: You can use the Facebook Image Resizer from soona or templates from Canva to quickly see how will look compared to standard presets.

is getting cropped in the mobile feed, consider adjusting your design to these official "sweet spot" sizes: Recommended Size (Pixels) Aspect Ratio Square Landscape (Link/Ad) Stories / Reels Cover Photo (Desktop) Optimization Tips

: Always use sRGB to ensure colors look the same on all mobile devices and desktops.