Tempaloo

The pricing problem with most WebP plugins
WordPress generates 5-8 thumbnails for every image you upload (<code>thumbnail</code>, <code>medium</code>, <code>medium_large</code>, <code>large</code>, <code>full</code>, plus theme-specific sizes). Most popular optimizers count each thumbnail as a separate credit, so a single product photo or blog hero can burn through 6-8 credits before you’ve touched your second image.
Tempaloo charges 1 credit per upload, no matter how many sizes WordPress derives from it. Same quota, 6-8x more usable conversions.
Concrete comparison — 1,000 uploads / month
<ul>
<li>ShortPixel / Imagify (per-thumbnail billing): 6,000 to 8,000 credits consumed → you need a 10k or 20k plan.</li>
<li>Tempaloo (per-upload billing): 1,000 credits consumed → our 5,000-image Starter plan covers you 5x over.</li>
</ul>
If your site averages 4+ thumbnails per upload (which it does, by default), Tempaloo is the lowest cost-per-converted-image on the market.
Built for
<ul>
<li>Agencies managing 10–100 client sites tired of credit math and license-per-site upcharges (our Growth plan covers 5 sites; Business covers unlimited).</li>
<li>WooCommerce stores with 50+ photos per product who blow through ShortPixel quotas in days.</li>
<li>Photographers, portfolios, magazines who want AVIF + high quality without the Imagify Pro tier.</li>
</ul>
What’s in version 1.0
<ul>
<li>Async upload pipeline — conversion runs in a fresh PHP process via non-blocking loopback, so your uploads finish instantly and we never fight other plugins on the same WordPress filter chain (security scanners, page builders, other optimizers). Most optimizers convert sync inline; that’s where conflicts come from.</li>
<li>Bulk converter with adaptive backoff, pause/resume, and live progress (current image, savings counter, ETA).</li>
<li>Diagnostic + reconcile tab — drift detection across filesystem, attachment metadata, bulk state, and retry queue. One click to repair desynchronized state. Most optimizers leave this to the user; we audit it.</li>
<li>AVIF on every paid tier — not a Pro-only add-on. Starter (5€/mo) already includes it.</li>
<li>WP-CLI — <code>wp tempaloo status / activate / bulk / restore / quota</code>. First-class deploy story for managed WordPress hosts.</li>
<li>Picture-tag and URL-rewrite delivery modes — picture-tag works with Gutenberg, Elementor, Bricks, Divi, Beaver Builder, WooCommerce, and any theme. URL rewrite stays out of your markup. CDN passthrough also supported.</li>
<li>Compatibility hardening — atomic temp+rename writes, explicit <code>nocache_headers()</code> + <code>DONOTCACHEPAGE</code> so LiteSpeed Cache, WP Rocket, and W3 Total Cache never serve stale admin data.</li>
<li>Developer hooks — three filters/actions to skip attachments, override quality, and react after conversion. See “Developer hooks” below.</li>
</ul>
Pricing
<ul>
<li>Free plan: 250 images / month, 1 site, no credit card required.</li>
<li>Starter (5 €/mo): 5,000 images/month, AVIF included.</li>
<li>Growth (12 €/mo): 25,000 images/month, 5 sites per license.</li>
<li>Business (29 €/mo): 150,000 images/month, unlimited sites.</li>
<li>Unlimited (59 €/mo): fair-use 500k/mo, priority SLA.</li>
</ul>
Paid plans include a 7-day trial and a 30-day money-back guarantee. Credits roll over up to 30 days on paid plans.
Full details at <a href="https://tempaloo.com/webp" rel="nofollow ugc">https://tempaloo.com/webp</a>.
Trademarks
WebP and AVIF are open image formats developed by Google and the Alliance for Open Media respectively. Tempaloo is an independent product and is not affiliated with, endorsed by, or sponsored by Google or the Alliance for Open Media. ShortPixel, Imagify, EWWW, Smush, and Optimole are trademarks of their respective owners and are referenced for comparison purposes only.
<h3>External services</h3>
This plugin connects to the Tempaloo conversion API hosted at <code>https://api.tempaloo.com</code> to:
<ul>
<li>Verify your license key when you activate the plugin.</li>
<li>Convert images to WebP or AVIF — the plugin sends your image files (temporarily, not stored) along with your license key and site URL.</li>
<li>Fetch your current monthly quota.</li>
<li>Receive webhooks from Freemius (our payment processor) for subscription events.</li>
</ul>
What data is sent
<ul>
<li>Your license key (required for authentication).</li>
<li>Your site URL (for license-to-site binding).</li>
<li>The image bytes to be converted (streamed, never persisted on our servers — originals stay on your server).</li>
<li>Your WordPress and plugin version (for compatibility diagnostics).</li>
</ul>
Data retention
<ul>
<li>Image data is held in memory only during conversion, then discarded.</li>
