saguya

<p>Welcome to <strong>Henkan</strong> (Japanese for “conversion”) — your lightweight, high-performance solution for next-generation image optimization in WordPress!</p>
<p>Slow loading times and heavy images are a thing of the past. Henkan seamlessly integrates into your WordPress dashboard, silently converting your standard JPEGs and PNGs into highly optimized <strong>WebP</strong> or <strong>AVIF</strong> files. Boost your Core Web Vitals, improve your SEO rankings, and save massive amounts of server bandwidth without sacrificing an ounce of image quality.</p>
<h3>✨ Why choose Henkan?</h3>
<p>Most image optimizers rely on slow PHP processing or expensive cloud APIs with monthly limits. Henkan is built differently: It prioritizes <strong>native OS binaries</strong> (<code>cwebp</code>, <code>avifenc</code>) to process images blazingly fast directly on your own server, completely free and without any restrictions.</p>
<h3>🚀 Powerful Features</h3>
<ul>
<li><strong>Next-Gen Formats:</strong> Instantly convert images to WebP and AVIF formats.</li>
<li><strong>Zero-Config Auto-Conversion:</strong> New images are optimized silently in the background the moment you upload them.</li>
<li><strong>1-Click Bulk Optimization:</strong> Got a massive existing media library? Process thousands of images with a single click in our beautiful, modern dashboard.</li>
<li><strong>Smart Fallbacks:</strong> Uses ultra-fast <code>exec()</code> binaries when available, falling back to GD or ImageMagick seamlessly if needed.</li>
<li><strong>Cache Auto-Clear:</strong> Fully compatible with WP Rocket, W3 Total Cache, Autoptimize, and LiteSpeed Cache. Conversions automatically trigger a cache purge.</li>
<li><strong>Frontend Delivery:</strong> Automatically serves the optimized images to compatible browsers using modern HTML <code><picture></code> tags or Nginx/Apache rewrites.</li>
<li><strong>WP-CLI Power:</strong> Built-in commands (<code>wp henkan convert</code>) for sysadmins to process massive libraries directly from the terminal without PHP timeouts.</li>
<li><strong>Global Ready:</strong> 100% translation-ready. Shipped with English, German (<code>de_DE</code>), and Japanese (<code>ja</code>) out of the box.</li>
</ul>
<h3>🛠️ System Requirements</h3>
<p>To unleash the full speed of Henkan, we recommend:<br />
* <strong>WordPress:</strong> 6.0 or higher<br />
* <strong>PHP:</strong> 7.4 or higher<br />
* <strong>For WebP:</strong> <code>cwebp</code> installed on the server (recommended) OR PHP <code>GD</code> extension with WebP support.<br />
* <strong>For AVIF:</strong> <code>avifenc</code> or <code>ImageMagick</code> (magick/convert) installed OR PHP <code>GD</code> extension with AVIF support.</p>


Henkan – WebP & AVIF Converter

Henkan is a high-performance plugin that automatically converts your media library images to next-generation formats like WebP and AVIF.

Nitin Singh

<p><strong>Image Ninja – Convert Images to WebP & AVIF on Upload</strong> is a lightweight WordPress plugin that automatically converts JPEG and PNG images to modern WebP and AVIF formats upon upload. The plugin improves website performance by optimizing image file sizes without compromising quality, leading to faster page loading times.</p>
<h3>Key Features</h3>
<ul>
<li>Automatically converts JPEG and PNG images to WebP and AVIF formats during upload.</li>
<li>Allows configuration of WebP and AVIF image quality in the settings.</li>
<li>Enhances website performance by reducing image file sizes.</li>
<li>Simple settings interface under <code>Settings > Media</code> for easy customization.</li>
<li>Lightweight and developer-friendly codebase.</li>
</ul>
<p>This plugin is ideal for website owners looking to improve load times and optimize image delivery, especially on mobile devices and slow connections.</p>
<h3>Why WebP?</h3>
<p>WebP is a modern image format developed by Google that provides both lossy and lossless compression for images on the web. Here are some benefits of using WebP:</p>
<ul>
<li><strong>Smaller File Size</strong>: WebP images can be up to 30% smaller than JPEGs and PNGs with no noticeable loss in quality, resulting in faster page load times.</li>
<li><strong>Transparency and Animation</strong>: WebP supports transparent backgrounds like PNG and animated images like GIF, making it a versatile choice.</li>
<li><strong>Improved Compression</strong>: WebP offers better compression algorithms compared to traditional formats, allowing for high-quality images with lower storage requirements.</li>
</ul>
<h3>Why AVIF?</h3>
<p>AVIF (AV1 Image File Format) is a cutting-edge image format derived from the AV1 video codec, offering even better compression than WebP. Here’s why AVIF is beneficial:</p>
<ul>
<li><strong>High Compression Efficiency</strong>: AVIF can reduce image sizes by up to 50% compared to JPEG, while maintaining similar or even higher visual quality.</li>
<li><strong>HDR Support</strong>: AVIF supports High Dynamic Range (HDR), allowing for more vibrant and detailed images, especially on modern displays.</li>
<li><strong>Advanced Features</strong>: It includes support for transparency, animation, and a wider color gamut, making it suitable for various types of web content.</li>
</ul>
<h3>License</h3>
<p>This plugin is licensed under the GPLv2 or later license.</p>


Image Ninja – Convert Images to WebP & AVIF on Upload

Automatically convert JPEG and PNG images to WebP and AVIF formats during upload to optimize your WordPress site’s performance.

Henkan – WebP & AVIF Converter vs Image Ninja – Convert Images to WebP & AVIF on Upload