saguya

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

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.

FluxPress

Uzair

Easy Optimizer is a free, all-in-one WordPress speed optimization plugin that can take the place of the 3–5 separate speed plugins most sites run today. One cache plugin. One dashboard. No premium upsells for core features. Prefer to keep your current cache plugin? You can also turn off the modules that overlap and use just the tools you want (see the FAQ).
Every toggle maps to a specific Google Lighthouse recommendation — enable it, save, and your Core Web Vitals (LCP, CLS, INP) improve immediately. Features you don’t enable never touch your page load.
<h4>Core Features</h4>
<ul>
<li>Full Page Caching: Achieve sub-millisecond TTFB with static HTML generation and separate mobile/desktop caches. Includes automatic sitemap-based preloading.</li>
<li>Remove Unused CSS: Automatically strips unnecessary styles, generating a slim, per-page-type stylesheet to eliminate render-blocking resources.</li>
<li>Delay & Defer JavaScript: Improve INP and reduce total blocking time by delaying script execution until user interaction, or deferring them natively.</li>
<li>Smart Lazy Loading: Defers offscreen images, iframes, videos, and background images. Automatically adds missing width/height attributes to fix layout shifts.</li>
<li>Automatic LCP Preload: Detects and preloads your Largest Contentful Paint image dynamically for instant visual loading.</li>
<li>Prefetch Pages: Pre-fetches links as users hover over them, making your site feel like an instant single-page application.</li>
<li>Font Optimization: Injects font-display: swap automatically to ensure text remains visible during webfont loads.</li>
<li>Bloat Removal: 15 one-click toggles to safely remove unused WordPress core scripts and features.</li>
<li>Database Cleanup & Optimization: Schedule automatic cleanups of revisions, auto-drafts, trashed posts, spam, and transients — each with a pre-cleanup snapshot so you can restore safely. The built-in Autoload Health auditor finds the heaviest options loaded on every page and lets you switch off the ones you don’t need, directly resolving the WordPress Site Health warning “Autoloaded options could affect performance.”</li>
<li>Heartbeat & Cron Manager: Take control of server resources by limiting WordPress Heartbeat frequency and throttling WP-Cron execution directly from the dashboard (no <code>wp-config.php</code> edits required). View, run, or delete scheduled cron events.</li>
<li>Cloudflare Integration: Automatically purge your Cloudflare edge cache (tag-based or full zone) whenever the page cache clears. Test your API connection instantly without saving credentials first.</li>
<li>Hosting Integrations: Auto-detects your environment to automatically purge server-level cache on managed hosts including Kinsta, WP Engine, SiteGround, Cloudways, GridPane, RunCloud, SpinupWP, Rocket.net, and WordPress.com.</li>
<li>Accessibility & SEO Fixes: Automatically resolves common Lighthouse accessibility warnings in real-time, such as missing form labels, ARIA tags, and un-crawlable links.</li>
<li>PageSpeed Speed Test: Run a Google PageSpeed test right from your dashboard and see your score with and without Easy Optimizer, side by side, for both mobile and desktop. Includes Core Web Vitals (LCP, CLS, INP). Works out of the box with no setup, or add your own free Google API key for unlimited tests.</li>
<li>Backend Analyzer: Find what slows your site down behind the scenes. Profile any page (or your admin area) on demand to see which plugins, themes, and database queries take the most time. Basically, find slow plugins and themes. Nothing runs on your real visitors, so there is no added overhead.</li>
</ul>
<h4>PageSpeed Insights & Lighthouse Recommendations Addressed</h4>
<ul>
<li>Eliminate render-blocking resources</li>
<li>Reduce unused CSS</li>
<li>Reduce unused JavaScript</li>
<li>Minimize main-thread work</li>
<li>Defer offscreen images</li>
<li>Serve images in next-gen formats</li>
<li>Properly size images</li>
<li>Image elements do not have explicit width and height</li>
<li>Preload Largest Contentful Paint image</li>
<li>Ensure text remains visible during webfont load</li>
<li>Serve static assets with an efficient cache policy</li>
<li>Enable text compression</li>
<li>Form elements do not have associated labels</li>
<li>Links do not have a discernible name</li>
<li>Buttons do not have an accessible name</li>
<li>[user-scalable=”no”] in viewport or [maximum-scale] < 5 .</li>
<li>Frame or iframe elements do not have a title — accessibility fix</li>
<li>ARIA progressbar elements do not have accessible names.</li>
<li>Some elements have a [tabindex] value greater than 0.</li>
<li>Links are not crawlable.</li>
<li>Image elements do not have [alt] attributes.</li>
</ul>
<h4>Works With Your Setup</h4>
<ul>
<li>WordPress & PHP: WP 6.4+ and PHP 7.4+</li>
<li>Web Servers: Apache, Nginx, LiteSpeed, OpenLiteSpeed</li>
<li>WooCommerce: Fully compatible. Cart, checkout, and my-account pages are automatically excluded from caching and optimization to protect the purchase flow.</li>
<li>Page Builders: Elementor, Beaver Builder, Divi, Gutenberg, Bricks, Oxygen, Breakdance.</li>
</ul>
<h3>External Services</h3>
Easy Optimizer can connect to the external services below. Each is optional and used only for the feature noted.
<ul>
<li>ShortPixel CDN — when Image CDN is on, your image URLs are rewritten to ShortPixel for WebP/AVIF delivery. Only image URLs are sent. <a href="https://shortpixel.com/tos" rel="nofollow ugc">Terms</a> · <a href="https://shortpixel.com/privacy" rel="nofollow ugc">Privacy</a></li>
<li>Cloudflare API — when Cloudflare is connected, your edge cache is purged (by URL or full zone) as the page cache clears. Only the URLs to purge and your zone ID are sent. <a href="https://www.cloudflare.com/website-terms/" rel="nofollow ugc">Terms</a> · <a href="https://www.cloudflare.com/privacypolicy/" rel="nofollow ugc">Privacy</a></li>
<li>Google PageSpeed Insights — when you run a speed test with your own API key, your site’s public home URL is sent to Google. <a href="https://developers.google.com/terms" rel="nofollow ugc">Terms</a> · <a href="https://policies.google.com/privacy" rel="nofollow ugc">Privacy</a></li>
<li>FluxPress PageSpeed proxy — the default speed-test path; your site registers once, then its public home URL is tested via Google so no API key is needed. <a href="https://fluxpress.io/privacy" rel="nofollow ugc">Terms & Privacy</a></li>
<li><a href="https://fluxpress.io/" rel="nofollow ugc">FluxPress</a> usage analytics — opt-in, off by default; sends anonymous data (plugin/WordPress/PHP versions, theme, locale, host, multisite/WooCommerce flags, site URL). No email, IP, or content. <a href="https://fluxpress.io/privacy" rel="nofollow ugc">Terms & Privacy</a></li>
</ul>
<h3>Privacy</h3>
Easy Optimizer’s usage analytics are opt-in and disabled by default. When enabled, it sends the data listed under External Services over an encrypted connection. It never collects your email address, IP address, user data, or site content.

Easy Optimizer – Speed, Cache, Unused CSS, Delay JS, Lazy Load, LCP & Core Web Vitals

All-in-one speed optimizer: page cache, unused CSS removal, delay JS, lazy load, preload LCP, accessibility & SEO fixes. Boost Core Web Vitals free.

Henkan – WebP & AVIF Converter vs Easy Optimizer – Speed, Cache, Unused CSS, Delay JS, Lazy Load, LCP & Core Web Vitals