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.

Core Essentials

WebP Image Converter & Replacer converts your images (JPEG, PNG, static GIF) to WebP, replaces originals only when smaller, and updates database references so your site transparently serves <code>.webp</code>. No duplicate files. No front-end bloat. Just faster pages and less disk usage.
Why this plugin 
– No Duplicate Images: Converts and replaces originals when WebP is smaller, keeping <code>/uploads</code> lean. 
– Real Performance Gains: WebP typically reduces size ~25–35% at similar quality, aiding Core Web Vitals. 
– Safety First: Never deletes the original unless conversion succeeds and the WebP is smaller. 
– Full DB Integration: All generated sizes are converted; URLs in content/meta are updated to <code>.webp</code>. 
– On-Server Only: Uses PHP GD or Imagick. No external API, keys, or privacy concerns. 
– Lightweight: Runs only during conversion—nothing extra on the front end.
Free features 
– Convert individual images from Media → Library (list view). 
– Optimization Overview with counts: convertible, converted, remaining, skipped, failed, total space saved. 
– Smart memory handling to avoid PHP exhaustion on large images.
Premium features 
– Auto-convert on upload: New images become WebP automatically. 
– Bulk convert selected: Multi-select in Media Library (list view). 
– Bulk convert all: Library-wide conversion with progress + pause/resume.
<blockquote>
Whether you’re tight on storage or chasing better performance, this is a safe, effective way to modernize images.
</blockquote>
IMPORTANT: Because originals may be deleted, back up your <code>/wp-content/uploads/</code> and database before converting. Test on staging if possible.
<h3>How it works</h3>
<ol>
<li>Plugin checks server support (GD/Imagick with WebP).</li>
<li>You convert images (single/bulk/premium auto).</li>
<li>If the <code>.webp</code> is smaller, the original file is removed and all DB refs switch to <code>.webp</code>.</li>
<li>Your site now serves WebP transparently—no theme changes required.</li>
</ol>
<h3>Usage</h3>
Optimization Overview 
– Settings → Media → “WebP Image Converter & Replacer” 
– See totals converted/remaining/skipped/failed and space saved.
Convert individual images 
– Media → Library (list view) → Convert to WebP link under each item.
Premium 
– Auto-convert on upload: toggle under Settings → Media. 
– Bulk convert selected: select items in Media Library (list view) → bulk action Convert to WebP. 
– Bulk convert all: Start Bulk Optimization with progress + pause/resume.
After conversion 
– Verify pages serve <code>.webp</code> in browser dev tools. 
– Clear any caches/CDN.
<h3>Phoenix Media Rename Integration</h3>
We integrate with <a href="https://en-gb.wordpress.org/plugins/phoenix-media-rename/" rel="nofollow ugc">Phoenix Media Rename</a> to safely update all database references.
Why Phoenix? 
– Mature, reliable database URL updates across posts, custom fields, widgets, Customizer, etc. 
– Reduces risk vs. “DIY” find/replace logic used by other optimizers. 
– Lets this plugin focus on conversion while Phoenix handles DB updates.
Flow 
1. Convert to WebP. 
2. Phoenix updates URLs from <code>.jpg/.png/.gif</code> to <code>.webp</code>. 
3. Your site serves WebP with no broken links.

WebP Image Converter & Replacer – Convert to WebP, No Duplicates

Convert images to WebP and replace originals—no duplicates. Save storage and speed up your site. Auto-convert on upload & bulk tools (premium).

Erdo Image Optimizer: Compress & Convert to WebP/AVIF (SEO Audit, Alt Text, Lazy Load) vs WebP Image Converter & Replacer – Convert to WebP, No Duplicates