Instagram Post Resizer
Upload an image, choose an Instagram post preset, fit or fill the canvas, and download a post-ready PNG.
Your social image will appear here
Create Instagram post sizes
Three post presets
Square, portrait, and landscape canvas sizes are included.
Fit or fill output
Choose full-image fit or edge-to-edge crop depending on the post.
Private browser workflow
Your image stays in your browser. ImageConver does not upload it to a server.
작동 원리
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1
Upload image
Choose a photo, product shot, or design.
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2
Pick post size
Select square, portrait, or landscape preset.
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3
PNG 다운로드
Save an Instagram-ready post image.
Instagram post sizing tips
Square works for general posts, portrait gives more feed space, and landscape is useful for wide photos. Fit mode prevents cropping; fill mode creates cleaner edge-to-edge posts.
Frequently asked questions
Which sizes are included?
The tool includes 1080 x 1080 square, 1080 x 1350 portrait, and 1080 x 566 landscape.
Are my images uploaded?
No. Your image stays in your browser and processing runs locally.
Which format should I download?
PNG is a reliable choice for previewing and uploading the resized design.
Instagram Post Resizer last reviewed: Jun 28, 2026.