Deep dive
Instagram image compression guide
Instagram image compression is easier to handle when you stop treating it as a mystery and start treating it like an export workflow. The important pieces are aspect ratio, pixel size, sharpening order, and final JPEG compression.
Aspect ratio
Aspect ratio controls the shape of the image. If your image does not match the post type, Instagram may crop it or fit it into a different frame. That is why IGCOMPRESSOR asks for the format before export.
Pixel size
The most useful Instagram photo exports are based around 1080px wide images. IGCOMPRESSOR uses 1080 x 1080 for square posts, 1080 x 1350 for portrait posts, 1080 x 566 for landscape posts, and 1080 x 1920 for stories.
Sharpening
Sharpening should be subtle. Too much sharpening creates halos and harsh edges. Too little sharpening can make resized photos look flat. IGCOMPRESSOR applies a light pass after resizing so the sharpening targets the final pixels.
JPEG compression
A giant file is not always a better upload. A clean JPEG prepared for the final dimensions can survive platform compression better than a huge image that gets aggressively resized later.
Best starting point
Start with the 4:5 portrait preset for feed photos. It gives a strong vertical presence and is often the best default when you want detail to show in the Instagram feed.
Try the IG compressor, or read why IGCOMPRESSOR works.