WordPress Plugin · Free & PRO EU AI Act Art. 50

AI labeling done.
Faster images.
100 % GDPR-compliant.

Img Performer automatically converts your WordPress images to WebP (Free) or AVIF (PRO) – directly on your server, without limits. No API key. No account. No data leaves your website.
Free already detects AI-generated images on upload and adds the AI labeling required by EU AI Act Art. 50. PRO also generates AI alt texts automatically on every upload – BFSG/accessibility-compliant, no manual click or bulk action needed.

AVIF directly on your server. No cloud upload, no DPA. Combines mandatory AI image labeling (EU AI Act Art. 50) and accessibility-compliant alt texts — automatically on every upload, not just on demand.

AI alt texts (PRO) require a DPA with your chosen AI provider.

Download for free See PRO

Requires WordPress 6.0+ · PHP 7.4+ · GD library

Img Performer – automatic image optimization, AI labeling and alt text generation in three steps
Customizable AI labeling badges (PRO): AI-generated, AI-modified and more variants
Img Performer dashboard: data saved, CO₂ avoided and AI labeling progress
Automatic AI detection in the attachment modal based on C2PA metadata, with manual correction

The legal situation – and how IMG Performer takes it off your hands

Nico Serapins from TutorialCenter first explains the legal situation around the EU AI Act and BFSG, then shows how automatic AI labeling, AI alt text and WebP conversion run in the WordPress backend — from installation to the first optimized image. 9:33 minutes, independently produced. German only for now.

Clicking play connects to YouTube (Google Ireland Ltd.) and loads the video from youtube-nocookie.com. No connection is made until you click.

Optimised file sizes and accessible images at the push of a button.

Img Performer is intentionally lean – focused on image optimisation, AI labeling (EU AI Act) and AI alt texts, without overhead from extra plugins.

🖼️

Always the smallest format

Free converts to WebP. PRO additionally creates AVIF. On delivery, the automatically smaller format wins – not blindly AVIF, but what actually works better for this image. Fallback to original if needed.

🔒

100% GDPR-compliant – including AI

All image conversions run locally on your server. For AI alt texts (PRO) we recommend Mistral AI – EU company, EU servers, no data transfer to the US. OpenAI and Claude also supported. Retroactively generated alt texts automatically become visible site-wide – even in templates with hardcoded alt="".

📐

All image sizes & viewports

All thumbnail sizes, srcset rewriting, and Retina support – automatically on every upload, for every resolution.

∞

Unlimited – no monthly limit

No quotas, no credits, no subscription for the basics. Convert as many images as you want – free, without restriction.

⚡

No configuration needed

Activate the plugin – done. No API key, no account, no setup. Works immediately with any theme.

🧩

Theme-compatible

Works with Gutenberg, classic editor, and most themes. Page builders like Elementor or Divi may use their own image pipelines – a quick test is recommended there.

🛡️

Admin-safe

WebP/AVIF only in the frontend. WordPress admin, REST API, and media library always show the original files.

🏷️

EU AI Act Art. 50: AI image labeling

Detects AI-generated images on upload and writes hosting-independent labeling into every generated image size – no Imagick required. Visible frontend badge, manual correction in the Media Library. Free covers new uploads; PRO additionally scans and labels images already in your library.

Mandatory from August 2, 2026

AI-generated images need machine-readable labeling. Now.

Article 50 of the EU AI Act requires AI-generated or AI-modified images to carry machine-readable labeling — deepfakes additionally need a label visible to visitors. Existing systems get a grace period until December 2, 2026, but new uploads need it now.

Aug 2, 2026

EU AI Act Art. 50 in effect

From this date, AI-generated images published on your website must carry machine-readable labeling — regardless of company size.

2-in-1

Image optimization and AI labeling combined

Most image optimization plugins only handle file size. Img Performer combines WebP/AVIF conversion with AI image detection and labeling in one plugin — no need to run two. After reviewing around 30 comparable WordPress plugins (as of Aug 20, 2026), none bundles image optimization, EU AI Act labeling, and automatic AI alt text generation in a single installation.

↻

Labeling survives the conversion

Because the same plugin generates the WebP/AVIF file and writes the label, the label is applied to those generated files too — not just the original. Run a separate optimizer alongside a separate labeling plugin, and the label can quietly disappear the moment the image gets re-encoded.

