Website hero banners
Turn a tighter source image into a wider composition with space for headline and call to action.
AI Image Expander
AI Image Expander
Upload an image, choose a larger canvas, and generate believable content beyond its borders for banners, social formats, and product layouts.
Have a stray person or sign at the edge of the photo? Take it out first with the AI object remover, then expand the cleaned image here.
Image Expander: supported inputs and settings
Inputs and settings
- Reference image (required): JPEG, PNG, or WebP. Maximum 30MB.
- Format: JPEG, PNG, WebP
- Canvas: 256–1536px per side
- Input
- One image with a clear subject and visible border context.
- Output
- An expanded image up to 1536 x 1536 in JPEG, PNG, or WebP.
How to use AI Image Expander
01
Upload your source image
Choose an image with a clear focal subject and enough visual context near every edge.
02
Set the output canvas
Enter the target width and height, then keep the new aspect ratio aligned with the final destination.
03
Generate and inspect the seams
Check repeated patterns, horizons, shadows, and object edges before downloading the expanded image.
AI Image Expander use cases
Social format adaptation
Extend landscape or portrait media into a square or alternate platform ratio.
Product layout space
Add believable background room around a product for campaign copy and pricing elements.
Composition repair
Restore breathing room around a subject that was cropped too close in the original.
Input requirements and limitations
Prepare your input
Keep the focal subject away from cut edges
Outpainting works best when important faces, hands, products, and text are fully visible in the source.
Use consistent border context
Clean skies, walls, floors, and natural textures give the model stronger clues for expansion.
Know the limits
Complex backgrounds may repeat
Crowds, architecture, typography, and strong geometric patterns can create visible seams or duplicated objects.
New content is inferred
The expanded area is generated, not recovered from the original photograph. Do not treat it as documentary truth.
AI Image Expander vs alternatives
| Option | Best for | Key difference |
|---|---|---|
| Image Expander | Adding canvas around an existing image | Generates new surroundings while keeping the source in the composition. |
| Image Upscaler | Increasing resolution | Preserves the existing boundaries and focuses on detail enhancement. |
| GPT Image 2 | Broader creative edits | Can replace or restyle content inside the frame, not only beyond the edges. |
Frequently asked questions
Outpainting generates new visual content beyond the original image boundaries to create a larger composition.
The workflow aims to preserve the source region, but blending near borders can introduce small changes. Compare the result before use.
Images with a clear subject, coherent lighting, and simple edge context generally produce the most natural extensions.
Each expansion uses 3.2 credits at the default settings. The credits are shown on the Generate button before you start. Signing in costs nothing and no payment is taken at sign-in. The 3 welcome credits for new accounts only cover one GPT Image 2.5 image at 1K, so they do not cover this image. Credits start at $9.99/month for 300 credits on the Starter plan (cancel anytime), or $19.99 one-time for a 450-credit pack that never expires.
Yes. Choose a canvas ratio that creates intentional copy space, then inspect the extended background at desktop size.