mirketio

Mirket Popup Redirect Countdown is a lightweight WordPress plugin that displays a full-screen popup overlay with a custom image. If the visitor doesn’t dismiss it, a countdown timer redirects them to a target URL.
Features:
<ul>
<li>Full-screen lightbox overlay with a configurable image</li>
<li>Countdown timer with automatic redirect</li>
<li>Animated progress bar showing remaining time</li>
<li>Dismiss by clicking close button, clicking outside, or pressing Escape</li>
<li>Cookie-based tracking to prevent re-display after dismissal</li>
<li>Display on homepage, all pages, or specific pages</li>
<li>Redirect to an internal WordPress page or external URL</li>
<li>Adjustable overlay opacity</li>
<li>WordPress media library integration</li>
<li>Vanilla JavaScript — no frontend jQuery dependency</li>
</ul>

Mirket Popup Redirect Countdown

Shows an animated image overlay on configurable pages. If the user doesn't close it, a countdown redirects them to a target URL.

aknieriem

The simplelightbox wordpress plugin brings the <a href="https://github.com/andreknieriem/simplelightbox" rel="nofollow ugc">simplelightbox</a> jquery plugin to wordpress.
You can change every option that the lightbox have in the admin panel under Design -> Simplelightbox.

Simplelightbox

Touch-friendly image lightbox for mobile and desktop without requiring jQuery

Mirket Popup Redirect Countdown vs Simplelightbox