lumenfix
Phone shot to widescreen wallpaper
Transform a vertical lake capture into a 16:9 desktop wallpaper with continuous pines and mountain ridges without distortion.
Free · no account required
AI Image Extender
Open tight photos into wider frames without cropping or sacrificing composition. Choose 1:1, 4:5, 16:9, or drag a custom canvas — AI outpainting continues light and texture while your subject stays locked.
- Free daily credits · No signup
- 0% Subject alteration · Locked center
- 1:1 · 4:5 · 16:9 · Custom canvas
- Seamless lighting & texture continuity
Why choose smart uncropping over forced stretching
Forcing a 4:5 vertical photo into 16:9 distorts the subject; tight secondary crops lose context. Lumenfix uncropping preserves your entire original and naturally extends the missing margins.
01
Center subject remains locked
Every single uploaded pixel stays in its exact original place. New scenery, ground, or background only fills the expanded canvas borders.
02
Physical light and texture continuity
The algorithm reads edge gradients, grain, and lighting — snow texture, wood grain, or sunset dusk — seamlessly continuing them instead of pasting a flat backdrop.
03
Built for every digital canvas
Instantly switch between 1:1 avatar squares, 4:5 social feeds, 16:9 widescreen, and 9:16 vertical stories, or drag freeform canvas handles to any custom spec.
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Optional prompt guidance
In low-light or abstract scenes, add a short prompt (e.g. “continue oak hardwood”, “clear winter sky”) to guide new borders without altering the original subject.
Common frame extension scenarios
The same authentic photograph, with more breathing room and cinematic air. Here are the most frequent workflows.
Social covers and feed posts
Keep the facial portrait locked while extending background room to fit 1:1 profile crops or 4:5 editorial posts.
Hero headers and marketing banners
Extend commercial photography into wide 16:9 or custom web hero units without costly restaging.
Ecommerce product margins
Push packaging or bottles inward to create clean margin for typography, badges, and pricing layouts.
Group shots cropped too tight
Keep everyone comfortably centered while smoothly reconstructing cut-off table edges, walls, or ambient depth.
Interior and architectural stills
Expand living-room or real estate photos into wide banner units while preserving genuine perspective.
Travel photography to widescreen stories
Open vertical beach or street captures into cinematic 16:9 with smooth, uninterrupted horizons.
How to extend an image
Three simple steps. Your original photograph is always the protected heart of the new frame.
Step 1
Upload your photo
Drop a JPEG, PNG, or WebP up to 20 MB. You can also paste directly from your clipboard.
Step 2
Select target aspect ratio
Choose 1:1, 4:5, 16:9, 9:16, or drag the canvas handles. Only the newly created margin is outpainted.
Step 3
Generate and download
Compare the seamless edge transition with the original, then download in full fidelity.
Precise composition controls
A professional darkroom extension canvas, not an unpredictable text-to-image generator.
Presets and freeform dimensions
Standard social and display ratios are one click away; enter exact pixel dimensions when layouts demand precision.
Optional edge prompt hints
Direct the style or contents of new borders. When sky, floor, or nature textures are obvious, simply leave it blank.
Locked center subject protection
Source pixels are mathematically preserved — no hallucinated face changes, no character distortion, zero subject alteration.
Connected post-processing workflow
Sharpen first with Photo Enhancer if the original is soft, or export to Image Upscaler for 4K/8K ultra-resolution.
What it does not do (honest boundaries)
Understanding engineering boundaries ensures consistent, dependable results.
It does not stretch the original
If you need greater pixel density within the same frame, use Image Upscaler. Extending only adds outward canvas.
It does not generate from thin air
Every project begins with a real photograph. New edges logically extend existing context rather than hallucinating random art.
It does not displace the subject
Faces, products, and architecture remain anchored to their original coordinate matrix.
It does not invent missing people or logos
Outpainting extends surroundings; it cannot reconstruct specific unphotographed individuals or trademarks.
Built for creative professionals
Designed for anyone who already has the right photo and needs the right canvas without compromising realism.
Content creators and storytellers
Effortlessly convert vertical clips into 16:9 thumbnails or 1:1 square feeds without cropping key focal points.
Graphic and layout designers
Fit client stills into wide web headers, slide decks, and hero banners with natural negative space.
Ecommerce and marketplace brands
Add clean margins around product catalog items to meet marketplace listing guidelines.
Photographers and wallpaper curators
Fill desktop displays with vertical landscape shots without awkward black letterboxing.
Need further adjustments?
The new edges are in. If you also want it sharper or larger, these tools continue from the same file:
