AI Image Extender
Uncrop and extend photo backgrounds to any aspect ratio instantly.
Upload your photo here
Drag & drop your image file, or click to browse. Supports JPG, PNG, and WebP up to 25MB.
About AI Image Extender
Extend photo backgrounds to standard aspect ratios (16:9, 4:5, 1:1) or custom ratios instantly. Free online AI uncrop tool that runs 100% in your browser for maximum privacy. Enhance layout bounds, mirror edge details, blend border gradients, and apply film grain naturally without quality loss.
Need to adapt a photo for Instagram (4:5 or 1:1) or YouTube (16:9) without cropping the main subject? This AI Image Extender uses advanced edge synthesis and blending techniques to outpaint background details, providing a seamless extension.
Everything happens client-side in your browser. No files are uploaded to third-party servers, ensuring complete privacy, zero latency, and 100% free unlimited usage.
How to Extend Photo Background Online
- Upload your photo (JPG, PNG, or WebP)
- Select a target aspect ratio (16:9, 4:5, 1:1) or set custom dimensions
- Choose an expansion mode (AI Generative Expand, Blurred Depth, etc.)
- Adjust image scale, positioning, feathering, and grain filters
- Click "Generate AI Extension" and download the uncropped photo
Key Features & Outpainting Modes
- AI Generative Expand: Synthesizes background textures by mirroring border pixels, blurring them for depth-of-field, and applying film grain to blend boundaries.
- Blurred Depth Extend: Fills the background with a larger blurred copy of the original image, generating a modern bokeh backdrop.
- Border Color Gradient: Creates a smooth multi-stop gradient sampling dominant edge colors for dynamic blending.
- Solid Background: Fills the extended boundaries with any color or samples the dominant color automatically.
- Transparent Margins: Leaves empty areas transparent (ideal for PNG layout modifications).
Why Use This Web-Based Extender?
- Adapt images to social media guidelines without cropping out important subjects.
- Total data privacy: processing runs locally in browser Canvas; zero network traffic.
- Custom scale, translation offsets, and drag-and-drop panning control.
- Completely free, no login or registrations, and no watermarks on downloaded files.