✓

Img Performer: detected & labeled automatically

Already included in the free version — no extra cost. Detects AI-generated images on upload, writes hosting-independent labeling into every image size, shows a visible badge, and keeps a searchable history.

See how it works →
EAA in effect since 28 June 2025

Accessible images are not optional — they are required.

The European Accessibility Act mandates WCAG 2.1 AA. It applies to new websites from June 2025, to existing ones from June 2027. Every image needs a meaningful alt text.

60–80%

of all WordPress images have no alt text

According to the WebAIM Million Report. With 500 images: 4+ hours of manual work — with no guarantee of EAA quality.

2-in-1

Image optimization and accessibility combined

Most image optimisation plugins only handle file size. Img Performer PRO combines WebP/AVIF conversion with AI-generated alt texts in one plugin — no need to run two.

✓

Img Performer PRO: automatically accessible

AI alt texts on every upload, bulk mode for the entire media library. Recommended: Mistral AI – EU company, EU servers, no data transfer to the US. Claude and OpenAI also available.

Compliance details & fact sheet →

Img Performer vs. the competition

Cloud plugins transfer your images to external servers and require a Data Processing Agreement. Local alternatives sometimes offer a local mode – but AVIF often only via a paid CDN. Pure image optimization plugins like the ones in the table below typically don’t cover AI image labeling under EU AI Act Art. 50 – dedicated labeling plugins have since emerged for that.

Feature Img Performer Cloud plugins Local + CDN
WebP conversion ✅ ✅ ✅
AVIF locally – no CDN needed PRO PRO ❌
Automatically smallest format (AVIF vs. WebP) ✅ ❌ ❌
Unlimited conversions – no monthly limit ✅ ❌ ✅
Images never leave your server ✅ ❌ ⚠️
No account, no API key for Free ✅ ❌ ⚠️
No DPA / no privacy policy update needed ✅ ❌ ⚠️
AI alt texts – accessibility-compliant PRO ❌ ❌
AI image labeling – EU AI Act Art. 50 ✅ ❌ ❌
Retroactive bulk scan of existing images PRO ❌ ❌
Bulk conversion PRO PRO ✅
Optimisation, AI labeling & AI alt texts in one plugin ✅ ❌ ❌

⚠️ Local alternatives sometimes require exec() on the server. Cloud services limit the free version to a few MB/month. AVIF with local plugins is often only available via a paid CDN.

🌍 Community Impact

Better together.

Every image Img Performer converts saves data – and therefore energy and CO₂. Small effort, real difference.

Users can voluntarily and anonymously contribute to the global stats. Only bytes are transmitted – no IP, no domain, no personal data.

–
saved together
–
CO₂ avoided
–
websites contributing

Simple, fair pricing

Start for free – upgrade anytime.

Free

0 €/forever
  • ✓ WebP for all image sizes (thumbnails, medium, large)
  • ✓ srcset rewriting for all viewports
  • ✓ Unlimited conversions on upload
  • ✓ Frontend delivery without third-party service
  • ✓ Quality setting (1–100)
  • ✓ Logging
  • ✓ EU AI Act Art. 50: AI image labeling on upload
Download for free
PRO

PRO

69 €/year

equals €5.75 / month

  • ✓ Everything in Free
  • ✓ AVIF on every upload – smallest file size, automatically preferred
  • ✓ Bulk conversion of the entire media library (incl. all thumbnail sizes)
  • ✓ AI alt texts: automatically accessibility-compliant alt texts, captions & descriptions
  • ✓ AI label badge: position, color, contrast & custom label image
  • ✓ Retroactive bulk scan: detect and label AI images already in your media library
  • ✓ Background queue (large sites, no timeout)
  • ✓ WP-CLI support
Upgrade now →

Release History

What we improved:

PRO v0.3.9 11 September 2026

Neu

  • Website-Kontext: KI-generierter Kontext-Absatz (Auto-Analyse bestehender Seiten oder 3 kurze Fragen für neue Websites) wird jedem Alt-Text-Generierungs-Prompt vorangestellt, für treffendere Beschreibungen. Inline editierbar, jederzeit über einen 2-Schritt-Wizard neu erzeugbar (IMP-171)
v0.3.9 31 August 2026

Behoben

  • Statusspalte in der Mediathek-Listenansicht zeigte für als “KI-verändert” klassifizierte Bilder fälschlich “KI-generiert” an – beide Status wurden unter einem Label zusammengefasst. Werden jetzt korrekt getrennt angezeigt, passend zu den Dropdown-Optionen (IMP-116)

Roadmap

What we're working on next.

