A grey box usually means the Gallery app can't generate a thumbnail for the file type (often TIFF or large PNGs). Converting to standard JPG forces the Gallery to regenerate a valid thumbnail.
Photos showing as grey squares on Samsung/Pixel? Fix the cache or format.
The most reliable way to fix format incompatibility on Android is to standardise (convert) the file.
100% Free • Private & Secure • Works Offline
A grey box usually means the Gallery app can't generate a thumbnail for the file type (often TIFF or large PNGs). Converting to standard JPG forces the Gallery to regenerate a valid thumbnail.
LocalImageConverter supports over 50 formats. Whatever file you are struggling with, we can probably fix it.
View all supported formats