MintGradeInstagram accepts several feed shapes, but an appropriate crop and a clean source usually matter more than chasing one universal export number.
A practical way to approach it
Pick the destination first
A square post is commonly 1:1; a portrait feed image is often framed at 4:5. Choose the crop before final sharpening or reducing file size.
Start with enough detail
For a 4:5 example, 1080 × 1350 pixels is a familiar delivery size. Avoid repeatedly saving and resizing a screenshot.
Export a clean copy
Use JPG for ordinary photos and inspect the upload in the app. Compression can still change fine texture and gradients after posting.
One limitation to remember
MintGrade adjusts color and provides output options, but use a crop tool first if you need an exact aspect ratio.
Continue in MintGrade: Export and Finish tools
A square post is commonly 1:1; a portrait feed image is often framed at 4:5. Choose the crop before final sharpening or reducing file size.
Opens the relevant controls for JPG, PNG and WebP files. No edit is applied until you choose one.
Open export and finish tools in MintGrade →