CaphLabs

<p>Keep Originals Safe, convert JPEG/PNG images to WebP and makes WebP the canonical file. WP returns <code>.webp</code> URLs, Keeping originals safely archived.</p>
<h3>How it works (high level)</h3>
<ol>
<li>
<p><strong>Convert</strong></p>
<ul>
<li>For a JPG/PNG attachment, the plugin generates a WebP for the full image and all WordPress-generated sizes.</li>
<li>Conversion is done through WordPress’ image editor system (<strong>WP_Image_Editor</strong>), meaning it uses <strong>GD</strong> or <strong>Imagick</strong> (whichever your server supports) with WebP support enabled.</li>
</ul>
</li>
<li>
<p><strong>Move originals</strong></p>
<ul>
<li>The original JPG/PNG files are moved to:
<ul>
<li><code>wp-content/uploads/_originals/...</code></li>
</ul>
</li>
<li>The folder structure mirrors your uploads structure.</li>
</ul>
</li>
<li>
<p><strong>Update WordPress to serve WebP</strong></p>
<ul>
<li>Attachment “file” + metadata are updated so WordPress serves <code>.webp</code> as the attachment file.</li>
<li>Attachment mime type is updated to <code>image/webp</code>.</li>
</ul>
</li>
<li>
<p><strong>Optional: Replace old URLs everywhere</strong></p>
<ul>
<li>If enabled, the plugin can replace old <code>.jpg/.png</code> URLs across:
<ul>
<li>post content</li>
<li>postmeta</li>
</ul>
</li>
<li>Replacement is <strong>serialized-safe</strong> (does not break serialized arrays).</li>
</ul>
</li>
</ol>
<h3>Background jobs (keeps running after page reload)</h3>
<p>Conversion/repair/sweep jobs are designed to run in the background. They keep ticking even if you refresh the page or close the tab.</p>
<p>The plugin uses multiple loopback methods (admin-post / REST / public tick fallback) so it can keep working even on restrictive hosting setups.</p>
<h3>Log + “it looks frozen” note</h3>
<p>A rolling “terminal style” log is written to:<br />
– <code>wp-content/uploads/hsbc-webp-only/logs/webp-only.log</code></p>
<p>If the log appears to freeze in the admin page:<br />
– click <strong>Refresh Log</strong>, or<br />
– refresh the page</p>
<p>The job may still be running server-side; refreshing the log/page usually catches up.</p>
<h3>Usage</h3>
<p>Go to <strong>Media <span aria-hidden="true" class="wp-exclude-emoji">→</span> WebP Only</strong>.</p>
<h3>Settings</h3>
<ul>
<li><strong>Quality</strong>
<ul>
<li>WebP quality for conversion (0–100).</li>
</ul>
</li>
<li><strong>Batch size</strong>
<ul>
<li>How many items to process per tick. Smaller batches reduce server load.</li>
</ul>
</li>
<li><strong>Replace old .jpg/.png URLs across content + postmeta (serialized-safe)</strong>
<ul>
<li>Recommended if your site content contains hard-coded image URLs.</li>
</ul>
</li>
<li><strong>Sweep Include / Exclude</strong>
<ul>
<li>Used by the Sweep tools to control which folders are scanned.</li>
</ul>
</li>
</ul>
<h3>Conversion Jobs (buttons)</h3>
<p><strong>Start Bulk Convert</strong><br />
– Converts Media Library attachments (JPG/PNG) in batches.<br />
– Moves originals to <code>uploads/_originals/</code>.<br />
– Updates attachment metadata so WordPress serves <code>.webp</code>.<br />
– Optional URL replacement (content + postmeta).</p>
<p><strong>Start Repair/Cleanup</strong><br />
– Repairs inconsistencies if something was partially converted or moved.<br />
– Useful after restores/migrations or if some attachments have mismatched metadata.<br />
– Optional URL replacement.</p>
<p><strong>Start Folder Sweep</strong><br />
– Scans the filesystem for eligible images (based on your Sweep Include/Exclude rules).<br />
– Designed for sites with additional image folders beyond standard uploads.<br />
– Optional URL replacement.</p>
<p><strong>Stop Job</strong><br />
– Stops the currently running job.</p>
<h3>Maintenance / Cleanup (buttons)</h3>
<p><strong>Delete duplicate _originals</strong><br />
– Deletes backup files in <code>uploads/_originals/</code> *only when* an identical file already exists in <code>uploads/</code>.<br />
– This is a cleanup tool for situations where originals were restored back into uploads and you no longer need the archived duplicate.</p>
<p><strong>Delete duplicate _webp</strong><br />
– Removes orphaned WebP cache files in:<br />
  – <code>uploads/_webp/</code><br />
– Only deletes WebP files that no longer match anything in <code>uploads/</code> or <code>uploads/_originals/</code>.</p>
<p><strong>Delete duplicate sweep _originals</strong><br />
– Maintenance cleanup for <strong>non-uploads</strong> roots (folders under <code>wp-content/</code>) that contain their own <code>_originals/</code> folders.<br />
– It uses your <strong>Sweep Include</strong> list to find those roots.<br />
– Only deletes a file from <code><root>/_originals/</code> when the same file exists at <code><root>/</code> AND the file size matches (safe duplicate).</p>
<p><strong>Revert Everything</strong><br />
– Restores original JPG/PNG files from <code>uploads/_originals/</code> back into <code>uploads/</code>.<br />
– Reverts attachment metadata so WordPress serves the originals again.</p>
<h3>Log controls</h3>
<p><strong>Refresh Log</strong><br />
– Pulls the latest log tail into the admin screen.</p>
<p><strong>Reset Log</strong><br />
– Clears the log file.</p>
<h3>Requirements</h3>
<ul>
<li>WordPress’ image editor must support WebP.
<ul>
<li><strong>GD</strong> with WebP support, or</li>
<li><strong>Imagick</strong> with WebP support</li>
</ul>
</li>
<li>If WebP conversion is not supported on your server, conversion/repair/sweep will refuse to run (revert tools can still work).</li>
</ul>


