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<p>HostSalt Image Optimizer connects your WordPress site to the HostSalt IO cloud API to automatically compress and convert images on upload. No server-side libraries required — just install, connect and start saving bandwidth.</p>
<p><strong>Features:</strong></p>
<ul>
<li>Automatic optimization on upload — no manual steps needed</li>
<li>Converts images to WebP or AVIF for maximum compression</li>
<li>Smart format selection — picks whichever format saves more</li>
<li>Lossless backup — restore originals any time with one click</li>
<li>Bulk optimize your entire existing media library</li>
<li>Bulk restore all images to their originals</li>
<li>Monthly usage dashboard built into wp-admin</li>
<li>Works with all themes and page builders</li>
<li>Multisite compatible</li>
</ul>
<p><strong>How it works:</strong></p>
<p>When you upload an image, HostSalt Image Optimizer sends it securely to the HostSalt IO API. The API compresses and converts the image, then returns the optimized version. The original is kept as a backup so you can restore at any time.</p>
<p>A free plan is available with 50 optimizations per month. Paid plans are available for higher volumes.</p>
<h3>External Services</h3>
<p>This plugin sends image data to an external API service operated by HostSalt:</p>
<ul>
<li><strong>API endpoints:</strong> https://images.hostsalt.com/optimize and https://images.hostsalt.com/usage/{site_id}</li>
<li><strong>Data sent:</strong> image file contents, output format preference, quality setting, max width setting, and a unique site identifier derived from your site URL (MD5 hash)</li>
<li><strong>Data received:</strong> optimized image file</li>
<li><strong>When:</strong> on image upload (automatic), on manual Optimize button click, and during bulk optimization</li>
</ul>
<p>This service is operated by HostSalt. Please review the following before use:</p>
<ul>
<li>Terms of Service: https://hostsalt.com/terms-of-service/</li>
<li>Privacy Policy: https://hostsalt.com/privacy-policy/</li>
</ul>
<p>No personal user data is transmitted. Only image files and site configuration are sent.</p>


HostSalt Image Optimizer

Automatically optimize, compress and convert images to WebP or AVIF on upload — powered by the HostSalt IO API.

Enfants Terribles digital GmbH

<p><strong>Enfants Img Performer</strong> converts your WordPress images to WebP automatically on upload – without sending a single byte to an external service. Everything runs on your own server, without limits.</p>
<p>The separately available <strong>Enfants Img Performer PRO</strong> plugin unlocks AVIF conversion, bulk optimization and AI-powered alt text generation.</p>
<h4>Why Img Performer?</h4>
<p>Most image optimization plugins send your images to a third-party cloud service for processing – often with monthly quotas and accounts required. Img Performer is different: it uses PHP’s built-in GD library (with Imagick as fallback) to convert images locally. Your images never leave your server. No account needed. No monthly limit.</p>
<h4>What it does</h4>
<ul>
<li>Converts JPEG and PNG uploads to WebP automatically – unlimited, free</li>
<li>Converts all registered image sizes (thumbnail, medium, large, custom)</li>
<li>Rewrites <code>src</code>, <code>srcset</code>, <code>href</code> (lightbox) and lazy-load attributes in the frontend</li>
<li>Deletes WebP files when the original image is deleted</li>
<li>Logs all conversions for transparency</li>
<li>Configurable quality setting (1–100, default 85)</li>
<li>CO₂ savings tracker with optional anonymous global statistics</li>
</ul>
<p>The separately available <strong>Enfants Img Performer PRO</strong> plugin (installed alongside this plugin) adds:</p>
<ul>
<li>AVIF conversion – up to 50% smaller than WebP</li>
<li>Bulk Converter – convert your entire media library in one click</li>
<li>AI Alt Text Generator – WCAG-compliant alt texts via Mistral, Claude or OpenAI</li>
</ul>
<h4>GDPR / DSGVO</h4>
<p>Enfants Img Performer processes all images exclusively on your own server. No image data, IP addresses or personal information is transferred to external services. No API keys required.</p>
<p>The only optional external connection is the anonymous CO₂ statistics feature (opt-in, disabled by default). When enabled, it sends only total bytes saved to our EU-based server – no IP address, no domain, no personal data.</p>
<h4>Requirements</h4>
<ul>
<li>WordPress 6.0 or higher</li>
<li>PHP 7.4 or higher</li>
<li>GD extension with WebP support (<code>imagewebp</code>)</li>
</ul>
<h3>External Services</h3>
<p>This plugin can optionally send anonymous usage data to an external service operated by Enfants Terribles digital GmbH.</p>
<p><strong>CO₂ Statistics (opt-in, disabled by default)</strong></p>
<p>When you enable “Global sustainability stats” in the plugin settings, the plugin sends the following data once per day to our EU-based server:</p>
<ul>
<li>An anonymous random site ID (UUID v4, generated locally, no personal data)</li>
<li>Total bytes saved through WebP conversion</li>
</ul>
<p>No images, no IP addresses, no domain names and no personal data are transmitted. The anonymous site ID cannot be traced back to you or your website.</p>
<p>This data is used solely to display a global CO₂ savings counter on the plugin website.</p>
<ul>
<li>Service: Enfants Terribles digital GmbH (EU-based server, Netcup, Germany)</li>
<li>Endpoint: https://tools.enfants.de/imp-stats/</li>
<li>Privacy Policy: https://img-performer.enfants.de/datenschutz/</li>
<li>Terms of Use: https://img-performer.enfants.de/nutzungsbedingungen/</li>
</ul>


Enfants Img Performer

Automatically converts uploaded images to WebP on upload – on your server. No API, no cloud, no limit. 100% GDPR compliant.

HostSalt Image Optimizer vs Enfants Img Performer