Blog
WebP, AVIF, WordPress performance, accessibility — and how this plugin was built.
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IMG Performer compared to AutoAlt and alttext.ai
AutoAlt and alttext.ai generate AI alt text as an external cloud service with its own quota. IMG Performer does it locally in WordPress via your own API key – plus image optimization and EU AI Act labeling in one plugin.
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IMG Performer vs. SEO'n'AI
SEO'n'AI does pure AI labelling well. IMG Performer does the same plus image optimization, AI alt text and a retroactive bulk scan.
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Why a European AI model matters for alt text
An alt text tool with a European AI model means, in practice: your own API key plus an EU provider like Mistral. IMG Performer leaves you that choice.
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The best alternative to Imagify
If you want a local alternative to Imagify – no cloud upload, no account – IMG Performer is it: WebP free, AVIF in Pro, plus AI alt text and EU AI Act labelling in one plugin.
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Adding a visible AI label under images in WordPress
The most reliable way to put a visible AI label under images in WordPress is a plugin that detects AI images on upload and shows the badge automatically – with manual classification for edge cases.
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The best European alternative to alttext.ai
alttext.ai is a US service with no EU server location. AutoAlt.ai and IMG Performer are the more European routes – with different degrees of control over the AI inference.
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Convert existing WordPress images to WebP and AVIF retroactively
A newly installed plugin initially converts only new uploads. The biggest effect is in the existing stock – that needs a bulk run across the whole media library.
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Fines under EU AI Act Article 50: what operators really face
EUR 35 million and 7% of turnover concern prohibited AI practices, not the labeling obligation. Article 50 has a lower range – and the practical risk for ordinary websites is low.
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Making your WordPress media library accessible (BFSG)
Every meaningful image needs alt text, decorative images need a deliberately empty one. A step-by-step guide to cleaning up a grown media library retroactively.
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WooCommerce: optimising product images without sending them to the cloud
Catalog images, galleries, zoom views – in WooCommerce, product images are almost always the biggest drag. Local conversion makes the shop faster, no cloud subscription needed.
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What does the AI labeling obligation mean for my ordinary business website?
Article 50 of the EU AI Act has applied since 2 August 2026. What you as the operator of an ordinary business website actually need to do – and what's the AI providers' job.
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The best WordPress image optimization plugins in 2026
Local on your own server, or a provider's cloud? The common WordPress image optimization plugins, sorted by that exact question.
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Do I have to describe the images on my website?
Since June 2025 the German Accessibility Strengthening Act requires meaningful alt text for images on many websites. What alt text is, when it's mandatory, and how to stop doing it one image at a time.
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Is my WordPress website too slow? How to find out
A website feels slow when images pop in late and your phone takes longer than your desktop. Here's how to check in two minutes – and what's usually behind it.
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Labeling AI images from Midjourney, DALL·E and Firefly in WordPress
DALL·E, Firefly and Google models already embed a C2PA signature, Midjourney does not. In WordPress it's often lost anyway when the image sizes are generated.
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The best GDPR-compliant alternative to ShortPixel
Mandatory account, credit system, every image sent to the ShortPixel cloud – if you're looking for an alternative, there are two local options: IMG Performer and EWWW in local mode.
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IMG Performer or Klarvo?
Klarvo sets an Art. 50 notice and a visible label and is free. IMG Performer detects AI images automatically, writes the marking into every image size and optimizes as well.
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IMG Performer or Optimole?
Optimole delivers images through a global CDN, with an account and billing by visit count. IMG Performer converts locally and serves from your own server.
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IMG Performer or Smush?
Smush is the best-known brand in the segment. AVIF and the stronger compression are Smush Pro (WPMU DEV account). IMG Performer brings AVIF, AI labelling and alt text locally.
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IMG Performer or Converter for Media?
Both convert WebP/AVIF locally and without an account. The difference: IMG Performer additionally labels AI images (EU AI Act) and generates accessible alt text.
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IMG Performer or EWWW? The comparison for WordPress
EWWW can run locally – the basic difference falls away. IMG Performer stays entirely local, needs no account and covers AI labelling and alt text.
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GDPR-compliant image optimization for WordPress – the overview without a forced cloud
Which WordPress image optimization runs without a cloud upload? The overview: local plugins, cloud services with EU servers, and the difference for processing on behalf of the controller.
