| Ecommerce & Shopping Carts | |
| WooCommerce Open-source ecommerce plugin turning WordPress into an online store | 8.3M sites |
| CMS & Website Builders | |
| WordPress Open-source CMS powering websites, blogs, and content management | 57.6M sites |
| WordPress Themes & Plugins | |
| WordPress Block Editor Block-based content editor built into modern WordPress | 11.9M sites |
| WordPress Site Editor Full-site editing interface built into modern WordPress | 4M sites |
| wpBakery Drag-and-drop page builder plugin for WordPress | 3.2M sites |
| Forms & Lead Capture | |
| Contact Form 7 Widely used WordPress plugin for building contact forms | 11.7M sites |
| Hosting & Cloud Providers | |
| Register-As Italian domain registrar and hosting provider. | 720.1K sites |
| Web Servers & Operating Systems | |
| Nginx High-performance web server and reverse proxy widely deployed | 141.9M sites |
| Languages & Back-End Frameworks | |
| PHP Server-side scripting language powering a large share of websites | 91.4M sites |
| JavaScript Libraries & Widgets | |
| Magnific Popup Responsive lightbox and popup library for images and content | 6.3M sites |
| Modernizr JavaScript library detecting browser feature support | 5.8M sites |
| Slider Revolution Popular slider and visual content builder for WordPress sites | 5M sites |
| Swiper Modern touch slider and carousel library for web and mobile | 19.7M sites |
| Underscore.js JavaScript utility library offering functional programming helpers | 4.9M sites |
| jQuery Widely used JavaScript library simplifying DOM manipulation, events, and AJAX | 92.3M sites |
| jQuery Migrate Compatibility shim restoring deprecated jQuery APIs for older code | 39.8M sites |
| waitForImages jQuery plugin firing callbacks after images finish loading | 384.7K sites |
| Databases & Caching | |
| MySQL Popular open-source relational database used by many web applications | 59.5M sites |
| Media, Maps & Social | |
| Custom Twitter Feeds WordPress plugin embedding customizable Twitter feeds | 191.9K sites |
| Google Maps Embeddable interactive maps and location services from Google | 9.4M sites |
| Instagram Feed for WordPress WordPress plugin embedding Instagram feeds on a site | 1.4M sites |
| Smash Balloon Instagram Feed WordPress plugin displaying customizable Instagram feeds | 1.2M sites |
| SEO & Content Discovery | |
| RSS Web feed format syndicating site content for readers and aggregators | 54.2M sites |
| Fonts & Icons | |
| Google Font API Google service delivering free web fonts to websites | 90.8M sites |
| Ionicons Open-source icon set built for web and mobile apps | 991.4K sites |
| Contact Form 7 Forms & Popups | 10.4M sites |
| Jetpack – WP Security, Backup, Speed, & Growth Security & Privacy | 8.4M sites |
| Wc | 5.9M sites |
| Wccom Site | 5.8M sites |
| Wc Admin | 5.8M sites |
| Wc Analytics | 5.8M sites |
| Wc Telemetry | 5.6M sites |
| Wc Admin Email | 4.8M sites |
| Wpcom | 3.8M sites |
| My Jetpack | 3.8M sites |
| Jetpack Boost – Website Speed, Performance and Critical CSS Performance & Speed | 3.7M sites |
| Sliderrevolution | 1.6M sites |
| WP Super Cache Performance & Speed | 1.5M sites |
| MailPoet – Newsletters, Email Marketing, and Automation Marketing & Email | 443K sites |
| Simple History – Track, Log, and Audit WordPress Changes Other | 422.3K sites |
| WP Rollback – Rollback Plugins and Themes Other | 293.1K sites |
| 226.3K sites | |
| Qode Api | 170.9K sites |
| Flexible Checkout Fields for WooCommerce – WooCommerce Checkout Manager Other | 77K sites |
| Mailpoet Email Editor | 28.1K sites |
| Mildhill | 198 sites |
| Swiss Bitcoin Pay Payments & Checkout | 37 sites |
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