Erdinc Bulat

Erdo Image Optimizer is a complete Image SEO & Performance Suite for WordPress. Convert images to WebP/AVIF, bulk-fix alt text, sanitize filenames, enable lazy loading, clean up unused media, and run a 6-point SEO audit — all from a single, modern dashboard.
Most image optimization plugins stop at compression. Erdo goes further: every image in your media library receives a professional SEO health score (out of 6 points). You will know exactly which images are hurting your Google rankings and how to fix them, in bulk, in minutes.
<h4>Why Erdo Image Optimizer?</h4>
<ul>
<li>Image SEO Audit (6 Points): Every image gets a score from 0 to 6 based on alt text, filename quality, title, contextual relevance, dimensions, and format. Fix failing criteria with one click — no guesswork.</li>
<li>WebP & AVIF Converter: One-click conversion from JPEG, PNG, GIF, and HEIC/HEIF to WebP or AVIF. Smart Quality mode automatically finds the smallest file size that still looks great.</li>
<li>Bulk Alt Text Generation: Automatically generate descriptive alt text from filenames for every image missing it. Fix hundreds of images in seconds — critical for accessibility and image SEO.</li>
<li>Filename Sanitizer: Transforms messy uploads like <code>IMG_1234 (copy).JPG</code> into SEO-friendly <code>professional-web-design.webp</code> at upload time. Bulk-rename existing images with automatic database reference updates.</li>
<li>Unused Media Cleanup: Scans your entire library to find images that appear nowhere on your site. Free up disk space and stop confusing search crawlers with orphaned files.</li>
<li>Lazy Loading & WebP Serving: Inject <code>loading="lazy"</code> into content images automatically. Serve WebP to compatible browsers via <code>.htaccess</code> rewrite (Apache) or PHP <code><picture></code> fallback (all servers).</li>
<li>Background Queue & WP-CLI: Bulk-convert thousands of images via WP-Cron — close the browser tab and let it run. Full CLI support: <code>wp erdo convert</code>, <code>audit</code>, <code>restore</code>, <code>stats</code>, <code>clean-cache</code>.</li>
<li>BunnyCDN & REST API: Upload converted images directly to BunnyCDN storage. Headless access via <code>/wp-json/erdo/v1/stats</code> and <code>/wp-json/erdo/v1/audit</code> REST endpoints.</li>
</ul>
<h4>Full Feature List</h4>
Compression & Conversion
<ul>
<li>One-click WebP and AVIF conversion with original backup and one-click restore</li>
<li>HEIC/HEIF (iPhone photos) conversion to WebP/AVIF via Imagick</li>
<li>Smart Quality mode — automatically finds the smallest file size that still looks great</li>
<li>Lossless mode for zero-quality-loss compression</li>
<li>Max Upload Width — automatically resize oversized images before conversion</li>
<li>EXIF metadata stripper — reduce file weight and protect photographer privacy</li>
<li>GIF, JPEG, PNG, HEIC → WebP/AVIF in one click</li>
</ul>
Image SEO & Alt Text
<ul>
<li>Image SEO Auditor with 6-point health score for every image in your library</li>
<li>Bulk Alt Text — generate alt text from filenames for all images missing it</li>
<li>Automatic filename sanitization on upload (removes spaces, special chars, uppercase)</li>
<li>Bulk rename all existing filenames with automatic database reference update</li>
<li>SEO Audit CSV export — download a full spreadsheet for reporting</li>
<li>Missing Alt Text filter — focus the dashboard on images that need fixing</li>
</ul>
Performance & Delivery
<ul>
<li>Lazy loading (<code>loading="lazy"</code>) injected into content, thumbnails, and gallery images</li>
<li>WebP serving via <code>.htaccess</code> rewrite (Apache) or PHP <code><picture></code> element rewriter</li>
<li>BunnyCDN integration — upload converted images directly to CDN storage</li>
<li>Background Queue — bulk convert via WP-Cron, browser tab can be closed</li>
</ul>
Developer & Dashboard
<ul>
<li>REST API: <code>/wp-json/erdo/v1/stats</code> and <code>/wp-json/erdo/v1/audit</code> endpoints</li>
<li>WP-CLI commands: <code>wp erdo convert</code>, <code>audit</code>, <code>restore</code>, <code>stats</code>, <code>clean-cache</code></li>
<li>Dashboard widget — key stats visible from wp-admin home</li>
<li>Before/After comparison slider — drag to compare original vs optimized</li>
<li>Right-click context menu on every image card</li>
<li>Grid size selector (Small / Medium / Large) with localStorage persistence</li>
<li>SVG upload support with automatic XSS sanitization for administrators</li>
<li>Multisite / network admin support</li>
<li>Modern, clean dashboard with format badge and SEO score on every card</li>
</ul>

