Yes, Kas Viewer is free to use. It is available as a free plugin on WordPress.org.

How many websites use Kas Viewer?

Kas Viewer has 10 active installations as tracked by WordPress.org.

What are the best Kas Viewer alternatives?

Popular alternatives to Kas Viewer include Autoptimize, WebP Express, Modern Image Formats. You can compare them side-by-side on our comparison pages.

Does Kas Viewer work with the latest WordPress?

Kas Viewer has been tested up to WordPress 2.9.2. It requires WordPress false+ and PHP false+.

PluginSift

Kas Viewer

Name: Kas Viewer
Rating: 5 (1 reviews)
Author: kasbeel

KasViewer is a image, or web content visor, base on sexlightbox script to create a popup box in the same frame to show html content.

By kasbeel·Images·Free

5(1 reviews)

·10 active installs·Updated 16 years ago

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As of April 2026, Kas Viewer is a WordPress images plugin with 10 active installations and a 5/5 rating from 1 reviews. It has been downloaded 3.8K+ times in total. Requires WordPress false+ and PHP false+. Available on WordPress.org since 2010. Last updated 16 years ago — may have compatibility concerns. Top alternative: Autoptimize.