| Ecommerce & Shopping Carts | |
| WooCommerce Open-source ecommerce plugin turning WordPress into an online store | 8.5M sites |
| CMS & Website Builders | |
| WordPress Open-source CMS powering websites, blogs, and content management | 58.6M sites |
| WordPress Themes & Plugins | |
| Elementor Popular drag-and-drop page builder plugin for WordPress | 17.8M sites |
| JetEngine WordPress plugin building dynamic content and custom post types | 311.9K sites |
| Redux Framework Options framework used by WordPress themes and plugins | 1.3M sites |
| Forms & Lead Capture | |
| Mailcheck JavaScript utility suggesting corrections for mistyped email addresses | 902K sites |
| CDN & Edge Delivery | |
| Cloudflare Global CDN and edge platform delivering and protecting websites | 208.7M sites |
| cdnjs Free public CDN hosting popular open-source JavaScript libraries | 15.7M sites |
| jsDelivr Free open-source CDN for JavaScript, CSS, and assets | 17.7M sites |
| Web Servers & Operating Systems | |
| Nginx High-performance web server and reverse proxy widely deployed | 146.9M sites |
| Languages & Back-End Frameworks | |
| PHP Server-side scripting language powering a large share of websites | 93.5M sites |
| Front-End Frameworks & UI Toolkits | |
| Bootstrap Popular CSS and component framework for responsive layouts | 39M sites |
| JavaScript Libraries & Widgets | |
| Backbone.js JavaScript framework structuring apps with models and views | 583.5K sites |
| Chosen JavaScript library enhancing select boxes with search | 683.9K sites |
| Moxie JavaScript runtime library powering cross-browser file uploads | 185.5K sites |
| OWL Carousel Touch-enabled jQuery carousel and slider library | 8M sites |
| Plupload JavaScript library handling multi-file uploads across browsers | 180.7K sites |
| Popper JavaScript positioning engine for tooltips and popovers | 4.5M sites |
| Slick Responsive carousel and slider library for web pages | 7.7M sites |
| Snap.svg JavaScript library for working with SVG graphics. | 50.3K sites |
| SweetAlert2 JavaScript library for styled, responsive popup alerts | 1.3M sites |
| Swiper Modern touch slider and carousel library for web and mobile | 20M sites |
| Underscore.js JavaScript utility library offering functional programming helpers | 5M sites |
| imagesLoaded JavaScript utility detecting when page images have finished loading | 8.4M sites |
| jQuery Widely used JavaScript library simplifying DOM manipulation, events, and AJAX | 93.8M sites |
| jQuery Migrate Compatibility shim restoring deprecated jQuery APIs for older code | 40.4M sites |
| Databases & Caching | |
| MySQL Popular open-source relational database used by many web applications | 60.6M sites |
| Fonts & Icons | |
| Font Awesome Popular icon library and toolkit for scalable web icons | 58.5M sites |
| Google Font API Google service delivering free web fonts to websites | 94.4M sites |
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