OrigiSafe — Advanced Image Optimizer (WebP) — Keep Originals Safe

Convert JPG/PNG uploads (and existing library) to WebP, move originals to /uploads/_originals/, and update Media Library metadata - WP serves .webp

Imagify Image Optimizer

WP Rocket

<p>Optimize images in 1‑click: compress, resize & convert to WebP/AVIF – free up to 20MB/month. Enjoy the easiest WordPress image optimizer to set up.</p>
<h3>🏆 The Best Image Optimization Plugin For WordPress</h3>
<p><a href="https://imagify.io/" rel="nofollow ugc">Imagify</a> is the most advanced image optimization plugin to help you optimize images. In fact, you can easily resize and compress images, and convert them to WebP and Avif. You can now use its power directly in WordPress to optimize images and reduce the weight of the photos you want to add to your site – image optimization is all done with just one click and without sacrificing their quality.</p>
<p>Imagify is the best WordPress image optimizer. Image optimization is simple and straightforward. The plugin lets you optimize images in one go with its asynchronous bulk optimization option. You can resize your images on the fly – they will be automatically optimized at the best compression level. If needed, you can always restore your images to their original versions.</p>
<p>On top of optimizing images, you’ll choose the best AVIF and WebP converter plugin for WordPress. Imagify also converts your images to WebP and AVIF, the next-gen formats for lighter images that will speed up your WordPress site, improve user experience, and even SEO. Convert WebP and convert AVIF will make a difference in image optimization, you’ll see that from yourself.</p>
<p>Lastly, it’s easy to use the best image compression plugin for better site performance. Speed up your WordPress site and improve Core Web Vitals thanks to Imagify’s state-of-the-art image optimization process.</p>
<p>Our video explains why Imagify is the easiest image optimization plugin and shows how it makes your website faster thanks to lighter images.</p>
<span class="embed-youtube" style="text-align:center; display: block;"><iframe loading="lazy" class="youtube-player" width="750" height="422" src="https://www.youtube.com/embed/qbqV5yEZ6Og?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en-US&autohide=2&wmode=transparent" allowfullscreen="true" style="border:0;" sandbox="allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox"></iframe></span>
<h3>✨ Optimize Images – The Imagify Image Optimizer Key Features:</h3>
<ul>
<li>Resize and compress images for the most common formats, including PDF</li>
<li>Optimize images with Smart Compression to balance image optimization quality and performance automatically</li>
<li>Automatic WebP conversion</li>
<li>AVIF conversion in one click</li>
<li>Async bulk optimization</li>
</ul>
<h3>📸 Optimize Images: Resize and Compress Images Without Losing Quality</h3>
<p>Imagify is a great image compressor and the ultimate solution to optimise images. You are able to resize and compress images from the most common image formats as well as PDF format. In case you have many images to optimize, you can also resize images in bulk thanks to our async bulk optimization option. In just one click, you will be able to compress multiple images super easily. Imagify compresses all your images in the background, so you can leave the page and not worry about anything.</p>
<p>Many of your high-quality images may be in sizes that are much too large. To reduce image size and compress large images, Imagify has a setting that allows you to choose a maximum width for all of your images, and if you upload images that are larger than that size, it will resize large images for you during optimization. Imagify will resize images proportionally without cropping them.</p>
<p>With such a great image optimizer like Imagify, you’ll get your images automatically optimized at the best compression level and quality – thanks to the Smart Compression Mode.</p>
<p>When using our image compression tool, Imagify, you will enjoy smaller file sizes and faster loading times. But the best part is that you will optimise images and reduce their weight without losing quality: why should you have to choose between beauty and speed? If you want to compress images, it’s now easier than ever with Imagify!</p>
<h3>🔄 Convert to WebP and AVIF Formats</h3>
