Freemius

Md Nishath Khandakar

Nish Image Optimizer is a fast and simple WordPress plugin designed to make your website lighter and faster. 
It automatically compresses and converts your images into modern formats like WebP and AVIF, while also supporting JPEG and PNG.
By optimizing images directly inside WordPress, you can dramatically improve page speed, Core Web Vitals, and SEO rankings — without relying on third-party APIs or external services. Nish Image Optimizer runs 100% locally on your server using WordPress’ built-in image libraries (GD/Imagick).
<h3>🚀 Key Features</h3>
<ul>
<li>✅ Automatic Optimization on Upload – new images are optimized instantly. </li>
<li>✅ Bulk Optimization – optimize your entire Media Library with a single click. </li>
<li>✅ Multiple Formats – WebP, AVIF, JPEG, PNG. </li>
<li>✅ Skip Already Optimized Images – saves time and resources. </li>
<li>✅ Minimum File Size Skip – ignore small icons or logos. </li>
<li>✅ Fallback Detection – if AVIF/WebP isn’t supported, it falls back to JPEG/PNG automatically. </li>
<li>✅ WP-CLI Support – for developers who want command-line optimization. </li>
<li>✅ Lightweight & Fast – no external API calls, no credits, no monthly limits. </li>
<li>🔑 Pro Features – per-image re-optimization, advanced PNG → WebP/AVIF handling, and more.</li>
</ul>
<h3>🔑 Why Choose Nish Image Optimizer?</h3>
<ul>
<li>100% free to start with essential optimization features. </li>
<li>Pro upgrade unlocks advanced image handling for power users. </li>
<li>Built for speed, simplicity, and WordPress performance best practices. </li>
</ul>

Nish Image Optimizer

Lightweight WordPress image optimizer. Compress JPEG, PNG, WebP, and AVIF automatically for faster websites.

sonirico

rdelblanco

This plugin connects to imagus API and optimize images in jpeg/png/gif/avif/webp/tiff formats. 
In “Settings” => “Imagus” you can customize the plugin. The options are:
<ul>
<li>Quality percentage: The % of compression. Imagus uses lossy compression algorithm, so the lower compression, the lower image quality. 
You might use a percentage quality that prevents a higher pixelation. 70% should be enough.</li>
<li>Automatic compression: Imagus optimizes all the images you upload automatically.</li>
<li>Leave original copies in media folder: if you wanna preserve the original image before imagus acts, enable this option. 
You can replace the compressed image with the original if you aren’t satisfied with the compression result.</li>
<li>Enable modal customized options window: Activate this option if you wanna change the default settings in the media gallery. 
Only available if you have the “Automatic compression” disabled (otherwhise, it has no sense!).</li>
</ul>
You can compress individually or raw in the media library menu (the “Automatic compression” option must be disabled). Just press 
the “Imagus compression” button (the button shows in list mode of the media gallery page) or select that raw action after select a images group on the list.

Imagus image optimizer

Ultimate plugin to optimize media images and recover original backup feature.

Nish Image Optimizer vs Imagus image optimizer