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.

Freemius

Harv

<p>Harvify Image Optimizer helps WordPress administrators convert Media Library images to modern WebP and AVIF formats without running heavy compression work inside PHP.</p>
<p>The plugin scans lightweight attachment metadata first, then your browser converts selected images in a small queue. Images are processed with Web Workers and OffscreenCanvas where available, uploaded back through authenticated WordPress REST API requests, and released from browser memory as each item finishes.</p>
<p>This client-side approach is designed for shared hosting environments where PHP memory limits and execution timeouts can interrupt large image optimization jobs.</p>
<h4>Key features</h4>
<ul>
<li>Convert JPEG, PNG, WebP, and AVIF source images to WebP or AVIF.</li>
<li>Scan one source format at a time so existing target-format images are not accidentally reprocessed.</li>
<li>Select a few images for a test run before processing the full queue.</li>
<li>Skip small files, very large images, selected upload paths, or filename patterns.</li>
<li>Deliver Pro sidecar variants through PHP picture tags when available.</li>
<li>Adjust quality and queue concurrency from the admin screen.</li>
<li>Save queue state in the browser with IndexedDB so work can resume after interruption.</li>
<li>Keep wp-admin responsive by doing conversion work in browser workers.</li>
<li>Process images locally in your browser without using an external optimization API.</li>
<li>Optional original-file deletion, disabled by default.</li>
</ul>
<h4>Privacy and external services</h4>
<p>Harvify Image Optimizer does not send images to a third-party compression service, load scripts from external CDNs, or track usage. Images are fetched by your browser from your own WordPress site and uploaded back to your own WordPress REST API.</p>
<p>AVIF encoding uses bundled WebAssembly encoder files. The current AVIF path uses the Apache-2.0 licensed @jsquash/avif single-thread encoder, with the earlier bundled wasm-avif encoder retained as a local fallback.</p>
<h4>Format testing</h4>
<p>If you want to experiment with AVIF conversion outside your WordPress Media Library first, you can use this browser-based test tool:</p>
<p><a href="https://conversores.online/en/avif-to-png-converter/" rel="nofollow ugc">AVIF to PNG Converter</a></p>


Harvify Image Optimizer for WebP and AVIF

Convert Media Library images to WebP or AVIF locally in your browser.

Enfants Img Performer vs Harvify Image Optimizer for WebP and AVIF