PNG vs JPG for Instagram: Which Should You Upload?
Instagram's Internal Processing
Instagram converts every uploaded image to JPG regardless of what you upload. It resizes images to a maximum of 1080 pixels wide, applies its own compression, and strips metadata. This means the format you upload is less important than the quality and resolution of the source image.
Why JPG Is Usually the Better Choice
Since Instagram converts everything to JPG anyway, uploading a JPG gives you the most predictable results. Upload at 1080 pixels wide with 95-100% quality. The file will be smaller than PNG, upload faster, and you can preview exactly what Instagram will display (minus additional compression).
When PNG Might Help
For images with sharp text, logos, or graphic design elements, PNG can sometimes produce slightly better results after Instagram's re-compression. The lossless source gives Instagram more clean data to work with, reducing double-compression artifacts. The difference is subtle and only visible for specific types of content — mostly text overlays and flat illustration styles.
The Optimal Settings
Square posts: 1080×1080 pixels. Portrait: 1080×1350 (best for engagement — takes up more screen space). Landscape: 1080×608. Stories/Reels: 1080×1920. Color space: sRGB (Instagram converts other color spaces, sometimes causing color shifts). Format: JPG at 95% quality. File size: keep under 15 MB. Following these specs minimizes Instagram's re-processing.