Import from ShaderToy no longer works - Mac OS X 10.15.6

Find any shader that I enjoy on ShaderToy (or GLSL Sandbox), select the Import from ShaderToy (or…), and I continually get this error message:

Error: download from URL “” is of wrong type

I’m on the latest version of ISFEditor for Mac OS X. No updates available, currently. Sure would love to be able to download and convert these shaders to something useable!

1 Like

I submitted a bug report for the same problem a few days ago

1 Like

Great! I do enjoy being able to import shaders for my various visual tools. Magic Music Visuals has an online converter for now - just convert and save as a .fs file:

Maybe good enough for the meantime.


Great thanks. Did not know about that product will check it out.

Same error message on Windows 10. No difference when I tried going back a few versions (from ISFEditor to

Magic’s online converter managed to convert the shader I was interested in (although those with buffers often don’t work). I then used ISFEditor to add the extra features I wanted.

Got the same… and I thought it was just the shader I was trying to import that had some ‘wrong type’ problem, lol.

I’m having the same issue on 10.15.7 and using ISF Editor 2.9.13
hopefully I kept v. which is working fine


Yeah, this is pretty much still happening for me as well. What’s going on with this? Same issue still exists now on Big Sur. Please repair this so we can actually download the shaders?

Error Message for just ONE of the failed downloads:

“Error: download from URL “” is of wrong type”

Please repair? Would be great to actually use these shaders.

1 Like

Use ISF Editor import still works.

1 Like


I’ve brought in the watercolor smear with ISF editor

I had to comment out these two lines to make it work.
gl_FragCoord.x += 0.25;
gl_FragCoord.y += 0.3;

There’s a lot of useful information in the ISF Shaders documentation: (1.5 KB)

1 Like

FYI ISF Editor has been updated to 2.9.14 Check the auto updater.


The updater crash, Installed from full installer - works fine !! :)

1 Like

yes! I can confirm that shadertoy import works in current version of isf editor.

The in app update didn’t work for me either, grabbed installer here :


1 Like