Similar codec pack for image formats

Is there a codec pack similar to K-Lite, but one that allows the thumbnail preview of a wide range of image formats in Windows Explorer, including PSD, EPS and other that are not shown on Windows?

I know FastPictureViewer Codec Pack, but I'm seeking a free or open-source alternative.

As to thumbnail preview not supported by Windows for some video formats, I used Icaros in the past, on a Windows 7 PC, but haven't tested it on Windows 10 yet.

TIA.

Admin wrote:https://sourceforge.net/projects/sagethumbs/

Thanks, but that's a context menu extension, and I already have XnShell (XnView Shell Extension), which also shows thumbnails in the context menu. What I seek is a way to show the "regular" thumbnails inside Windows Explorer for image formats including those Windows fails to display, like PSD, EPS and a some others.

I have never used it myself but afaik sagethumbs also does thumbnails in explorer.