This plugin asynchronously loads jQuery and its plugins without "jQuery is undefined" errors.

Frank Goossens

Deny Dias

Autoptimize criticalcss.com power-up

Autoptimize criticalcss.com power-up adds automated critical css creation to Autoptimize integrating with the https://criticalcss.com service.

ShortPixel

ShortPixel Critical CSS

Critical CSS plugin by ShortPixel to speed up your website. Easy to use, works on any website.

Derrick Hammer

WP Critical CSS

WordPress plugin that will use CriticalCSS.com to automatically generate above-the-fold CSS for your pages.

bypr.nils

Smart Image Loader

Smart Image Loader is a fire-and-forget priority and lazy loader for image sources. Can be a huge performance boost especially for one pagers.

Adnan

WPBrigade

Inline JS Block for Gutenberg

Inline JS block helps in adding above the fold JS or for your Advanced customization needs.

jerrystewart99

Lazy Load Fix for Divi

Provides precise control of which media (images) are lazy-loaded for optimum page load performance.

Texiwill

AAC Scoring

Improves Pagespeed/GTMetrix/SEMrush/Yslow scores for Twenty Fourteen and other themes by reducing round trips, moving core CSS above the fold.

Inline CSS Block for Gutenberg

Inline CSS block helps in adding above the fold CSS or for your Advanced customization needs.

Vitalii Rizo

Loading of JavaScript resources should be done asynchronously, in a non-blocking manner, so the load time of your webpage will not be affected (it would not be delayed by render-blocking JavaScript). But using of deferring or async loading of jQuery causes lots of problems with jQuery plugins. This plugin replaces default WordPress’s JS loader with a special jQuery loader (jQl), that’s why there are no any errors with jQuery plugins.
It’s highly recommended to use any concatenate plugin, e.g., Fast Velocity Minify or WP Fastest Cache. Please, do not add jQuery to the ignore list, because this plugin fixes “undefined jQuery” errors on the console log. Also, it is allowed to use defer or async parsing of JS files.
It requires WordPress 4.1 and newer.
It is available in English and Russian.

Alternatives to jQuery & Plugins Asynchronous Loader

Top alternatives