<li>Usage logs (count of conversions, byte totals, duration) are stored for billing and analytics, associated with your license.</li>
<li>No personal data beyond what is needed to authenticate your license: your account email (collected at activation or via Google OAuth) and the URL of the WordPress site where the license is active. Both are necessary for license enforcement and are detailed in our privacy policy at https://tempaloo.com/privacy.</li>
</ul>
Providers
<ul>
<li>Conversion API: Tempaloo (hosted in Frankfurt, EU).
<ul>
<li><a href="https://tempaloo.com/terms" rel="nofollow ugc">Terms of Service</a></li>
<li><a href="https://tempaloo.com/privacy" rel="nofollow ugc">Privacy Policy</a></li>
</ul>
</li>
<li>Payment processing (paid plans only, triggered by clicking “Upgrade”): Freemius, Inc.
<ul>
<li><a href="https://freemius.com/privacy/" rel="nofollow ugc">Freemius Privacy Policy</a></li>
<li><a href="https://freemius.com/terms/" rel="nofollow ugc">Freemius Terms</a></li>
</ul>
</li>
</ul>
By activating this plugin and entering a license key, you agree to Tempaloo’s Terms and Privacy Policy.
<h3>Privacy</h3>
See the External services section above for a full disclosure of the data this plugin sends to the Tempaloo API.
<h3>Developer hooks</h3>
Three hooks let you tailor the plugin’s behavior from your own theme or custom plugin. They fire on both the auto-convert-on-upload path and the bulk path (CLI or admin), so a single rule applies everywhere.
<pre><code>apply_filters( 'tempaloo_webp_skip_attachment', false, $attachment_id, $mode )
</code></pre>
Return <code>true</code> to bypass conversion for a specific attachment. Useful to exclude a folder, a CPT, or images larger than a threshold.
<pre><code>apply_filters( 'tempaloo_webp_quality_for', $quality, $attachment_id, $format )
</code></pre>
Override the quality value (1–100) per attachment. Returned values are clamped to 1–100. Useful to lift quality on portfolio shots or drop it on product thumbnails.
<pre><code>do_action( 'tempaloo_webp_after_convert', $attachment_id, $info )
</code></pre>
Fired after a successful conversion (one or more sizes written). <code>$info</code> contains <code>format</code>, <code>converted</code>, <code>failed</code>, <code>mode</code>, <code>quality</code>, <code>sizes</code>. Useful for CDN purges, custom logging, webhooks, manifest rebuilds.
Example — skip conversion for any attachment in the <code>private/</code> upload subfolder:
<pre><code>add_filter( 'tempaloo_webp_skip_attachment', function( $skip, $id ) {
 $path = get_attached_file( $id );
 return $path && false !== strpos( $path, '/uploads/private/' );
}, 10, 2 );<h3>Source code</h3>
</code></pre>
Tempaloo WebP is open source under the GPLv2 (or later) license. All compiled assets are generated from human-readable sources included in this distribution — no obfuscated or auto-generated code without a matching source.
<h4>Compiled assets</h4>
The admin dashboard UI is built with Vite + React + TailwindCSS. The compiled output (<code>build/admin.js</code> and <code>build/admin.css</code>) is generated from the source files under <code>admin-app/</code>:
<ul>
<li>TypeScript / TSX source: <code>admin-app/src/</code></li>
<li>Build configuration: <code>admin-app/vite.config.ts</code>, <code>admin-app/tsconfig.json</code>, <code>admin-app/tailwind.config.js</code>, <code>admin-app/postcss.config.js</code></li>
<li>Dependency manifest: <code>admin-app/package.json</code> (and <code>admin-app/package-lock.json</code> for reproducible installs)</li>
</ul>
<h4>How to rebuild</h4>
From the plugin root:
<pre><code>cd admin-app
npm install
npm run build
</code></pre>
This regenerates <code>build/admin.js</code> and <code>build/admin.css</code>. Output is deterministic — same source plus same lock file produce the same bytes.
<pre><code>npm run typecheck runs the TypeScript compiler in `--noEmit` mode for a standalone type check.
</code></pre>
<h4>Third-party libraries</h4>
All third-party libraries are pulled in via npm (declared in <code>admin-app/package.json</code>) — none are vendored as pre-built minified files in this repository. Their licenses are MIT and compatible with GPLv2-or-later.
<ul>
<li>React 18 — https://react.dev (MIT)</li>
<li>React DOM 18 — https://react.dev (MIT)</li>
<li>clsx — https://github.com/lukeed/clsx (MIT)</li>
<li>@freemius/checkout — https://github.com/Freemius/checkout (MIT)</li>
<li>TailwindCSS — https://tailwindcss.com (MIT)</li>
<li>Vite — https://vitejs.dev (MIT)</li>
<li>PostCSS — https://postcss.org (MIT)</li>
<li>Autoprefixer — https://github.com/postcss/autoprefixer (MIT)</li>
</ul>

Tempaloo WebP

The image optimizer that doesn't charge you for thumbnails. 1 credit per upload, all sizes included — 6-8x more conversions for the same quota.

