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Social Post Image Generator

Size-ready images for posts, stories and ads across platforms.

On the free plan, generations are queued behind Pro and Max members and take at least 40 seconds. Upgrade for priority and faster results.

Reading your prompt

See what the social post image generator can do

Scroll-stopping visuals sized for social.

Three simple steps

1

Pick a platform format

Choose feed, story or ad so the image is built at the right size from the start.

2

Describe the post

Write the scene, message vibe and colors you want the image to carry.

3

Generate and download

Create a few options, pick the strongest, and save it ready to upload.

Convert your result

Need the finished image in another format? Convert it in the same workspace.

Want the detail? Read How the image model works, or see the img.now image model.

One scene, every platform

Each social network wants a different shape, and posting a square image into a vertical story leaves ugly bars or harsh crops. The social post generator solves this by building your image at the exact ratio you choose before it ever renders. That means a clean feed post, a full bleed story and a wide ad can all share one idea without distortion. Our social media imagery guide covers how to plan a set.

Sizing for each format

Getting the ratio right is half the battle. A square fits most feeds, a tall nine by sixteen frame fills stories and reels, and a wide frame suits ad placements and link previews. Choosing the shape first lets the model compose for it, so your subject sits in the safe zone rather than getting clipped. The aspect ratio guide lists the exact numbers.

FormatAspect ratioWhere it shows
Feed post1:1 squareInstagram, Facebook
Story or reel9:16 tallStories, TikTok, Shorts
Portrait post4:5 uprightInstagram feed
Ad or link card16:9 wideBanners, link previews

Example social prompts

Keep room near the edges for text you add later. These recipes name a format, a scene and a mood so the result fits its slot.

Square feed post, flat lay of summer skincare bottles on pastel paper, soft daylight, airy minimal style, space at top for text
Tall story image, a hiker on a misty mountain ridge at sunrise, cinematic, vertical framing, copy space at bottom
Wide ad banner, a steaming bowl of ramen on a dark wooden table, moody warm light, left side clear for a headline
Portrait post, a cozy autumn coffee scene with a knit blanket, warm tones, lifestyle style

Build a consistent campaign

Lock a color palette and style, then reuse it across formats so your grid looks intentional. Pair these visuals with marketing copy using ideas from the marketing imagery guide, or start from a layout in our social media templates. For one off scenes, the main generator gives you full freedom over every detail. Finish your posts by adding a logo or caption with the image overlay tool, building a YouTube thumbnail, or combining shots into a photo collage.

Questions about the social post image generator

Which sizes does it support?
It covers the common shapes: square feed posts, tall stories and reels, and wide ad banners. You choose the format before generating so nothing gets cropped awkwardly.
Can I make a matching set?
Yes. Use the same style and color words across formats to produce a feed post, a story and an ad that clearly belong to one campaign.
Do I add the text myself?
These images focus on the visual. Add headlines and captions in your posting app or design tool so text stays crisp and editable.
Try Social Post Image Generator