Erdo Image Optimizer: Compress & Convert to WebP/AVIF (SEO Audit, Alt Text, Lazy Load)


Expected another "compress and done" plugin and got a complete image SEO toolkit instead. The standout for me is the 6-point audit score on every image. It tells you exactly which ones have weak alt text, bad filenames or the wrong format, and you fix them in bulk instead of one at a time. The WebP/AVIF conversion handles HEIC from iPhone photos too, and it keeps your originals with one-click restore, so there's basically no risk in trying it.



What sold me as a developer was the depth under the hood. Full WP-CLI support (wp erdo convert/audit/restore), real REST endpoints, a background queue so big libraries keep converting after you close the tab, and clean i18n. That's an unusual amount of care for a free plugin, and it's clearly built to WordPress standards, proper nonces, capability checks and escaping throughout.



Runs smoothly, does what it promises, and no upsell nagging. Highly recommended, and I'm looking forward to where this one goes.


More than a compressor a real image SEO suite


Not just another compressor - the 6-point SEO audit on every image and bulk alt text generation alone save hours of work. WebP/AVIF conversion with automatic original backup makes experimenting risk-free, and the WP-CLI commands and REST API endpoints show this was built by a developer for developers. Highly recommended.


Finally an image plugin that takes SEO seriously

Compress & convert images to WebP/AVIF. SEO-audit every image, bulk-fix alt text, filenames & unused media. Lazy loading & BunnyCDN.