Giovanni Bevacqua

GioCompress is the lightweight yet powerful WordPress plugin designed to automatically optimize and convert your images into modern, web-friendly formats. It helps your website load faster without compromising visual quality, boosting your SEO scores and user experience.
GioCompress offers both a Free version with essential optimization features and a PRO version for advanced control and maximum performance.
<h3>🚀 Key Features (Free Version)</h3>
With GioCompress (Free version), your site gets an immediate boost in speed and better SEO:
<ul>
<li>Automatic Compression on Upload: Every image you upload is instantly optimized for the web.</li>
<li>Automatic WebP Conversion: Your images are automatically converted to the WebP format, ensuring superior performance and exceptional visual quality.</li>
<li>Optimization of Scaled Images: Even thumbnails and all various image sizes generated by WordPress are optimized.</li>
<li>Delete Original File: By default, we keep only the optimized version to maximize disk space savings on your server.</li>
<li>Optimize Existing Images (5/day): Already have a site full of images? Start optimizing your existing galleries right away, with a limit of 5 images per day.</li>
<li>Smart Lazy Loading (SEO): Your images load only when they are visible to the user, significantly improving page speed and SEO ranking. It works on all images on your site, wherever they are inserted.</li>
<li>Generate Missing Alt Text (SEO): Unique in its class! The plugin automatically detects and generates the ALT attribute for images that are missing it or have an empty ALT (<code>alt=""</code>), drastically improving your SEO and site accessibility.</li>
</ul>
<h3>💎 GioCompress PRO – Unlock Maximum Performance</h3>
Upgrade to GioCompress PRO for total control and advanced features that take your image optimization to the next level:
<ul>
<li>Unlimited Optimization of Existing Images: No daily limits. Optimize your entire media library in one go!</li>
<li>Customizable Compression Quality: You decide the perfect balance between visual quality and file size for every compression type.</li>
<li>Automatic Resizing of Large Images: Giant photos will no longer slow down your site. The plugin automatically resizes them to ideal dimensions upon upload, saving space and bandwidth.</li>
<li>Full AVIF Format Support: Access the next-generation image format for even more aggressive optimization (requires the Imagick library installed on your server).</li>
<li>Lossy / Lossless Compression: Choose the compression mode that best suits your needs, for granular control over quality and file size (lossless compression is supported with Imagick).</li>
<li>Remove EXIF/IPTC Data: Automatically remove unnecessary metadata from images (like date, camera model, geo-tags) to further reduce file sizes and protect privacy (works with the Imagick library installed on your server).</li>
<li>Detailed Statistics and Space Saved: Keep track of how many images you’ve optimized and how much space you’ve saved on your server, with clear and intuitive reports.</li>
<li>Orphan Data Cleanup: Remove unused or “orphan” images and metadata from your media library to keep it clean, efficient, and performant.</li>
<li>Preserve Original File: If you prefer to keep a copy of the original JPEG/PNG file alongside the optimized version, the PRO option allows you to do so with a simple click.</li>
<li>Dedicated Email Support: Receive priority assistance directly from our expert team for any questions or issues.</li>
</ul>
<h3>⚙️ How It Works</h3>
Once activated, GioCompress works in the background completely automatically. It intercepts images uploaded to your site and processes them, optimizing and converting them into modern formats like WebP or AVIF. The optimized versions are then served on your site, guaranteeing quick loads and reduced bandwidth consumption. It’s a one-time setup, and then it does all the work for you!
<h3>🎯 Who Is GioCompress For?</h3>
<ul>
<li>Bloggers & Content Creators: For images that load instantly, captivating your audience.</li>
<li>E-commerce Stores: For fast and optimized product pages that boost conversions and enhance the shopping experience.</li>
<li>Businesses & Professionals: For a website that conveys speed, professionalism, and attention to detail.</li>
<li>Web Developers & Agencies: To optimize numerous client sites with a lightweight, robust, and cost-effective solution.</li>
<li>Anyone who wants to improve SEO and user experience on their WordPress site without compromising on quality or requiring advanced technical skills!</li>
</ul>

GioCompress

WordPress plugin for smart image optimization. Auto-converts to WebP, includes smart lazy loading, and generates missing alt text for better SEO.

Tempaloo WebP vs GioCompress