<p>Thanks to Imagify, you can take a step further in your image optimization process. You can also convert all your images to next-gen image formats such as WebP and AVIF. WebP format, as well as the AVIF format, offers superior image compression and quality and is a way to optimise images and speed up their loading times on websites. By utilizing Imagify’s AVIF and WebP optimizer, you can efficiently convert images to these next-gen formats, saving you a precious amount of time.</p>
<p>With Imagify, WebP conversion and compression are indeed super easy. Wondering how the convert WebP option works? Imagify will automatically enable WebP and convert your images to WebP.</p>
<p>What about converting your images to AVIF? You can just select the AVIF option under the Optimization/Next-gen image format tab. Simply as that! Thanks to the best WebP and AVIF plugin for WordPress, you’ll be able to take advantage of the automatic convert WebP feature in no time, plus you’ll always have the convert AVIF option.</p>
<p>Imagify can also display the AVIF images directly on your front-end. But because some browser versions don’t support AVIF yet, Imagify lets you have both optimized versions of the original format images and the WebP versions ready. Imagify offers the automatic fallback. It means that it will serve the AVIF version if a visitor’s browser supports it and the WebP format if not (if you have previously converted the images to WebP).</p>
<p>WebP is definitively an excellent replacement for jpeg, png, and gif images, and the same goes for AVIF, which improves your image performance even further. Imagify offers WebP conversion for all image formats: you can convert gif to WebP, jpeg to WebP, and even png to WebP. You can also benefit from AVIF conversion and convert gif to AVIF, jpg and jpeg to AVIF, png to AVIF.<br />
Whatever your favorite image format, let Imagify optimise your images!</p>
<h3>⚡ Optimize Images to Make Your Site Faster and Improve Core Web Vitals</h3>
<p>Did you know that image optimization and web performance go hand in hand? In fact, when it comes to web page speed, one of the first things you should do is optimize your images. Large and heavy image sizes will indeed slow down your website and provide a bad user experience to your visitors – and that’s why you should compress images. On the contrary, when you optimise images and improve image loading speed, you should see a direct improvement in your website speed and performance. With Imagify, it’s time to say goodbye to images taking too long to load.</p>
<p>Images are one of the largest influencing factors in the Core Web Vitals. Image compression will ensure your images load faster and improve your overall website performance, including your Core Web Vitals metrics. If you’re looking to improve user experience and speed up your WordPress site, images are a good place to start.</p>
<p>Even Google tells you to take care of your images! If you have ever run a performance audit on PageSpeed Insights, you might have seen the <a href="https://imagify.io/blog/serve-next-gen-formats-wordpress/" rel="nofollow ugc">“serve images in next-gen formats”</a> opportunity popping up. Another PageSpeed Insights recommendation related to images is to <a href="https://imagify.io/blog/efficiently-encode-images-wordpress/" rel="nofollow ugc">“efficiently encode images”</a>. When you use Imagify, you will be able to address both recommendations and fix your images for a faster website.</p>
<h3>💬 What Do Our Users Think Of Imagify?</h3>
<p>Here’s what our users have to say about us after optimizing their images with Imagify:</p>
<blockquote>
<p>“Images and other media are the largest parts on your web pages (most likely). Therefore don’t forget to optimise images for the web before adding to your site. For WordPress there are many optimisation plugins available. My favourite is Imagify” — <a href="https://twitter.com/wpmark/status/1479128422395830273" rel="nofollow ugc">Mark Wilkinson</a></p>
<p>”To give your images a slimming treatment, without altering them aesthetically, there is a great plugin on WordPress: Imagify. Simple, efficient and functional, it’s really worth a look.”— <a href="https://twitter.com/wpmarmite_en/status/1383072818649255937" rel="nofollow ugc">WP Marmite</a></p>
<p>“Imagify is an awesome tool that is powerful & easy to use. It’s fast, rivals and surpasses other established plugins/software. Awesome!” — <a href="https://twitter.com/SRHDesign/status/663758140505235456" rel="nofollow ugc">Simon Harper</a></p>