Imagify Image Optimizer

WP Rocket

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.
<h3>🏆 The Easiest Image Optimization Plugin For WordPress</h3>
<a href="https://imagify.io/" rel="nofollow ugc">Imagify</a> is the simplest image optimization plugin for WordPress to optimize images, so your website loads faster and images stay lighter. It’s designed for site owners who want quick and effective results with a very easy setup.
With Imagify, you can resize and compress images and convert them to WebP and AVIF directly from your WordPress dashboard, with up to 20MB of images optimized each month for free. Image optimization takes just one click and does not require technical knowledge.
Whether you are uploading new images or optimizing an existing media library, Imagify makes image optimization simple, reliable, and easy to manage.
What sets Imagify apart:
<ul>
<li>
WebP and AVIF conversion included in the free plan, so you can use next-gen image formats right away.
</li>
<li>
Easy to use, with no advanced configuration to learn.
</li>
<li>
Smart image compression that does the job for you and reduces file size while preserving image quality.
</li>
<li>
Bulk image optimization that runs in the background.
</li>
</ul>
Watch the video and see for yourself why Imagify is the easiest image optimizer to make your images lighter and save time:
<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>
<h3>✨ Optimize Images with Imagify – Features at glance:</h3>
<ul>
<li>
Smart Compression (Does the job for you) – Automatically balances image quality and performance. You don’t need to tweak settings. Imagify optimizes every image for the best compression rate while preserving visual quality, so you save time and get consistent results without having to choose any settings.
</li>
<li>
Lossless Compression (Optional) – Prefer pixel-perfect quality? Choose lossless compression. This option is ideal for photographers and quality-focused websites.
</li>
<li>
Next-Gen Formats: WebP and AVIF (In one click) – Convert your images to WebP for wide compatibility or AVIF for superior compression in one click. This helps improve your Google PageSpeed performance score and Core Web Vitals grades.
</li>
<li>
Resize Large Images Automatically – Resize oversized images to a maximum width of up to 2560 pixels on upload or during optimization. This can reduce file size by up to 80 percent while keeping images optimized on all devices.
</li>
<li>
Asynchronous Bulk Optimization – Optimize your entire Media Library in the background without slowing down your site. Bulk optimization runs asynchronously, so you can keep working while Imagify handles the image optimization process for you.
</li>
<li>
On-the-Fly Image Resizing – Resize images directly from the app or within WordPress. This makes it easy to optimize images at the ideal size right away.
</li>
<li>
Original Image Backup – Keep your original images stored in a separate folder before the optimization process. This makes it easy to restore them at any time.
</li>
<li>
Flexible File and Size Optimization – Choose which WordPress image sizes you want to optimize, including thumbnail, medium, large, 1536 px, and 2048 px. This helps you optimize only what you actually use and manage your monthly quota more efficiently.
</li>
<li>
Auto-Optimize on Upload – New images are optimized automatically as soon as you upload them to WordPress. No manual steps and no forgotten images.
</li>
</ul>
✨ In short, you have everything you need to optimize images at scale while keeping quality high and your setup simple.
<h3>💡 Why optimize images with Imagify?</h3>
Imagify is an image optimizer built by the same team behind WP Rocket and focuses on delivering the best performance while saving you time, whether you are new to image optimization or managing a large number of images across multiple websites.
Imagify helps you optimize images, convert them to WebP and AVIF, and easily improve performance, including PageSpeed scores and Core Web Vitals. You’ll make your images load quicker without spending time adjusting settings.
<h3>📸 Optimize and compress images easily</h3>
Imagify helps you optimize images by reducing their file size without losing image quality. Your pages load faster, without changing how your images look to your visitors.
You can compress and resize images as they are uploaded, or optimize existing images in your media library. Imagify supports common image formats, including PDFs.
If images are too large, you can set a maximum width. Oversized images are automatically resized during optimization, proportionally and without cropping.
The part you’ll love the most: Imagify uses Smart Compression to automatically choose the best balance between image quality and file size, so you get lighter images without visible quality loss or having to tweak settings yourself.
<h3>⚙️ Enjoy image Optimization in the background</h3>
If you have many images, bulk optimization lets you optimize them all at once. The process runs in the background, so you can keep working while Imagify optimizes images for you. Original images are always preserved and can be restored at any time.
<h3>🔄 Convert images to WebP and AVIF</h3>
In addition to resizing and compressing, with Imagify you can convert images to WebP and AVIF without upgrading, as next-gen image conversion is included in all plans, including the free one.)
You can choose whether to generate WebP images, AVIF images, or both from the Imagify settings. Once enabled, Imagify creates next-gen versions of your images.
To serve these image formats on your site, you simply enable the option to display images in WebP and AVIF. Imagify then delivers the best format supported by each visitor’s browser.
Image fallback is handled automatically. If a browser does not support WebP or AVIF, the optimized JPG or PNG version is served instead, ensuring full compatibility.
Imagify supports next-gen conversion for all common image formats, including JPG, JPEG, PNG, and GIF.
For instance, you can convert GIF to WebP, JPEG and JPG to WebP, and even PNGto WebP. The same goes for AVIF: you can convert GIF to AVIF, JPEG and JPG to AVIF, PNG to AVIF.
<h3>⚡ Boost your PageSpeed Insights score and optimize Core Web Vitals</h3>
Heavy images are one of the most common reasons pages load slowly. When images are too large or not served in modern formats, they drag down performance and user experience.
Imagify helps you fix this at the source by compressing images and converting them to the next-gen formats mentioned above, so pages load faster and feel smoother to visitors. Such image optimization tasks help your site meet Google’s performance recommendations, fix PageSpeed Insights audits such as <a href="https://imagify.io/blog/serve-next-gen-formats-wordpress/" rel="nofollow ugc">“Serve images in next-gen formats”</a>” and “<a href="https://imagify.io/blog/efficiently-encode-images-wordpress/" rel="nofollow ugc">“Efficiently encode images”</a>, and improve key metrics like Core Web Vitals.
With lighter images across your site, you get faster load times and better performance where it matters most and, piece on the cake, without having to fine-tune performance settings yourself!
<h3>💬 What Do Our Users Think Of Imagify?</h3>
Here’s what our users have to say about us after optimizing their images with Imagify:
<blockquote>
“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>
”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>
“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>
“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>
“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>
</blockquote>
<h3>💰 Is Imagify Free?</h3>
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.
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>
<h3>💡 Want Image Optimization Tips?</h3>
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>
It’s packed with advice on image compression and so much more!
<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>
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.
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.
<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>
License: GPLv2 or later 
License URI: http://www.gnu.org/licenses/gpl-2.0.html

Imagify: Optimize Images for Top Speed (Compress & Convert to WebP/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.

Erdo Image Optimizer: Compress & Convert to WebP/AVIF (SEO Audit, Alt Text, Lazy Load) vs Imagify: Optimize Images for Top Speed (Compress & Convert to WebP/AVIF)