Instagram Post Generator with Live Preview

How to use the Instagram post generator

1. Pick the post type. Product, behind the scenes, tip, customer words, announcement, question, carousel intro or Reel cover post. The detail fields change to match.
2. Add your topic and three details. The details are what make a post yours: what the product does, when the event is, the tip itself. Leave them blank and you get a shorter, more general draft.
3. Choose a tone and generate. Friendly, expert, playful or direct. You get three drafts, each opening with a different hook pattern. Regenerate for a fresh set.
4. Add a photo and pick the frame. Upload one image, or two to 10 for a carousel, and choose 1:1, 4:5 or 3:4.
5. Check the preview, then copy or download. Edit the text right under the preview, copy it when it reads well, or save a PNG of the preview to share for feedback.

A pre-publish check, not a prank tool

Many Instagram post makers in search results pitch themselves for jokes and memes. This one has a narrower job: showing you your own post before your followers see it. That is why the preview has a neutral monogram avatar, your handle, no platform logo, no verified badge and no like or follower counts to edit, and why every PNG is stamped "Preview · made with outfeed.ai".

Use it for previews and mockups of your own posts, or a client's with their say-so, such as a draft you need signed off before it goes live. Don't use it to imitate a real person's or brand's account.

What the Instagram post preview checks

The preview is built around the details that go wrong most often when a post goes live. The official figures come from Instagram's or Meta's own documentation, and where there is no official figure, the page says so.

• Crop and frame. Feed photos can be 1080 x 1080 (1:1), 1080 x 1350 (4:5) or 1080 x 1440 (3:4). The 3:4 size can only be posted from the Instagram app, because the publishing API that schedulers use stops at 4:5. If your photo doesn't match the frame, the tool tells you how much is cropped and from which sides.
• The profile grid. Since January 2025 the grid shows posts as 3:4 tiles. That ratio is widely reported, but Instagram hasn't published it on a help page. A 4:5 post loses a sliver at each side in the grid; a square post loses more.
• Where "... more" lands. Instagram doesn't publish its cut-off for post text. Meta's ads guide recommends 125 characters of primary text, so the preview marks an approximate cut at two lines or 125 characters and lets you expand it.
• The 2,200-character limit. The counter checks your text against the 2,200-character caption limit in Instagram's publishing API, counted in UTF-16 units as Outfeed's publisher checks it, so most emoji count as two or more.
• Carousels and themes. Two or more photos add slide arrows, a slide counter and dots, and every slide uses the same frame, as it does on Instagram. Switch between light and dark to check your photo against both backgrounds.

Anatomy of an Instagram post that stops the scroll

Every draft this Instagram post creator writes has the same four parts, and knowing why each one is there makes editing faster:

• The hook line. The only part most people read before the cut. It has to make sense on its own, which is why the drafts put a question, a number or a plain statement first and leave the details for later.
• The body. Your details, as short labelled lines or a list. Phones reward white space, so each point gets its own line.
• The call to action. One clear next step (save, comment, tap the link in bio) matched to the post type. A question post asks for an answer; a tip asks for a save.
• The first comment. Some accounts keep hashtags out of the main text and add them as the first comment. The preview leaves a placeholder for them.

For the writing craft behind hooks and endings, read our guide on how to write captions people actually read. If Instagram swallows your blank lines when you paste, the Instagram line break generator adds spacers that hold.

After the preview: finish the post

A post is more than its text. These free tools and guides pick up where this one stops:

• Want more short caption options for the same photo? The Instagram caption generator writes them by topic and tone.
• Build the hashtag set for your first comment with the Instagram hashtag generator.
• Planning one image across several grid posts? The Instagram grid maker splits it into tiles and previews the layout.
• Turning a panorama into a swipeable post? The Instagram carousel splitter cuts it into slides, and what an Instagram carousel is and when to use one covers the format.
• Pick your slot with our guide to the best time to post on Instagram.
• Stuck on what to post in the first place? Start with these Instagram post ideas, or browse the wider list of social media post ideas.