theme Switcher](https://kab.wordpress.org/plugins/tags/theme-switcher/) * [Advanced View](https://kab.wordpress.org/plugins/slim-mobile-theme-switcher/advanced/) ## Ratings No reviews have been submitted yet. [Your review](https://wordpress.org/support/plugin/slim-mobile-theme-switcher/reviews/#new-post) [See all reviews](https://wordpress.org/support/plugin/slim-mobile-theme-switcher/reviews/) ## Contributors * [ Seth Smigelski ](https://profiles.wordpress.org/sethsm/) ## Support Got something to say? Need help? [View support forum](https://wordpress.org/support/plugin/slim-mobile-theme-switcher/) ## Donate Would you like to support the advancement of this plugin? [ Donate to this plugin ](https://www.paypal.com/donate/?hosted_button_id=M3B2Q94PGVVWL)