Freemius

Harv

Harvify Image Optimizer helps WordPress administrators convert Media Library images to modern WebP and AVIF formats without running heavy compression work inside PHP.
The plugin scans lightweight attachment metadata first, then your browser converts selected images in a small queue. Images are processed with Web Workers and OffscreenCanvas where available, uploaded back through authenticated WordPress REST API requests, and released from browser memory as each item finishes.
This client-side approach is designed for shared hosting environments where PHP memory limits and execution timeouts can interrupt large image optimization jobs.
<h4>Key features</h4>
<ul>
<li>Convert JPEG, PNG, WebP, and AVIF source images to WebP or AVIF.</li>
<li>Scan one source format at a time so existing target-format images are not accidentally reprocessed.</li>
<li>Select a few images for a test run before processing the full queue.</li>
<li>Skip small files, very large images, selected upload paths, or filename patterns.</li>
<li>Deliver Pro sidecar variants through PHP picture tags when available.</li>
<li>Adjust quality and queue concurrency from the admin screen.</li>
<li>Save queue state in the browser with IndexedDB so work can resume after interruption.</li>
<li>Keep wp-admin responsive by doing conversion work in browser workers.</li>
<li>Process images locally in your browser without using an external optimization API.</li>
<li>Optional original-file deletion, disabled by default.</li>
</ul>
<h4>Privacy and external services</h4>
Harvify Image Optimizer does not send images to a third-party compression service, load scripts from external CDNs, or track usage. Images are fetched by your browser from your own WordPress site and uploaded back to your own WordPress REST API.
AVIF encoding uses bundled WebAssembly encoder files. The current AVIF path uses the Apache-2.0 licensed @jsquash/avif single-thread encoder, with the earlier bundled wasm-avif encoder retained as a local fallback.
<h4>Format testing</h4>
If you want to experiment with AVIF conversion outside your WordPress Media Library first, you can use this browser-based test tool:
<a href="https://conversores.online/en/avif-to-png-converter/" rel="nofollow ugc">AVIF to PNG Converter</a>

Harvify Image Optimizer for WebP and AVIF

Convert Media Library images to WebP or AVIF locally in your browser.

ThemeDot

Sadat Himel

Image Format Converter is a powerful, lightweight administrative tool that allows you to easily convert images in your WordPress Media Library to modern formats like WebP and AVIF, as well as standard PNG and JPG formats.
By leveraging your server’s native PHP image processing libraries (GD or Imagick), this plugin converts images with high quality and optimal compression. With the newly added AJAX-powered engine, you can now select and convert multiple images at once, watch their progress in real-time with an animated progress bar, and see exactly how many kilobytes and storage percentage you saved.
Features: 
* AJAX Bulk Conversion: Select multiple images from the Media Library and convert them sequentially. Prevents script timeouts on large libraries. 
* Proportional Resizing: Set optional maximum width or height constraints to scale down high-resolution images during conversion. 
* Media Library Row Action: Convert images directly from the Media Library list view (<code>upload.php</code>) with a quick “Convert Format” link. 
* Size Savings Calculator: Shows original size, converted size, and total storage savings in real-time. 
* Metadata Control (EXIF Stripping): Clean up extra file space by stripping camera EXIF profiles and color data when using Imagick. 
* Auto-Delete Original: Clean up your server automatically by deleting the original image file and database attachment after a successful conversion. 
* Flexible settings: Configure JPEG quality, PNG compression levels, WebP/AVIF quality, and toggle Media Library registration. 
* Server Diagnostics: View library status (GD, Imagick, WebP, AVIF) at a glance, with step-by-step instructions to enable missing libraries.
Access all features by going to Media > Image Converter.
<h3>Support the Developer</h3>
Enjoying CopyBlocker Pro? Support development by buying the author a coffee: 
☕ <a href="https://buymeacoffee.com/5adat" rel="nofollow ugc">Buy Me a Coffee</a>

Image Format Converter

Convert images between JPG, PNG, WebP, and AVIF in the WordPress admin with a modern, AJAX-powered UI. Built-in support for bulk conversions, image re …

Harvify Image Optimizer for WebP and AVIF vs Image Format Converter