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Instagram post preview

See your Instagram post before it goes live: your photo in 4:5 or square, your username and the caption cut where Instagram adds "more" after about 125 characters. Switch to the grid view to see how it sits next to your other posts.

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How to use the Social Post Previewer

  1. 1Type or paste your post text, and add your name, handle and profile photo if you like.
  2. 2Add an image from your device. It's shown only in your browser and never uploaded.
  3. 3Switch between the networks to see each mockup and where "see more" cuts the text.
  4. 4Fix the first lines until the hook shows before the cut-off, then schedule the post with Join Postly.

Frequently asked questions

Where does Instagram cut a caption with "more"?

After about 125 characters, or at the second line break if that comes first. The preview cuts your caption at the same point, so you can check the hook still makes sense on its own.

Should Instagram posts be square or 4:5?

4:5 (1080 × 1350 px) shows bigger in the feed than square, so it usually gets more attention. The profile grid now shows posts as 3:4 rectangles, so keep key details away from the top and bottom edges.

Do I need to log in to Instagram to use the preview?

No. Nothing connects to Instagram: you type the caption and pick a photo, and the mock-up is drawn in your browser. Your photo isn't uploaded.

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