Instagram shows photos at up to 1080 pixels wide. Resizing first means faster uploads and you control how the photo is scaled.
Anything larger than about 1080 pixels gets scaled down by Instagram anyway. Doing it yourself with high-quality resizing avoids an extra round of compression on a big file.
This page fits photos within 1080 pixels on the longest side at quality 88 and keeps the shape of your photo. Crop to square or portrait in your phone's editor first if you want a specific shape.
No. It keeps your photo's shape and only makes it smaller. Crop first if you want square or 4:5 portrait.
Yes. Portrait Story photos come out 1080 pixels tall on the longest side. If you want them 1080 wide, set the longest side to 1920.
Yes. Add all the photos and download them as a ZIP.