aviplugins.com

Speed up your website by serving images in WebP format. This plugin will replace files in standard JPEG, PNG and GIF formats with WebP format.
After installation go to plugin settings and enable webp images. You can convert all images in Media Library or convert selected images only. The plugin will reduce the size of the image without compromising image quality.
The plugin will ditect if Webp images are supported by the client browser or not and then serve the images accordingly. 100 images can be converted per month.
<h4>Webp Converter PRO</h4>
The PRO version can convert 500 images per month. Get it for USD 2.00 Check it out <a href="https://www.aviplugins.com/webp-converter-pro/" rel="nofollow ugc">here</a>.
<blockquote>
Post your plugin related queries at <a href="https://www.aviplugins.com/support.php" rel="nofollow ugc">https://www.aviplugins.com/support.php</a>
</blockquote>

Webp Converter

Convert Media Library images in next-gen format and speed up your website

roberto.c

Please use at least version 1.8.3 of NextGEN Gallery. This plugin is not tested with lower versions
NextGEN Gallery Comments give power to the best wordpress gallery plugin i have seen! With my plugin, now all users can leave comments to your galleries. Comments are also displayed in admin in Comments section and in manage gallery page.
** * * NOTE * * **
For now, comments are show on galleries only when they are not called directly in post/page with shortcode. Example:
[nggallery id=X] —-> gallery comments are not showed
[album id=X] —-> gallery comments are showed (Not in album list, but inside the gallery page)
I will check in next release to find a way to do it.
<h4>Features</h4>
<ul>
<li>Template : You can add custom comment form template for your theme. (read F.A.Q.)</li>
</ul>
<h3>Credits</h3>
Copyright 2011 by Roberto Cantarano
This program is free software; you can redistribute it and/or modify 
it under the terms of the GNU General Public License as published by 
the Free Software Foundation; either version 2 of the License, or 
(at your option) any later version.
This program is distributed in the hope that it will be useful, 
but WITHOUT ANY WARRANTY; without even the implied warranty of 
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 
GNU General Public License for more details.

NextGEN Gallery Comments

This plugin add comments (form and list) in every NextGEN Gallery.

Webp Converter vs NextGEN Gallery Comments