ReformBox

Universal Lightbox for WordPress – lightbox support for Group, Paragraph, Video blocks with poster images, and core Image workflows.

Author:Tsubu (profile at wordpress.org)
WordPress version required:6.4
WordPress version tested:6.9.4
Plugin version:0.3.3
Added to WordPress repository:25-03-2026
Last updated:26-03-2026
Rating, %:100
Rated by:1
Plugin URI:https://github.com/tbshiki/reformbox
Total downloads:79
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ReformBox extends WordPress Lightbox functionality beyond images. It currently supports Group, Paragraph, and Video blocks with poster images directly, while delegating Image lightbox behavior to WordPress core. For core/image, ReformBox only syncs the sidebar toggle with core lightbox settings.

This plugin is developed on GitHub.

Supported Blocks:

  • Image Block – Uses WordPress core lightbox behavior (ReformBox panel toggles core lightbox.enabled)
  • Video Block – Opens in a lightbox when a poster image is set (poster acts as the click trigger)
  • Group Block – Supports both same mode (same content in page + modal) and split mode (separate Preview/Modal direct child Group slots)
  • Paragraph Block – Click to open itself in a lightbox

Features:

  • No-code lightbox creation via block editor controls
  • Core-first image lightbox integration (core/image)
  • Core-aligned overlay markup for custom lightboxes
  • Core-aligned zoom animation
  • ESC key and overlay click to close
  • Accessible (ARIA attributes, focus management, keyboard navigation)
  • Group split mode with Preview/Modal slot mapping
  • Safe split fallback: if no Modal slot is assigned, Preview content is used
  • Lazy-loaded assets (CSS/JS only loaded when needed)
  • Self-lightbox videos defer preload/autoplay until opened
  • Core image workflow integration without overriding core image rendering
  • Global overlay background color and opacity controls in Settings > ReformBox
  • Plugin list row includes a Settings action link for quick access
  • Lightweight and performant
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