Ptolemee is a PBR material organizer that offers a real-time preview. It is a handy tool for people with large materials collection.
It will automatically scan your materials folder and assign matched image to the suitable usage in the shader. The preview supports: Diffuse, normal, specular, roughness, metallic, emissive, opacity, opacity mask, subsurface scattering and displacement.
That is really nice way to browse a folder and directly see the displacement in action, you even can change the tesselation of the model.
As it is a real-time viewer you can change the angle of the lighting and see right away how light will affect your material; you can also use an environment backdrop to test your material in different situation; Bright day, in studio, interior, night.
Once you matched all the images composing your material, you can then render a thumbnail preview that will be saved in the same folder.
Finally, tags can be applied to each material. Combining these two features, you can have a nice way to quickly compare all your wood materials for example, to better choose the one that suites the most.
Available for Windows 10 PC and mac OS.