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IMG Performer or Imagify? The comparison for WordPress
Imagify processes images in the cloud (servers in France) with an account and credits. IMG Performer runs locally and additionally covers AI labelling and alt text.
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GDPR-compliant image optimization and automatic AI alt text in WordPress
WebP/AVIF and AI alt text without a cloud upload: local processing, your own API key, no credit system. This is how image optimization stays GDPR-compliant.
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WebP, AVIF and AI labelling for WordPress – in one plugin
One plugin for all three image topics on WordPress: WebP/AVIF conversion, EU AI Act labelling and accessible alt text – local, no cloud.
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Labeling AI images in WordPress: C2PA, thumbnails and the EU AI Act
WordPress strips C2PA metadata when generating thumbnails. This is how the machine-readable AI marking under Art. 50 EU AI Act stays intact in every image size.
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Labeling AI images in a legally sound way (EU AI Act Art. 50) – the practical check for WordPress
Which AI images must be labeled, and which don't? Metadata vs. visible obligation, exemptions and implementation in WordPress.
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IMG Performer, AutoAlt.ai or alttext.ai? Alt text for WordPress compared
AI alt text for WordPress compared: local processing with your own AI key (IMG Performer) vs. a cloud service with credits (AutoAlt.ai) vs. a US tool (alttext.ai).
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IMG Performer or ShortPixel? The comparison for WordPress image optimization
ShortPixel processes images in the cloud with an account and credits. IMG Performer runs locally, with no account, and adds EU AI Act Art. 50 labelling.
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Fix AI labeling directly from the media library
Two small improvements that make everyday use of Img Performer noticeably smoother: fix labeling right from the list view, and 'Optimize all images' now sits where you'd expect it.
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Custom Label: upload your own AI labeling icon
The built-in labeling badge doesn't fit every design. With Custom Label (PRO) you upload your own icon – separately for 'AI generated' and 'AI modified', rendered at exactly the size you upload.
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AVIF labeling: the last missing piece is fixed
We had a blind spot of our own: AI labeling reliably survived conversion to WebP — but got lost with AVIF. The fix is live now, for Free and PRO.
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EU AI Act Art. 50: A checklist for WordPress operators
As of today, the labeling obligation for AI-generated images is in effect. A compact checklist of what WordPress operators should check right now.
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Why AI labeling and image optimization belong together
When an optimization plugin and a labeling plugin run separately, the AI label can quietly disappear the moment the image gets re-encoded. A technical detail with legal consequences.
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AI image labeling is here: Img Performer 0.3.0 is live
Automatic detection, a visible badge, manual correction, a searchable history: Img Performer 0.3.0 with AI image labeling for EU AI Act Art. 50 is available now.
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EU AI Act Art. 50: AI images must be labeled starting August 2
From August 2, 2026, AI-generated images must carry machine-readable labeling. WordPress core doesn't solve this — we're already working on making sure Img Performer does.
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PRO 0.2.1: Faster Scan, Playground Support, and UX Fixes
Real user feedback drives us forward. Version 0.2.1 resolves three reported issues — including a performance bug in the media library scan and a license deactivation failure in WordPress Playground.
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Img Performer is now on wordpress.org
After the review, after the tests, after the whole journey: the plugin is live. Free, installable directly from WordPress — with AVIF support waiting in PRO.
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Final tests, first excitement
Right before a launch you run through everything one more time. Every flow, every edge case, every button. Not out of fear — because you want to get it right.
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AVIF vs. WebP – what's the difference for your WordPress site?
Both formats save bandwidth. But AVIF compresses significantly better — and is the only standard that also supports accessibility-relevant metadata.
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The EAA and alt texts: what it means for WordPress sites
The European Accessibility Act has been in effect since June 2025. Alt texts on images are no longer optional — and the backlog in existing media libraries is often larger than expected.
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Why your WordPress images don't belong in the cloud
Image optimisation via external APIs is convenient – until your data protection officer asks where the customer data actually ends up. A quick look at what really happens during conversion.
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Why we built Img Performer
It started with a simple question: don't you have a way to keep image sizes under control? The requests kept coming. At some point we stopped saying no.
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