WordPress javascript plugins

Easily add Custom CSS or JS to your website with an awesome editor.

Performance plugin from the WordPress Performance Team, which is a collection of standalone performance features.

Create custom "Shortcodes" easily for HTML, JavaScript, CSS code snippets and use the shortcodes within posts, pages & widgets

Get information about calls to deprecated jQuery features in plugins or themes.

Async Javascript lets you add 'async' or 'defer' attribute to scripts to exclude to help increase the performance of your WordPres …

Enables browsers to speculatively prerender or prefetch pages to achieve near-instant loads based on user interaction.

This plugin updates jQuery to the latest stable version on your website.

Interactive maps and markers on your posts and pages with simple shortcodes.

Add header and footer scripts, PHP Snippets, Custom CSS /JS snippets with advanced conditional logic, and more...

This plugin allows Admin users to individually add HTML, custom CSS, Classes and JavaScript directly to Post, Pages or any other custom post types.

Lazy loading for images and iframes makes your site load faster and saves bandwidth. Uses no external JS libraries and degrades gracefully for non-js …

Auto-boost your SEO with 100% crawlable by Search Engines, hidden content! Readers will be able to expand more content without refreshing the page, si …

Code Embed provides a very easy and efficient way to embed code (JavaScript, CSS and HTML) in your posts and pages.

Simple plugin to add script to header and footer for individual pages & posts

Scan all of your theme files for potentially malicious or unwanted code.

Offloads select JavaScript execution to a Web Worker to reduce work on the main thread and improve the Interaction to Next Paint (INP) metric.

Add CSS, JavaScript, PHP and HTML code snippets to your site. For AI-powered snippets, get our free plugin here: wpsnippets.ai

A lightweight plugin that automatically minifies, compresses, and caches HTML, CSS, and JavaScript on demand to improve your website’s load speed.

Easily add custom CSS and JavaScript code to your WordPress site, with draft previewing, revisions, and minification!

Allows your site to use common javascript libraries from Google's AJAX Libraries CDN, rather than from WordPress's own copies.

Lets you use raw HTML or any other code in your posts. You can also disable smart quotes and other automatic formatting on a per-post basis.

Snippets made simple — easily insert and manage custom PHP, CSS, JS & HTML without coding in theme files.

Advance Custom HTML lets you write and display HTML, CSS, PHP, and other code snippets on WordPress with live preview and syntax highlighting.

Move your scripts to the footer to help speed up perceived page load times and improve user experience.

Machete is a lean and simple suite of tools that solve common WordPress annoyances: cookie bar, tracking codes, header cleanup, social sharing

Advanced chat plugin for WordPress. It requires no server, supports multiple channels, bad words filtering, appearance settings, moderation, bans and …

Self-hosted responsive HTML5 video for WordPress, built on the widely used Video.js HTML5 video player. Embed video in your post or page using HTML5.

Version Control for jQuery is one of the easiest ways to control the version of jQuery used on your website.

Automatically boost your PageSpeed score to 90+ for both mobile & desktop and pass Core Web Vitals for WordPress website without any technical skills.

Provides a WordPress interface for SWFObject 2, the best way to embed Flash content on any site.

Enables fancybox on all image links including BMP, GIF, JPG, JPEG, and PNG links.

A JS widget (can be used in posts) for displaying an archive list with some effects.

Easily create, build and deploy React apps into your existing WordPress sites.

WPGatsby is a free open-source WordPress plugin that optimizes your WordPress site to work as a data source for Gatsby. This plugin must be used in c …

Add custom Javascript/HTML/CSS codes to the page head without editing the template.

Make your Website faster by packing and grouping JavaScript and CSS files. Also it provides an opportunity to add CSS & JS via admin panel.

Show an analog clock on your WordPress site sidebar or in post and page content.

The ultimate snippet manager for WordPress. Create and manage custom HTML, CSS, or JS code snippets and control where and when they are displayed.

Shadowbox is an online media vieiwing application similar to Lightbox and Thickbox but with more functionality. Supports all types of media.

Interface for easily defining additional JavaScript (inline and/or by URL) to be added to all administration pages.

[Fixed] This plugin uses the Minify engine to combine and compress JS and CSS files to improve page load time.

Defer the loading of all JavaScripts added with wp_enqueue_script(), using LABJS (an asynchronous javascript library).

A simple Gutenberg block and JS widget (can be called from posts) for displaying categories in a list with some effects.

Darkens the current page and displays an image (like Lightbox, Thickbox, etc.), but is a lot smaller (10KB) and faster.

Move all the possible JavaScript files from head to footer and improve page load times.

A shortcode for displaying a slideshow of image attachments for a post.

Plugin that insert inline javascript in Posts/Pages

Custom CSS and JavaScript allows you to add custom internal and external CSS and JavaScripts to individual posts.

Converts render-blocking CSS and JS files into NON-render-blocking, improving performance of web page.

Makes your website faster by combining all Google Fonts in a single request. Your websites gets a higher PageSpeed score which is good for SEO.

add jquery lazy loading to images

This plugin adds the Modernizr to your WordPress installation.

Help browser to cache a local copy of static files and improve page load times.

WP Custom CSS JS plugin allows you to add any HTML, CSS, Javascript, jQuery or Tracking Pixel easily on your wordpress site right from your dashboard.

This plugin automatically moves JavaScript code to page footer, speeding up page loading time.

Autover plugin will automatically version your CSS and JS files in the generated html page (e.g. style.css?ver=1359464809).

Makes it easy to create your own custom shortcodes.

Enables slimbox 2.03 on all image links including BMP, GIF, JPG, JPEG, and PNG links.

Slide your content in and out

Plugin used to overlay images on the current page into neat Javascript-powered overlay popups.