How to preview an Instagram post in the feed

- Add your picture Open the free Instagram post preview and pick, drop or paste your picture. Add more to make it a carousel.
- Write the caption Type or paste it and see where Instagram cuts it with “…more” as you write.
- Check it in the feed Look at it on the phone with your name and picture, in light and dark mode. The checks tell you if a picture is too wide, too tall or too small.
- Share the preview if someone needs to approve it Download a screenshot of the preview for a client or a teammate, then post from your phone.
Nothing is uploaded: your picture stays on your device. Posting a carousel? The Instagram carousel preview lets you swipe it as your followers will, and the Instagram safe zone checker shows what the buttons cover on a reel or a story.
How to see how a post will look on your grid
Your profile shows every post as a 3:4 rectangle, cut from the middle of the picture. A 1080 × 1440 px post shows whole there. A 4:5 post loses a strip at the top and bottom, and a square one at the sides, so a word near the edge of a cover can be cut.
- Open the free Instagram feed planner.
- Add your last posts, then the new one, and drag it into place.
- Look at the top rows together: does the new post fit, and do its words survive the 3:4 crop?
Already posted it and the grid looks off? Long-press the post on your profile and tap Reorder grid to move it. More in how to preview your Instagram profile.
How to preview a post in the Instagram app
Instagram has no “preview in the feed” button, but three things in the app give you a second look before your followers see it.
Save it as a draft
Go back out of a post you’re making and Instagram offers to save it as a draft. Open it again later, with fresh eyes, before you share. Drafts stay on your phone.
Schedule it
- Make your post as usual and, on the last screen, tap Advanced settings.
- Turn on Schedule this post and pick a date and time, up to 75 days ahead.
- Go back and tap Schedule.
Scheduled posts wait in Scheduled content in your profile menu, where you can look at them again or move them. Scheduling is for professional (business and creator) accounts, as reported by TechCrunch.
Try a reel on people who don’t follow you
Trial reels go to non-followers first. About a day later you see how it did, and you can then share it with everyone, or let Instagram share it if it does well in its first 72 hours (Meta). It works for reels, not for photo posts or carousels.
What to check before you post
- The first line of the caption. The feed shows about two lines, roughly the first 125 characters, then “…more”. Put the reason to read on in them.
- The crop. In the feed a post can be anything from 3:4 to 1.91:1; on your grid it’s always 3:4. Keep faces and words in the middle.
- The cover of a carousel. It’s the only slide most people see. One big line beats a paragraph. See how to make an Instagram carousel.
- Light and dark. Check both; a white picture on a white feed loses its edges.
- Hashtags. Instagram has been moving to a limit of five per caption, so pick the five that describe the post best.
- Alt text, tags and place. Under Advanced settings you can write alt text for people who use screen readers.
- Bold or italic words. Instagram has no formatting buttons. To add them, use the Instagram bold text tool.
Instagram post sizes and limits
| What | Size or limit | Good to know |
|---|---|---|
| Portrait 3:4 | 1080 × 1440 px | Shows whole on your grid |
| Portrait 4:5 | 1080 × 1350 px | Loses a strip top and bottom on the grid |
| Square | 1080 × 1080 px | Loses a strip at each side on the grid |
| Landscape | 1080 × 566 px (1.91:1) | Small in the feed |
| Carousel | Up to 20 slides | The first slide sets the shape for all |
| Caption | 2,200 characters | About 125 show before “…more” |
| Hashtags | 5 per caption | Rolling out since December 2025 |
From Metricool (21 January 2026), Sendible (17 April 2026) and Social Media Today (18 December 2025).
Example: a pre-post checklist you can share
Posting the same carousel on LinkedIn too? Check it with the LinkedIn post preview. More in Instagram guides.


