AI image expand
All four sides at once · change the ratio by expanding, then cropping · computed entirely in your browser, nothing uploaded while signed out
Picture too narrow, composition too tight? TutuEdit's AI expand stretches the image outward on all four sides at once to enlarge the canvas, no manual stitching; to switch to portrait or square, expand and then crop to the ratio you want.
The method: type a pixel count in the AI panel, all four sides grow by that much, and run it. The new area is filled by stretching the outermost row of edge pixels outward — no mirroring, no fade, and no newly generated content. This step runs entirely in your own browser and never sends the image out. The pixel count has no upper limit and a minimum of 1; the real ceiling is the browser's limit on canvas dimensions, which the browser sets. It suits best images whose edges are already flat — solid backgrounds, gradients, clean sky and walls: there the seam is almost invisible, and because it all runs locally there is no cloud queue to wait on. Edges with detail or texture get stretched into visible streaks, and such images usually need touching up afterwards. The expanded image stays in the editor, ready for cropping, text, color, and export.
Key features
All four sides at once
Fill in one “Each side” pixel value and top, bottom, left and right all grow by that much; to change the orientation, expand and then crop.
Processed locally · not uploaded while signed out
Edge extension is computed in the browser, and this step never sends the image out.
No cap on the pixel count
Minimum 1 pixel and no maximum; the ceiling is the browser's limit on canvas dimensions.
Keep editing after
The result opens in the editor to crop, add text, color and export.
How to use
- 1 Open an imageDrag the image onto the area above (or click to choose); it opens in the editor — on a computer the AI panel opens automatically, on a phone tap “Layer” in the bottom bar to open the panel drawer, then switch to the “AI” tab (the “AI” button in the middle of the bottom bar opens the assistant chat).
- 2 Set the bordersIn the AI panel's “Expand Image” card, fill in how many pixels to add under “Each side”; all four sides grow together.
- 3 Run the expansionOne click fills it in, visible immediately; Ctrl+Z if you want a different number.
- 4 Export or saveExport PNG / JPG / WebP. A local draft is saved automatically as you edit; once you sign in, your work is also saved automatically to your own cloud projects.
FAQ
- Does AI expand upload my image?
- Not uploaded. The whole expansion is computed in your own browser — stretching the edge pixels outward is local pixel work, and this step doesn't send the image out. (Once you sign in, work in the editor is saved automatically to your own cloud projects, so you can carry on from another device.)
- How is expanding different from resizing the canvas?
- Changing the canvas size only adds blank space around the edges; expanding stretches the edge pixels outward to fill that new area — solid or flat edges show no seam, detailed edges turn into streaks. Note the difference: what gets filled in is a continuation of the original edge, not newly invented content.
- Can I turn a landscape into a portrait?
- Yes, with one extra step: expand adds the same pixels on all four sides, so expand enough room top and bottom first, then crop off the left and right — the landscape becomes a portrait; for portrait to landscape, do the reverse.
- Is AI expand free?
- Free, no sign-up, no usage limit. Expansion runs entirely locally, consumes no cloud quota, and needs no account.
Try AI image expand now
Local edge extension · nothing uploaded while signed out (once signed in, work saves to your cloud projects) · no install, no sign-up, no limit