--- title: "AI Image Extender: Extend a Photo to Any Ratio | Potto AI" description: "Use the AI image extender to expand image edges to 1:1, 3:4, 4:3, 9:16 or 16:9. Potto AI adds new scene around your photo instead of cropping it." canonical: "https://potto.ai/ai-image-extender" language: "en" dateModified: "2026-10-25" --- # AI Image Extender Widen or lengthen any photo with this AI image extender. It adds new scene around your original. ## AI image extender before and after A lake photo extended from 4:3 to 16:9. The outline marks the original frame. ![Original 4:3 lakeside mountain photo before the AI image extender widened it](https://potto.ai/images/uncrop-lake-4x3-before-1080.webp) *Original · 4:3* ![Lakeside park and mountains extended from 4:3 to 16:9 with the AI image extender](https://potto.ai/images/uncrop-lake-16x9-1080.webp) *Extended · 16:9* ### What stayed The shoreline, trees and reflection stay in place. The outline shows where your original ends. ### What the extender added Sky, slopes and water continue on both sides. The horizon runs on without a step. ### What to look for Look for repeated textures and bent lines. Judge the result at the size you will use. ## Where an image extender fits Pick the ratio for the placement first. ### Banner or video thumbnail *4:3 → 16:9* A wide ratio adds land and sky on both sides. Keep the subject put and use the new width for a headline. At 16:9 the canvas is 1280 × 720 or 1920 × 1080. ![A desert landscape in a 16:9 frame](https://potto.ai/images/uncrop-desert-banner-16x9-1080.webp) ### Story or vertical cover *3:4 → 9:16* A tall ratio adds ground and sky above and below. Check the horizon and tall subjects. At 9:16 the canvas is 720 × 1280 or 1080 × 1920. ![A 3:4 mountain photo beside the same peak extended to 9:16 with more sky above and snow below](https://potto.ai/images/uncrop-mountain-3x4-to-9x16-1080.webp) ### Square post *16:9 → 1:1* A square adds height to a wide image, so floors and ceilings extend. Check straight lines at the new top and bottom. At 1:1 it is 1280 × 1280 or 1920 × 1920. ![A living room in a 1:1 frame](https://potto.ai/images/uncrop-living-room-square-1080.webp) ## How to use the AI image extender Three controls let you expand image width or height. ### 1. Add your photo Drop in your file. The stage shows where the original sits. ### 2. Pick ratio and size Choose a ratio and a size. The red area is what gets added. ### 3. Run it and review the join Check the join against the original boundary, then download. ## What the AI image extender does It changes the frame, not your image. ### Choose a ratio instead of a crop Start from 4:3 and extend to 16:9, 9:16, 1:1 or 3:4. The AI image extender adds the missing width or height. - Wide, tall and square from one image - The subject stays where you put it ![A desert photo extended from 4:3 to 16:9 for a website banner](https://potto.ai/images/uncrop-desert-banner-16x9-1080.webp) *Extended to 16:9 for a banner* ### Your original frame stays centered The image scales to fit and sits in the middle. Only the area around it is generated. A narrow blended band smooths the join. - The original stays in the middle - Show the boundary to check the join ![Lakeside park and mountains extended from 4:3 to 16:9 with the AI image extender](https://potto.ai/images/uncrop-lake-16x9-1080.webp) *Original kept, both sides added* ### New areas follow the light The extender continues sky gradients, floor lines and shadows. Review the join for steps and bent lines. - Straight lines should run past the edge - Light direction should match the original ![A living room extended from 16:9 to 1:1 with the ceiling and floor added](https://potto.ai/images/uncrop-living-room-square-1080.webp) *Interior extended to 1:1* ### Sized for where it will run Pick Standard or HD for a banner, slide or story. The Generate button shows the credit cost first. - Standard and HD for every ratio - Credits shown before you generate ![An aerial wave photo extended to 16:9 for a slide background](https://potto.ai/images/uncrop-aerial-wave-slide-16x9-1080.webp) *Slide background, 16:9* ## Keep exploring Potto AI Need a different change? These tools start where the image extender stops. - [AI Image Upscaler](https://potto.ai/image-upscaler.md): Add pixels when the frame is already right - [AI Background Remover](https://potto.ai/background-remover.md): Lift the subject off its background - [AI Image Editor](https://potto.ai/ai-image-editor.md): Edit one area with a short prompt - [Image Templates](https://potto.ai/image-templates.md): Turn a photo into sketch or pop art - [AI Image Generator](https://potto.ai/ai-image-generator.md): Start a new image from a prompt - [AI Watermark Remover](https://potto.ai/watermark-remover.md): Remove a mark from your own image ## AI Image Extender FAQs What the AI image extender does, which ratios it supports and what to check. ### What is an AI image extender? An AI image extender adds new image area around a photo. It keeps your original in the middle and generates the rest. Some people search for it as expand image or uncrop. The added area is invented, not recovered. ### What does AI expand image mean? AI expand image means growing a photo past its edges with a model. The AI image extender does exactly that. You pick the ratio, and it draws the missing area. ### Can an AI image extender recover what was cut off? No. It generates the added area from the visible image. Treat it as a plausible guess, not the real scene. ### How is an image extender different from an upscaler? An image extender changes the shape of the frame. An [upscaler](https://potto.ai/image-upscaler.md) adds pixels to the same frame. Extend when cropping would lose content. Upscale when the picture is right but too small. ### Which files, ratios and sizes work with the AI image extender? Upload JPG, PNG or WebP, 20 MB at most. Pick 1:1, 3:4, 4:3, 9:16 or 16:9. Standard has a 1280-pixel long edge. HD has 1920. ### What photos work best with an AI photo extender? Skies, water, walls and fields extend well. Fences, windows and lettering need a closer look. So do people cut off at the frame. ### Will the AI image extender change my original? It keeps your original centered. Faces and straight lines should stay as they are. Exact pixel-for-pixel output is not guaranteed. ### What should I check after I extend an image? Check the join first, then the new edges. Follow horizons, reflections and shadows across it. Download when the seam is invisible at your size. ### Why is Generate unavailable? Generate is off when the image already has the selected ratio. Pick a different ratio. A bigger gap between two shapes means more new area. ### How much does the AI image extender cost? It costs 81 credits per image. You see the price on Generate before you confirm. A failed task releases its reserved credits. [Pricing](https://potto.ai/pricing.md) lists plans and packs. ### Do I need an account to extend an image? You can upload an image and try the controls without one. Generating and downloading need an account. Your image and settings stay after sign-in. ### Can I use extended images commercially? Yes, if you are on a paid plan. Free plan images are for personal use. There is no Potto watermark. Extend only images you own or may edit. Do not pass off the new area as the real scene. ## Extend your photo to the ratio you need Upload an image, pick a ratio and check the join before you download.