AI Expand Image (Uncrop)
Extend any photo beyond its original borders. Choose a direction, pick an expansion amount, and download the result in seconds. Completely free.
PNG, JPG, WEBP up to 10 MB
Choose ImagePercentage added to the image's width (horizontal) or height (vertical). "All sides" applies to both.
How Image Expanding Works
Three steps from upload to a wider image.
1. Upload Your Image
Drop in any JPG, PNG or WEBP image up to 10 MB. The original is never altered - only the expanded result is returned.
2. Choose Direction and Amount
Pick which side to expand (or all four at once) and how much to add - 10%, 25%, or 50% of the original dimension.
3. Download the Result
The server extends the canvas, blends the fill from the edge colours, and returns a PNG. Download instantly - no waiting, no credits.
When to Use Image Expand
Common situations where extending an image saves time.
How Outpainting and Edge-Fill Actually Work
Every uncrop tool answers the same question: what would the camera have captured just outside the frame? The answer is built from context sampling. The algorithm reads a band of pixels along the edge you are extending - their colours, brightness, and how they trend toward the border - and uses that strip as the statistical recipe for the new canvas. A photo whose right edge fades from pale blue sky into haze produces a fill that continues exactly that gradient; a studio shot on seamless white produces clean white.
The second ingredient is seam blending. If the new region simply butted against the original, your eye would catch the hard line instantly, because human vision is extremely sensitive to abrupt frequency changes. So the fill is feathered across the boundary: pixels nearest the original image stay close to the sampled values, while pixels further out relax toward the average tone, with a gentle blur smoothing the transition. Full diffusion-based outpainting models go one step further and hallucinate new objects conditioned on the whole image, but for backgrounds, sky, water, walls, and studio sweeps, edge-fill produces a result that reads as natural at a fraction of the cost - which is why this tool can stay free and instant.
Where expanding shines
The classic use case is turning a portrait shot into a landscape wallpaper: extend left and right by 50% and a 3:4 phone photo becomes a widescreen desktop background without touching the subject. Product photos benefit from the opposite move - adding whitespace around a tightly framed item gives designers room for headlines, price tags, and banner layouts without re-shooting. And old photos that were cropped or scanned too tight get their breathing room back: expand all sides by 10-25% and the awkward edge-to-edge framing relaxes into something printable.
What fails, and how to work around it
Edge-fill extends tones, not structure. Faces, limbs, or text touching the border are the worst case: the fill will smear skin tone or letterforms outward instead of completing them. Complex repeating patterns - brick, fabric weave, foliage - also break down, because the fill cannot reproduce the pattern's rhythm. The fixes are simple. First, crop a few pixels off the problem edge so the border lands on simple background before you expand. Second, expand in two 25% passes rather than one 50% jump; each pass samples the freshly blended edge and stays more consistent. Third, expand away from the subject - if the person stands on the left, extend right. When the result needs more resolution for print or wallpaper use, finish with the AI Image Upscaler, and if the final canvas must hit exact pixel dimensions, pass it through the Image Resizer last.
Frequently Asked Questions
- What is image outpainting or uncropping?
- Outpainting extends an existing image beyond its original borders. Instead of cropping content out, you are adding new canvas area and filling it to blend with the original edges.
- How does the free expand tool work?
- The tool samples colours along the edges of your image, extends the canvas in the chosen direction, then fills the new area with a soft blend from those edge colours. A gentle blur is applied to soften the transition.
- What image formats are supported?
- Upload JPG, PNG, or WEBP images up to 10 MB. The expanded result is always returned as a PNG file with a white background.
- Is the tool completely free?
- Yes. The tool runs on our servers with no external API calls or AI credits. No account required - just upload, choose settings, and download.
- What is the maximum image size?
- Upload images up to 6000px per side and 10 MB file size. Very large images may take a few seconds to process.
- What images work best?
- Images with consistent colour near the edges work best - solid backgrounds, smooth color transitions, sky, water, or simple textures. Busy edges with many colour changes may show more visible seams.
Image Expand Workflow
Use image expansion when the image is good but the canvas is wrong.
Create banner space
Expand left or right to make room for headlines, buttons and ad copy without covering the main subject.
Convert formats
Turn square images into wide banners or vertical posts while keeping the subject in frame.
Repair tight crops
Add breathing room around faces, products and objects that were cropped too close to the edge.
Make the expanded image publishable
Use simple edges
Sky, walls, grass, fabric and studio backdrops expand more cleanly than hands, faces, signs or crowded street scenes.
Protect text and labels
Avoid expanding across logos, product labels or important text. If the edge contains text, crop inward first or rebuild it in the AI Image Editor.
Finish in order
Set the final ratio, use the Image Cropper, resize the result, then use the Image Compressor.
Where expansion helps most
Ads and landing pages
Add space beside the subject for a headline, button or product benefit without covering the image.
Product galleries
Create a cleaner frame around products photographed too close to the edge so category grids feel consistent.
AI-generated images
Fix awkward framing without regenerating the whole image, then use the Image Resizer for final placements.
Review the result before exporting
Scan corners and borders
Repeated textures, warped lines and odd dark patches usually appear at the expanded edges first. Check the full frame, not only the center subject.
Keep changes small when needed
If the edge is complex, expand in a smaller amount. Large extensions make the AI invent more detail and increase the chance of visible artifacts, especially around furniture, fingers, signs and patterned backgrounds.
Save a clean fallback
Keep the original crop and the expanded version separate. If the expanded file looks wrong in a real layout, ad preview or marketplace listing, you can return to the cleaner source quickly.
Plan for the final layout
Leave text safe areas
If the image will carry a headline or button, add canvas on the side where the copy will sit and keep the subject away from that space.
Match a campaign set
Expand related images to the same ratio so ads, social posts and landing-page blocks feel like one consistent set.
Check mobile crops
A wide expanded image may still crop tightly on mobile. Preview the final asset in narrow layouts before publishing.