Planned

  • Custom brand voice for AI alt texts – an even better fit for your site's context.
  • Agency license for use across multiple client websites.

Frequently asked questions

What is IMG Performer?

Enfants IMG Performer is a WordPress plugin for image optimization. It automatically converts images to smaller formats on upload, namely WebP and, with PRO, AVIF. It also writes accessible alt text with AI and detects and labels AI-generated images. Processing runs locally on your server, with no cloud service and no user account.

What does IMG Performer cost?

The Free version is permanently free with no monthly limit. The PRO version costs €69 per year or €9 per month and adds AVIF, automatic AI alt text, bulk processing, retroactive checking of existing images, a customizable label and WP-CLI.

What is the difference between Free and PRO?

Free converts to WebP without limit, detects AI images on upload and shows a labelling badge. PRO adds AVIF with automatic format selection, AI alt text on every upload, bulk processing of the entire media library, retroactive labelling of existing images, a customizable label and control via WP-CLI.

Is IMG Performer GDPR-compliant?

Yes. Image conversion and AI detection run entirely locally on your server, and no images are transferred to third parties. For the AI alt text in PRO you use your own provider account. Mistral, an EU company with EU servers, is recommended.

Are my images transferred to external servers?

Not for conversion and AI labelling, that happens locally. Only if you enable AI alt text in PRO is the relevant image sent to the AI provider you have chosen, for example Mistral in the EU.

Do I need my own API key for the AI alt text?

Yes. In PRO you store your own access to Mistral, OpenAI or Anthropic. That way you decide on the model and the cost yourself, and there is no credit quota that expires.

Do I have to label AI-generated images on my WordPress site?

For realistic depictions of persons or events, known as deepfakes, the EU AI Regulation in Article 50 requires a visible label. For other AI images, the machine-readable marking that modern AI tools already include is sufficient. It just must not be lost on your site. IMG Performer detects AI images on upload, keeps the marking intact across all image sizes and shows a visible badge on the front end on request.

When does the AI labelling obligation apply?

The transparency obligations in Article 50 of the EU AI Regulation have applied since August 2026.

How does IMG Performer detect whether an image is AI-generated?

On upload, the plugin reads the image’s embedded provenance data, for example C2PA or Content Credentials. If none is present, for instance with Midjourney, you choose the appropriate label yourself with a single click.

What is the German Accessibility Strengthening Act and does it affect my images?

The German Accessibility Strengthening Act, known as the BFSG, has required many websites to provide accessible content since June 2025. For images that means they need a meaningful alt text that a screen reader can read aloud. IMG Performer PRO writes these alt texts automatically on every upload.

Do I need a CDN so my images load quickly?

No. IMG Performer shrinks the images directly on your server and serves the right size for each device. No traffic goes through third-party data centres.

How many images can I convert in the free version?

As many as you like. The Free version has no monthly limit, no quota and no throttling.

Can IMG Performer process existing images in my media library retroactively?

Yes, in PRO. Bulk mode converts the entire existing media library, and the retroactive scan checks existing images for AI origin and labels them.

Does IMG Performer work with Elementor, Divi or other page builders?

Standard themes and the block editor are supported directly. For page builders with their own image pipeline there is a JavaScript fallback. A quick test of the image output is advisable there.

Does IMG Performer change my original images?

No. The converted variants are added alongside them. In the WordPress admin, the REST API and the media library you still see the original files.

What server requirements are there?

WordPress 6.0 or newer, PHP 7.4 or newer and the GD library. IMG Performer also runs on inexpensive shared hosting, without Imagick and without server commands.

What is WebP?

WebP is a modern image format that stores photos and graphics considerably smaller than JPEG or PNG at the same visible quality. IMG Performer creates WebP automatically, including in the free version.

What is AVIF?

AVIF is an even more efficient image format than WebP and saves additional file size on many images. IMG Performer creates AVIF in the PRO version and automatically serves the smallest suitable format.