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.

karim79

<p>This plugin allows you to optimize and resize new and existing WordPress image uploads through <a href="https://kraken.io" title="Kraken.io Image Optimizer" rel="nofollow ugc">Kraken.io Image Optimizer’s</a> API. Both lossless and intelligent lossy optimization modes are supported. Supported filetypes are JPEG, PNG and GIF (including animated GIF). Maximum filesize limit is 32 MB. Even when using Kraken.io’s lossy optimization, our system goes the extra mile to ensure that the results are of high quality, every time. You can just install the plugin and stop worrying.<br />
For more details, including detailed documentation and plans and pricing, please visit <a href="https://kraken.io" title="Kraken.io Image Optimizer" rel="nofollow ugc">Kraken.io</a>.</p>
<blockquote>
<p><strong>Get your FREE account with us, or a subscription starting from just <a href="https://kraken.io/plans" title="Kraken.io - Plans and Pricing" rel="nofollow ugc">USD $5 per month</a></strong></p>
<p>Sign up for your <a href="https://kraken.io/plans" title="Kraken.io - Plans and Pricing" rel="nofollow ugc">FREE Kraken.io Account</a> and try out our plugin with and the rest of our features now, including:</p>
<ul>
<li>100MB of free testing quota</li>
<li>API Access, with dozens of ready-to-use libraries and modules</li>
<li>Web Interface PRO with Image Resizing and sync-to-Dropbox</li>
<li>URL Paster</li>
<li>Page Cruncher</li>
<li>Optimization Stats and History</li>
<li>…and more.</li>
</ul>
</blockquote>
<h4>Quick start tutorial:</h4>
<p><span class="embed-youtube" style="text-align:center; display: block;"><iframe loading="lazy" class="youtube-player" width="750" height="422" src="https://www.youtube.com/embed/Wqtl0_cavx0?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en-US&autohide=2&wmode=transparent" allowfullscreen="true" style="border:0;" sandbox="allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox"></iframe></span></p>
<h4>About the plugin</h4>
<ul>
<li>You can use your Kraken.io API key and secret on as many sites/blogs as you like. We have no per-site license.</li>
<li>All images uploaded throught the media uploader are optimized on-the-fly. All generated thumbnails are optimized too.</li>
<li>The main image upload can be optionally resized – this is useful for preventing user uploads with unnecessarily large dimensions. You can specify the maximum width and/or height in Kraken.io->Settings.</li>
<li>When restricting the maximum dimensions of the main image using the resizing feature, the resulting image is <strong>enhanced</strong> using various advanced techniques, to help prevent downsample artifacts and “haloing” and produce a sharper result.</li>
<li>You can optionally preserve one or more of the Date, Copyright, Geotag, Orientation, Profile EXIF metadata tags.</li>
<li>Images can be automatically oriented according to their EXIF Orientation value – no need to manually rotate images.</li>
<li>All images already present in the media library can be optimized individually, or using the Bulk Action menu “Krak ’em all” feature.</li>
<li>This plugin does not require any root or command-line access. No compilation and installation of any binaries is necessary.</li>
<li>All optimization is carried out by sending images to Kraken.io’s infrastructure, and pulling the optimized files to your WordPress installation.</li>
<li>To use this plugin, you must obtain a full API key and secret from <a href="https://kraken.io/plans" title="Kraken.io - Plans and Pricing" rel="nofollow ugc">https://kraken.io/plans</a>. Our free account comes with a limited quota for testing our premium features, including this plugin.</li>
<li>Works great with WPEngine hosted blogs, including the staging area.</li>
<li>Since version 1.0.4, the plugin will work with local WordPress installations; the client site does not need to be published on the web.</li>
</ul>
<blockquote>
<p>★★★★★ <strong>Excellent Option for Image Optimization</strong><br />
