Extend an image canvas to any ratio
Upload a photo, choose a social preset or custom target ratio, and add centered padding without cropping. Use black, white, or brand-color padding while processing stays local in your browser.
Use this tool freeBrowser tool
Canvas extender
Runs locally in your browser. The selected image is not uploaded by this tool.
JPEG, PNG, and WebP are supported by default. Specialized converters restrict the file picker to their required input format.
How to extend an image canvas
Upload an image
Choose a JPEG, PNG, or WebP file from your device.
Set the ratio
Choose a quick ratio such as 1:1, 4:5, 16:9, 4:3, or 21:9, or type a custom ratio.
Download
Pick a padding color, preview the exact added padding, and download the new no-crop image.
Features
No-crop padding
Expands width or height to match the target aspect ratio while keeping the full original image.
Social presets and padding colors
Start from square, portrait, story, widescreen, classic 4:3, or cinematic 21:9 ratios, then choose black, white, neutral, or brand-color padding.
Local export
Uses browser File, Canvas, Blob, and object URL APIs only; no upload is required.
After this task
After this free tool, open Ai Enhance for the next AI editing workflow.
Continue with Ai EnhanceSpecifications
| Processing | Browser canvas |
| Uploads | None |
| Output | PNG, JPG, or WebP depending on browser support |
Related Magic Eraser Tools
Common questions
Will this crop my image?
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No. The tool scales nothing and only adds canvas padding to reach the target aspect ratio.
Does this generate new image content?
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No. It preserves the original image and fills the added canvas with the color you choose; it does not use AI outpainting.
Need to remove objects first?
Open Magic Eraser to clean the image before extending the canvas.
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