Freemius

Md Nishath Khandakar

Nish Image Optimizer is a fast and simple WordPress plugin designed to make your website lighter and faster. 
It automatically compresses and converts your images into modern formats like WebP and AVIF, while also supporting JPEG and PNG.
By optimizing images directly inside WordPress, you can dramatically improve page speed, Core Web Vitals, and SEO rankings — without relying on third-party APIs or external services. Nish Image Optimizer runs 100% locally on your server using WordPress’ built-in image libraries (GD/Imagick).
<h3>🚀 Key Features</h3>
<ul>
<li>✅ Automatic Optimization on Upload – new images are optimized instantly. </li>
<li>✅ Bulk Optimization – optimize your entire Media Library with a single click. </li>
<li>✅ Multiple Formats – WebP, AVIF, JPEG, PNG. </li>
<li>✅ Skip Already Optimized Images – saves time and resources. </li>
<li>✅ Minimum File Size Skip – ignore small icons or logos. </li>
<li>✅ Fallback Detection – if AVIF/WebP isn’t supported, it falls back to JPEG/PNG automatically. </li>
<li>✅ WP-CLI Support – for developers who want command-line optimization. </li>
<li>✅ Lightweight & Fast – no external API calls, no credits, no monthly limits. </li>
<li>🔑 Pro Features – per-image re-optimization, advanced PNG → WebP/AVIF handling, and more.</li>
</ul>
<h3>🔑 Why Choose Nish Image Optimizer?</h3>
<ul>
<li>100% free to start with essential optimization features. </li>
<li>Pro upgrade unlocks advanced image handling for power users. </li>
<li>Built for speed, simplicity, and WordPress performance best practices. </li>
</ul>

Nish Image Optimizer

Lightweight WordPress image optimizer. Compress JPEG, PNG, WebP, and AVIF automatically for faster websites.

netgold.pl

Netgold AVIF Converter by NETGOLD is a lightweight, strictly non-invasive tool designed to skyrocket your WordPress website performance by serving next-generation AVIF images.
AVIF provides superior compression compared to WebP and traditional JPEG/PNG formats, significantly improving your Google PageSpeed Insights score and Core Web Vitals without losing visual quality.
<h3>🚀 Key Features</h3>
<ul>
<li>Strictly Non-Invasive: We never alter your database or HTML structure. The plugin dynamically serves AVIF files to compatible browsers using intelligent <code>.htaccess</code> rewrite rules. The original file URLs (like <code>.jpg</code> or <code>.png</code>) remain untouched in your source code.</li>
<li>Smart Bulk Conversion Tool: Convert your entire media library with a single click. Our CPU-safe, batch-processing algorithm ensures your server never times out or crashes, even on shared hosting environments.</li>
<li>Live Log Console: Real-time reporting of the conversion process! Watch exactly which files are being processed and see the precise savings for every single image.</li>
<li>Granular Exclusions: Need to keep a specific image in its original format? Use our native Media Library picker to exclude individual files from optimization with one click.</li>
<li>Anti-RAM Shield: Built-in protection that automatically detects and skips extremely large images (over 16Mpx) to prevent server memory exhaustion and crashes.</li>
<li>Intelligent Resume: Process got interrupted? No problem. The Bulk Converter automatically remembers where it left off and resumes seamlessly.</li>
<li>Broad Directory Support: Not just for the Media Library! You can choose to convert images located in <code>/uploads</code>, <code>/themes</code>, and <code>/plugins</code> directories.</li>
<li>Visual Dashboard: Track your optimization progress with a clean, modern UI featuring a real-time progress circle and a live “Total Disk Space Saved” calculator.</li>
<li>Safe Revert: Deactivating the plugin instantly removes the <code>.htaccess</code> rules, immediately reverting your site to serving the original images. No lock-in!</li>
</ul>
<h3>💡 Why AVIF?</h3>
AVIF is currently the most efficient image format on the web, supported by all modern browsers (Chrome, Safari, Firefox, Edge). It offers file sizes up to 50% smaller than WebP and 70% smaller than standard JPEGs.
<h3>🇵🇱 Polish Language Support</h3>
The plugin includes built-in <code>.po</code>/<code>.mo</code> files for the Polish language. If your WordPress is set to Polish, the plugin dashboard will automatically translate itself – no extra downloads required!

Netgold AVIF Converter

Non-invasive JPG/PNG to AVIF image converter with Bulk Conversion, Space Saved tracking, and a beautiful visual UI.

Nish Image Optimizer vs Netgold AVIF Converter