This plugin hasn’t been updated in over 2 years. It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress.

STL Viewer


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.



  1. Upload the directory to the /wp-content/plugins/ directory
  2. Activate the plugin through the ‘Plugins’ menu in WordPress

  3. Upload an STL-File to WordPress

  4. Insert the shortcode [stl file=”filename.stl” ]

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


works fine

Only one but:
but it would be nice if Settings, Rendering Options and Lightning Option would be explained

Works, but some setup is required (read on how):

… but needs some config.

1. Enable .stl file upload (or any other file type or file-extension)
You have to disable FILTER upload before be able to upload an .STL file. Just add

// -- allow all files to be uploaded

somewhere in your config.php file.

2. Refer your .STL files correctly
Then make sure you refer your .STL files correctly!
If your domain is:

Your uploads will go to maybe:

So refer the stl file as:


because is added by the plugin itself.

3. Example:
Insert code is not documented within the plugin, which is a shame. So here it is:

[stl file="/2015/10/3dprinted-wrench.stl" /]

Hope that helps.

4. Setup Background
I was not able to set the background, which seems to be just a black color by default.
There is a way within the plugin to setup a tile (image) but it did not work correctly. (Just a small stripe is shown.)

I’m using it here:

I did try:
[stl file="myfile.stl" background="#f8f8f8" /]
but does not seems to work for me.

If someone knows how to setup Background color (mono, fix), or tile image, please let me know!

Read all 5 reviews

Contributors & Developers

“STL Viewer” is open source software. The following people have contributed to this plugin.




  • Minor bug fixing.
  • Scripts are only loaded if a shortcode was found on the page.


  • Complete rewrite of the plugin.
  • Many settings


  • Removed hard-coded links.


  • the settings page is working again.


  • added stuff to the readme file
  • cleanup


  • code cleaning
  • settings page is now working


  • less hard-coded stuff
  • added more parameters for the shortcode
  • cleaning


  • first working version based on a howto plugin from the web