Maor Chasen

AmitT

Winsite

<p>Winsite Image Optimizer will compress your images for optimal file-size while keeping its quality (pretty much) intact, using the ImageOptim API (and other processing engines coming up soon).</p>
<p>You can also process all of your old images retroactively using our dedicated tool, found under the Media section.</p>
<p><strong>Currently-implemented Image Processing Services:</strong></p>
<ul>
<li><a href="https://imageoptim.com/api" rel="nofollow ugc">ImageOptim</a> (You’ll need to obtain an <a href="https://im2.io/register" rel="nofollow ugc">API key</a>)</li>
<li>Send your suggestions on our <a href="https://github.com/win-site/winsite-image-optimizer/issues" rel="nofollow ugc">GitHub issue tracker</a>.</li>
</ul>
<p><strong>Warning</strong>: This won’t work on localhost in some cases, since some services work in a way that they pull images in from your site. This is why you’ll need a public URL in order to make this work locally.<br />
You can use a service such as ngrok to achieve that, in conjunction with this filter:</p>
<pre><code>add_filter( 'wsi_siteurl_override', function( $siteurl ) {
    return 'http://ae190611.ngrok.io/path-to-wp-installation/';
} );
</code></pre>
<p>We’d love to recieve contributions / suggestions from you on our <a href="https://github.com/win-site/winsite-image-optimizer/" rel="nofollow ugc">GitHub project</a>.</p>


Winsite Image Optimizer

Better optimization it's so important for websites. This useful plugin work out of the box with minimum attention and maximum optimization.



Work like a charm!

I have been looking for a reliable image compression tool for WordPress for a long time.. Finally found this one that actually does what it should and does it great. Big shout out to the developers!!!



Awesome !

I can't recommend this plugin as it changed lots of file names and duplicated images.

With some regex I managed to get rid of some of its damage, but with large sites this would have been a nightmare

I would say avoid this plugin to be safe, there are better plugins out there for image compressions

Changed all image file names + weird redirects

The plugin worked good and I've been using it for two years. Some of it's functions are basic and it does rename images, which has been a nuisance for me. I had to use another plugin - Media file rename to remove wsi-imageoptim- prefix from filenames (Google uses image filenames for indexing). But there is a saying: you don't look in teeth a horse which was given to you for free. Therefore three stars.

helpful

Image compression for WordPress done right.

Freemius

levmedia123

<p>No account. No API. No images leaving your server.</p>
<p>Shrinkwell helps you compress images, convert them to modern formats and reduce backup size by finding possibly unused media in your WordPress database. Processing stays local, with no media files uploaded externally for optimization.</p>
<p>Run a 5-image test, review the results, then optimize your full media library with more confidence.</p>
<h4>Built for agencies and freelancers handing off client sites</h4>
<p>Shrinkwell was designed for the moment before you hand a site back to a client and need to prove the optimization work was actually done.</p>
<ul>
<li>Safe test run — optimize 5 images first and inspect the results before touching the full library.</li>
<li>Original backups — keep originals before files are replaced, then restore individual images or the full library when needed.</li>
<li>Delivery proof — scan a live page URL and confirm that WebP files are actually being served, not just generated.</li>
<li>SEO scan — find missing alt text and weak filenames without auto-rewriting anything.</li>
</ul>
<h4>Compression that doesn’t guess</h4>
<p>Choose a named compression profile or dial in your own settings:</p>
<ul>
<li>Balanced — solid savings with sensible quality preservation. Good for most sites.</li>
<li>High — stronger reduction. Best for image-heavy sites where speed matters most.</li>
<li>Near lossless — minimal quality change. Useful for portfolios and product photography.</li>
<li>Custom — a 1–10 strength slider for full control.</li>
</ul>
<p>Shrinkwell can generate WebP automatically and serve it with a safe JPEG/PNG fallback, with no .htaccess edits and no CDN required.</p>
<h4>What you get in the free version</h4>
<ul>
<li>Convert images to WebP and AVIF within the monthly free limit</li>
<li>Manually bulk-optimize JPEG and PNG within the monthly free limit</li>
<li>Preserve existing WebP media items instead of recompressing them</li>
<li>Resize oversized images to a maximum width and height</li>
<li>Strip EXIF/metadata where supported</li>
<li>Optimize thumbnails alongside originals</li>
<li>Generate and serve WebP with automatic JPEG/PNG fallback</li>
<li>Restore individual images or run a bulk restore</li>
<li>Run a Media Cleanup database scan and preview possibly unused images</li>
<li>Review an optimization log with bytes saved, skipped images, and skip reasons</li>
<li>Run a frontend delivery test to confirm active WebP delivery</li>
<li>Run a site scan and apply recommended settings in one click</li>
<li>Works with GD and Imagick, with no external service required</li>
</ul>
<h4>Shrinkwell Pro</h4>
<p>Shrinkwell Pro unlocks unlimited optimization and safe Media Cleanup. That includes unlimited WebP and AVIF optimization, auto-optimize on upload, background bulk optimization, safe bulk cleanup actions, Shrinkwell Trash and advanced cleanup tools.</p>
<h4>What Shrinkwell doesn’t do</h4>
<p>Shrinkwell does not send media files to an external API for optimization, require an account, charge per image, or rewrite alt text or filenames automatically.</p>
<h3>Privacy</h3>
<p>Images are optimized on your own server. The free plugin does not transmit media files externally for optimization.</p>
<h3>License & Assets</h3>
<p>Shrinkwell is licensed under GPLv2 or later.</p>
<p>The included Shrinkwell logo and wordmark are original Levmedia brand assets and are distributed with this plugin under GPLv2 or later.</p>


Shrinkwell Image Optimizer

Optimize images with WebP and AVIF, then review possibly unused media safely.

Winsite Image Optimizer vs Shrinkwell Image Optimizer