Lymio: Background Remover for WordPress

Lymio is a WordPress plugin developed by the Palleon Team that removes image backgrounds entirely within the browser using WebAssembly and ONNX runtime models. Because all processing happens locally on the user's machine, no images are sent to external servers and there are no per-image API costs. It is sold as a one-time or annual license through Freemius.

What It Is

Lymio is a browser-side AI background removal studio embedded directly into the WordPress admin. It downloads AI model files to the browser cache on first use and then processes images locally using Web Workers — meaning the WordPress server itself is never involved in the computation. The plugin targets WordPress site owners, WooCommerce shop managers, and photographers who need fast, private, and cost-effective background removal at scale.

How the Local Processing Architecture Works

Rather than routing images through a cloud API, Lymio uses the ONNX runtime compiled to WebAssembly. Three bundled models cover different use cases:

• RMBG-1.4 — the default model, optimized for human portraits and complex edges like hair
• ISNet — slower but highly precise for intricate product photo edges
• Modnet — lightweight and fast, suited for quick edits and lower-end devices

Model files are approximately 200 MB each and are hosted on a CDN. They download once on first launch and are then cached in the browser for all subsequent sessions, keeping server bandwidth and storage unaffected.

WordPress and WooCommerce Integration

Lymio integrates directly into the WordPress Media Library, adding an "Edit with Lymio" action link to any image. When a background is removed, the plugin overwrites the original attachment file and applies cache-busting logic so the updated transparent image appears everywhere on the site without changing URLs or breaking SEO. Key workflow features include:

• Bulk background removal with a queue system supporting pause and resume
• Dedicated AI Studio panel for WooCommerce products, covering featured images, galleries, and variations
• High-quality PNG or lightweight WebP output options
• 3D compositing tools for repositioning replacement backgrounds across X, Y, and Z planes

Frontend Shortcode for Visitor Use

The [lymio] shortcode embeds the full background remover tool on any public WordPress page or post. Visitors can upload their own images, remove backgrounds, and download results — all running on their own device, consuming zero server resources. The shortcode supports customizable branding, dynamic color swatches via Coloris, and drag-and-drop uploads.

Palleon Ecosystem Integration

Lymio is part of the broader Palleon product family, which the Palleon Team has been building since 2011. Users who own both Lymio and the Palleon WordPress Image Editor plugin can access AI background removal directly inside the Palleon editor interface, eliminating the need for third-party credits and enabling a unified design workflow. Other products in the family include Altivo (AI alt text generator) and Pwork (WordPress intranet).