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

How many websites use STL Viewer?

STL Viewer has 100 active installations as tracked by WordPress.org.

What are the best STL Viewer alternatives?

Popular alternatives to STL Viewer include Panorama – 360 Virtual Tour, Panoramic…, Easy 3D Viewer, 3D Viewer Block – Interactive 3D Model…. You can compare them side-by-side on our comparison pages.

Does STL Viewer work with the latest WordPress?

STL Viewer has been tested up to WordPress 4.1.42. It requires WordPress 3.0+ and PHP false+.

STL Viewer — Reviews, Rating & Alternatives (2026)

Name: STL Viewer
Rating: 5 (5 reviews)
Author: christian.loelkes

As of April 2026, STL Viewer is a WordPress 3d plugin with 100 active installations and a 5/5 rating from 5 reviews. It has been downloaded 7.9K+ times in total. Requires WordPress 3.0+ and PHP false+. Available on WordPress.org since 2013. Last updated 11 years ago — may have compatibility concerns. Top alternative: Panorama – 360 Virtual Tour, Panoramic….

5/55 reviews

100active installs

7.9K+total downloads

13 yearssince 2013

Overview

With a simple shortcode you can enable and embed a WebGL viewer to show 3d stl files.

In the current version:

STL files have to be uploaded to /wp-content/uploads
The viewer can’t be used more than one time per page. This might be a feature because the viewer needs a lot of resources.

A complete description of the plugin can be found on my blog.

Read full description on WordPress.org