Instagram Image Sizes Guide (2026)
Instagram post (square)
1080×1080 pixels — use our Resize for Instagram Post tool.
Instagram portrait (4:5)
1080×1350 pixels — takes more feed space than square.
Instagram Story & Reels
1080×1920 pixels (9:16 vertical) — use Resize for Instagram Story.
Free Tools
Frequently Asked Questions
Do I need Photoshop?
No — free browser tools on myonlineimages.top resize locally.
Will Instagram compress again?
Yes — starting with correct dimensions reduces double compression blur.