<p>“If you want to “squeeze” your images as much as possible and “trim out” your website on the highest professional level… Imagify” — <a href="https://twitter.com/Free_LanceTools/status/685503950909476865" rel="nofollow ugc">Ivica Delic</a></p>
<p>“Clearly Imagify is the most awesome WordPress plugin to compress images on your website! A must try” — <a href="https://twitter.com/EricWaltR/status/679053496382038016" rel="nofollow ugc">Eric Walter</a></p>
</blockquote>
<h3>💰 Is Imagify Free?</h3>
<p>You can optimize for free 20MB of images (that’s about 200 images) every month. You can also convert to the next-gen WebP format for free.</p>
<p>Need to compress more images? Have a look at our plans: <a href="https://imagify.io/pricing" rel="nofollow ugc">https://imagify.io/pricing</a></p>
<h3>💡 Want Image Optimization Tips?</h3>
<p>If you want to optimize images and know more about using WebP images on WordPress, improving your PageSpeed score with Imagify, or compressing multiple images online, take a look at our blog: <a href="https://imagify.io/blog/" rel="nofollow ugc">https://imagify.io/blog/</a></p>
<p>It’s packed with advice on image compression and so much more!</p>
<ul>
<li><a href="https://imagify.io/blog/how-to-convert-images-to-webp/" rel="nofollow ugc">How to Convert Images to WebP on WordPress with Imagify</a></li>
<li><a href="https://imagify.io/blog/image-optimization-manual-for-wordpress/" rel="nofollow ugc">How to Optimize Images on WordPress for Performance and SEO</a></li>
<li><a href="https://imagify.io/blog/reduce-image-size-without-losing-quality/" rel="nofollow ugc">How to Reduce Image Size Without Losing Quality (and Save Space)</a></li>
<li><a href="https://imagify.io/blog/how-to-resize-compress-multiple-images-online/" rel="nofollow ugc">How to Resize and Compress Multiple Images Online (Easy Methods)</a></li>
<li><a href="https://imagify.io/blog/how-to-make-photos-load-faster-wordpress/" rel="nofollow ugc">How to Make Photos Load Faster on WordPress: 6 Key Tactics</a></li>
<li><a href="https://imagify.io/blog/optimize-images-page-speed-google/" rel="nofollow ugc">How to Optimize Images for Page Speed (and Google)</a></li>
</ul>
<h3>👥 Who Are We?</h3>
<p>We are <a href="https://wp-media.me/" rel="nofollow ugc">WP Media</a>, the company behind WP Rocket, the best caching plugin for WordPress.</p>
<p>Our mission is to improve the web, we are making it faster with <a href="https://wp-rocket.me/" rel="nofollow ugc">WP Rocket</a> and lighter with Imagify.</p>
<h3>✉️ Get In Touch!</h3>
<ul>
<li>Website: <a href="https://imagify.io" rel="nofollow ugc">Imagify.io</a></li>
<li>Contact Us: <a href="https://imagify.io/contact" rel="nofollow ugc">https://imagify.io/contact</a></li>
<li>Twitter: <a href="https://twitter.com/imagify" rel="nofollow ugc">https://twitter.com/imagify</a></li>
</ul>
<h3>🚀 Related Plugins</h3>
<ul>
<li><a href="https://wp-rocket.me/" rel="nofollow ugc">WP Rocket</a>: Best caching plugin to speed-up your WordPress website.</li>
<li><a href="https://wordpress.org/plugins/rocket-lazy-load/" rel="ugc">Lazy Load</a>: Best Lazy Load script to reduce the number of HTTP requests and improve the website’s loading time.</li>
</ul>
<p>License: GPLv2 or later<br />
License URI: http://www.gnu.org/licenses/gpl-2.0.html</p>


Imagify Image Optimization – Optimize Images | Compress Images | Convert WebP | Convert AVIF


I am using this for quite a sometime now and must say that it gives me back good scores in Google Page Speed and Lighthouse.


Excellent Image Optimizer

Should be improved


Good UI but functionality does not work.All the time if you press optimize it showing loading and loading and optimizing and optimizing but its never end.


Does not work!

Super good


This is a great tool with an excellent support.


Great tool


Highly reccomend this plugin! easy and gets the job done


Excellent plugin


It's our favorite plugin to optimize images, works good and solves the problem. 


Top plugin to optimize images

I use it on all my projects

Optimize images in 1‑click: compress, resize & convert to WebP/AVIF - free up to 20MB/month. Enjoy the easiest WordPress image optimizer to set up.

OrigiSafe — Advanced Image Optimizer (WebP) — Keep Originals Safe vs Imagify Image Optimization – Optimize Images | Compress Images | Convert WebP | Convert AVIF