ConvertPort
Free browser-based post image maker

Instagram Post Image Maker

Create a polished Instagram carousel with the right ratio for every slide. Crop, rotate, enhance, reorder, and export up to 20 images at 1080 px wide.

Correct post sizesMagic enhancementPrivate on-device editing
Private, guided image studio

Prepare your post images

Everything in this editor runs on your device. Your images never leave your browser.

1. Choose a post shape
0 of 20 imagesCurrent platform carousel limit

Resize images for Instagram without losing control of the composition. Choose one ratio for the full carousel, then position, rotate, and enhance every slide separately before downloading an ordered, upload-ready ZIP.

Current Instagram post image sizes

Instagram's official photo guidance keeps images at their original resolution up to 1080 px wide when the ratio is between 1.91:1 and 3:4. The 3:4 portrait option is the tallest current feed photo, while 4:5 remains a common compatible choice for posts and creative workflows.

Post shapeRatioExport sizeBest for
Portrait 3:43:41080 × 1440Current tallest supported feed photo
Portrait 4:54:51080 × 1350Widely compatible portrait posts and ads
Square post1:11080 × 1080Classic grid and carousel look
Landscape post1.91:11080 × 566Wide scenes and horizontal compositions
Read Instagram's official image guidance

JPG or PNG for social posts?

JPG is the recommended default for Instagram photographs because it keeps files compact at high visual quality. PNG is useful for screenshots, typography, and designed graphics, although the platform may recompress the upload. ConvertPort exports both at exactly 1080 px wide.

How many images can a post include?

Instagram expanded carousel posts to up to 20 photos or videos. ConvertPort therefore accepts 20 images for one carousel and keeps them numbered in the chosen order. Some publishing APIs and older app versions may still expose lower limits.

How to make Instagram post images

  1. Select

    Choose a Instagram post shape and add up to 20 source images.

  2. Edit

    Crop, rotate, reorder, and enhance each Instagram image in the live preview.

  3. Download

    Export correctly sized files in carousel order, ready to upload to Instagram.

Post image best practices

  • Use 3:4 portrait at 1080 × 1440 px for the tallest currently supported Instagram feed photo.
  • Choose one ratio for every carousel slide to prevent the first image from forcing unexpected crops.
  • Keep text large, high contrast, and safely inside the frame so it remains readable on phones.
  • Use restrained enhancement and preview skin tones before applying the same settings to every slide.

Frequently asked questions

What is the best Instagram post image size?

Instagram's current official guidance supports photos up to 1080 px wide between 1.91:1 landscape and 3:4 portrait. Use 1080 × 1440 px for maximum portrait height, 1080 × 1350 px for classic 4:5, or 1080 × 1080 px for square posts.

How many images can an Instagram carousel contain?

Instagram carousels can contain up to 20 photos or videos. ConvertPort allows up to 20 source images and exports them with numbered file names to preserve your planned order.

Can each Instagram carousel slide use a different ratio?

For reliable results, use one ratio across the carousel. Instagram's composition behavior can depend on the first slide and publishing surface, so ConvertPort applies the selected shape consistently to every exported image.

Will Magic Enhance make my Instagram photos look artificial?

Magic Enhance uses bounded corrections based on image brightness, tonal spread, and saturation. It does not generate or replace content, and you can inspect or change every value before export.