New website Share Textures has released over 250 free sets of photographic textures under a CC0 licence, including ground materials, flooring, concrete, metal, plaster and fabric.
All of the textures are provided at 4,096 x 4,096px resolution and include diffuse, displacement, normal, specular and ambient occlusion maps in TIFF or PNG format.
If you like the textures, support future texture development via Patreon
A $3 pledge gets you a direct Google Drive link enabling you to download all of the texture maps with a single click, or you can show your appreciation by making a one-time donation via Ko-fi.
Free Seamless CC0 PBR Texture Library