ai image extender
AI Image Extender
Extend the edges of an uploaded image into a new canvas size while preserving the original subject, lighting, style, and composition.
Tool summary
- Input
- Image upload required, up to 1 input image
- Model
- gpt-image-2
- Default aspect ratio
- 16:9
- Output
- Extend image
Uncrop Images Without Stretching
The AI Image Extender is built for photos that need more canvas, not a warped resize. Upload a picture, choose the target aspect ratio, and the tool prompts the model to outpaint new edge detail while preserving the original subject, lighting, texture, and composition.
Resize Photos for Social Posts, Ads, and Thumbnails
A single image often needs to work across many formats: square marketplace thumbnails, 4:5 feed posts, 9:16 stories, 16:9 video covers, and ultra-wide website heroes. Instead of cropping away important detail, expand the background into the format you need.
Control What Appears in the Expanded Canvas
Use the optional prompt to guide the newly generated space. Ask for more sky, a wider studio surface, extra room for headline text, a continued wall texture, or a natural scenic background. Keep the prompt focused on the new canvas area so the original photo stays stable.
Outpainting for Product Photos and Creative Campaigns
Product teams can turn tight catalog shots into hero banners, ad layouts, and storefront images. Creators can reframe portraits, travel photos, and artwork for platform-specific crops while keeping the source image recognizable.
How the AI Image Extender Works
Upload one image, pick the target size and the direction you want to extend, and add a short prompt to guide the new space. Your result matches the aspect ratio you chose and fills in believable surrounding detail instead of stretching your photo.
Tips for Better Uncrop Results
Start with a clear image, choose the final platform size before generation, and describe only what should appear beyond the current edges. For best subject preservation, keep Preserve original center enabled and avoid prompts that ask the model to redesign the main subject.
AI Image Extender examples
Example presets
- Square to storyExtend the background above and below the original image with matching lighting and realistic detail.
- Portrait to YouTube thumbnailExtend left and right with coherent background detail and leave clean space on one side for a title overlay.
- Product hero bannerAdd polished negative space around the product with realistic surface, shadows, and brand-safe composition.
- Instagram portrait cropExtend the canvas vertically with matching background texture and balanced subject framing.
- Marketplace landscapeCreate realistic surrounding context while keeping the product shape, color, and details intact.
- Cinematic wide sceneContinue the scene naturally with consistent horizon, depth, weather, lighting, and camera perspective.
Controls and settings
- Target sizeSupports 1:1, 4:5, 9:16, 16:9, 21:9, 3:4, 4:3 with 16:9 as the default.
- Extension directionChoose from Auto, Left and right, Top and bottom, All sides.
- Edge styleChoose from Natural match, Clean product space, Editorial background, Scenic continuation.
- Preserve original centerKeep the original photo centered and unchanged inside the new canvas.
- New-space promptDescribe what should appear beyond the current image edges.
- OutputsGenerate 1 to 4 variants. Default: 1.
Use image extending responsibly
Only upload images you have the right to edit. Avoid using outpainting to mislead viewers about news events, identity, product condition, or factual context.
Frequently asked questions
What is an AI image extender?
An AI image extender expands an uploaded photo into a larger or differently shaped canvas. Instead of stretching pixels, it generates new surrounding detail that matches the original image.
Is uncrop image the same as image extender?
They describe the same core task. Uncropping restores or invents space beyond the current image edges, while image extending or outpainting expands the canvas to a new aspect ratio.
Will the tool stretch my original image?
The prompt is designed to avoid stretching or warping the uploaded image. It asks the model to preserve the original content and generate new detail only in the expanded area.
Which aspect ratios can I choose?
You can choose from 1:1, 4:5, 9:16, 16:9, 21:9, 3:4, and 4:3 target sizes for common social, ecommerce, thumbnail, portrait, and banner workflows.
Can I describe what should appear in the new space?
Yes. Add a short prompt for the newly generated area, such as more sky, a wider studio backdrop, a continued street scene, or empty space for headline text.
What does Preserve original center do?
It keeps your uploaded photo anchored and unchanged inside the new frame. This is useful when preserving a person, product, logo, or important composition detail matters.
What images work best for AI outpainting?
Clear photos with visible edge context usually work best. Images with consistent lighting, simple backgrounds, natural perspective, and uncluttered subject edges give the model better clues for the expanded canvas.
Can I use the AI Image Extender for product photos?
Yes. Product photos can be extended into banners, marketplace crops, and ad formats. Keep the prompt focused on the background or surface so the product itself remains recognizable.
Does this replace a full image editor?
No. This page is intended for fast AI outpainting and aspect-ratio reframing. Detailed retouching, masking, and pixel-level corrections may still need a dedicated editor.