  “The real power of Kraken is their “intelligent lossy” optimization. I use it on all my sites and have never once needed to roll back an image because of too much quality degredation. While I hope to see some more advanced settings added to the WordPress plugin in the future, it is a perfect solution as is.” – <a href="https://profiles.wordpress.org/collinmbarrett" rel="nofollow ugc">collin</a></p>
<p>★★★★★ <strong>Quality results, quality service</strong><br />
  “The plugin works really well and effortlessly, and the support is prompt, thoughtful, and thorough. I’m hooked.” — <a href="https://profiles.wordpress.org/illustrata" rel="nofollow ugc">illustrata</a></p>
<p>★★★★★ <strong>Optimize according to Google Pagespeed</strong><br />
  “Kraken was instrumental in optimizing images to comply with Google’s Pagespeed analyzing tool. Our travel blog travelmemo.com now sports Google’s ‘mobile friendly’ tag for mobile searches” — <a href="https://profiles.wordpress.org/qualterio" rel="nofollow ugc">Walter Schaerer</a></p>
<p>★★★★★ <strong>Perfect solution to speed up site!</strong><br />
  “I love this plugin! All the questions I had are quickly responded to and I see a huge saving with image size without losing the quality. I highly recommend this plugin!” — <a href="https://profiles.wordpress.org/ezone69" rel="nofollow ugc">ezone69</a></p>
</blockquote>
<p>Once you have obtained your credentials, from your WordPress admin, go to the Kraken.io settings page. The from there you can enter your API credentials, and select your optimization preferences. Once you have done this, click on <strong>Save</strong>. If everything is in order, it will simply say “settings saved” and give you a reassuring green tick that your credentials are valid. You can now start optimizing images from within Media Library. Any image you upload from now on, through any of the media upload screens will be optimized on-the-fly by Kraken.io.</p>
<p>For advanced users, there is a third party WordPress Command Line Interface (CLI) tool to allow image optimization from the command line, or by using cron. For details, visit: https://github.com/tillkruss/wp-cli-kraken</p>
<p>Please send bug reports, problems, feature requests and so on to support (at) Kraken dot io, or directly to the author of this plugin.</p>
<h4>Connect with Kraken.io</h4>
<ul>
<li>Website: https://kraken.io</li>
<li><a href="https://twitter.com/KrakenIO" title="@KrakenIO" rel="nofollow ugc">Twitter</a></li>
<li><a href="https://plus.google.com/107209047753760492207/" title="Google+" rel="nofollow ugc">Google+</a></li>
<li><a href="https://www.facebook.com/krakenio" title="Kraken Image Optimizer" rel="nofollow ugc">Facebook</a></li>
<li><a href="https://github.com/kraken-io" title="Kraken.io on Github" rel="nofollow ugc">Github</a></li>
</ul>
<h3>Notes and Incompatible plugins</h3>
<p>If you use the WP Super Cache plugin, you must <strong>disable the plugin</strong> prior to performing any image optimization, as it is known to cause strange and buggy behaviour with the Kraken.io Image Optimizer plugin.</p>
<h3>Any Questions?</h3>
<p>We love to hear from you! Just shoot an email to support (at) kraken dot io and let’s talk.</p>


Kraken.io Image Optimizer

- It works with 1 image but not at Google PageSpeed standard
- It doesn't work with bulk action
- The worst thing is I inputted my credit card there and they refused to let me cancel my subscription, what a very bad thing from kraken.io

Does not work for bulk actions, subscription cannot be cancelled

As others are noting here, their customer service is terrible. In fact I'd use the word "non-existent".

After signing up with an account I decided that the service was no longer what I needed and contacted them to delete my account. Multiple times, in different ways, I've contacted their customer support about this and never had a response. Currently breaching GDPR rules, they're going to be reported.

Thank goodness I never handed over any payments to them.

Terrible Customer Service

This plugin allows you to optimize your WordPress images through the Kraken.io API, the world's most advanced image optimization and resizing API.

Enfants Img Performer vs Kraken.io Image Optimizer