MatthewRuddy

Rocket Galleries is the gallery manager WordPress never had. Easily create and manage galleries from one intuitive panel within WordPress. Simple, easy to use, and lightweight. Some of the features include:
<ul>
<li>Lightweight, with no Javascript needed and minimal CSS at less than 0.3kb!</li>
<li>Bulk image uploading, integrated with new WordPress Media Library</li>
<li>A built in template loader, allowing you to create your own gallery templates for your theme</li>
<li>Developer friendly, with huge scope for customization using built-in actions & filters</li>
</ul>
Follow & contribute to this plugin on <a href="https://github.com/rocket-galleries/rocket-galleries" rel="nofollow ugc">Github</a>.
The modern, straight forward interface is built to fit right into the WordPress admin area. It’s built to feel like native WordPress functionality, not a plugin, which is great for impressing clients and instantly feeling familiar with the plugin’s admin area. Simple, just the way we like it.
Rocket Galleries is also developer friendly. We’ve made it easy to integrate the plugin with your theme by including a template loader. This allows you to create your own gallery templates and use your own HTML, CSS and Javascript easily. We’ve also included dozens of filters and actions within the plugin’s code, allowing you to hook into the core and create your own Rocket Galleries extensions. The possibilities are limitless!
Last but not least, Rocket Galleries is a very new plugin, so we look forward to your feedback. Over the next couple of months we’re hoping to rapidly develop it’s functionality, so feel free to use the <a href="https://wordpress.org/support/rocketgalleries/" rel="ugc">Support Forums</a> to make feature suggestions and feedback.

Rocket Galleries

Rocket Galleries is the gallery manager WordPress never had. Easily create and manage galleries from one intuitive panel.

Mario Peshev

DevriX

This plugin allows you to easily create an image gallery on any post, page or custom post type. 
Images are can be added and previewed from the metabox. Images can be re-ordered by drag and drop.
About:
There comes a time when you need more flexibility than the standard WP gallery offers, That’s when this plugin steps in. 
This plugin’s goal is to make it easy to create a gallery and place it wherever you need. 
A perfect example would be to create a product gallery for an ecommerce website and then 
have the flexibility to position it where you wanted to match your theme’s design.
Features:
<ol>
<li>Added the possibility to add two or more different galleries on one page</li>
<li>Drag and drop re-ordering</li>
<li>Add gallery to any post, page or custom post type</li>
<li>If more than one image is added to the gallery, the images become grouped in the lightbox so you can easily view the next one</li>
<li>CSS and JS are only loaded on pages where needed</li>
<li>Images link to larger versions (can be turned off)</li>
<li>Fully Localized (translation ready) with .mo and .po files</li>
<li>Add multiple images to the gallery at once</li>
<li>Uses the thumbnail size specified in Settings -> Media</li>
<li>Custom webfont icon for hover effect</li>
</ol>
<h4>Whats’ New</h4>
<ol>
<li>Added Gutenberg Support</li>
<li>Added New Gallery – Luminous</li>
</ol>
<h4>Usage</h4>
Use the shortcode or the function to show the gallery.
<h4>Shortcode Usage</h4>
Use the following shortcode anywhere in the content area to display the gallery
<pre><code>[easy_image_gallery gallery="XXX"]
</code></pre>
Where “XXX” is the ID of the gallery item.
<h4>Template Tag Usage</h4>
The following template tag is available to display the gallery
<pre><code>if( function_exists( 'easy_image_gallery' ) ) {
 echo easy_image_gallery( "XXX" );
}
</code></pre>
Where “XXX” is the ID of the gallery item.
If you use the template tag above, you will need to remove the default content filter:
<h4>Developer Friendly</h4>
<ol>
<li>Modify the gallery HTML using filters</li>
<li>Developed with WP Coding Standards</li>
<li>Easily add your preferred lightbox script via hooks and filters</li>
<li>Easily unhook CSS and add your own styling</li>
<li>Pass in a different image size for the thumbnails via filter</li>
<li>Minimalistic markup and styling</li>
</ol>
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Easy Image Gallery

Easily create an image gallery on your posts, pages or any custom post type

Rocket Galleries vs Easy Image Gallery