Clone Stamp in Photo Studio copies pixels from one part of a layer to another. It is useful when you can see a clean area that matches the texture and lighting around a blemish. For example, you can sample an unmarked patch of a painted wall to cover a small scuff, or borrow clean fabric texture to cover a speck of dust. The tool is free to use in your browser.
You choose the source and the destination. That control makes Clone Stamp useful around repeated details, such as a seam or a row of tiles. It also makes it possible to copy the wrong detail by accident. Work in short strokes and check each repair before moving on.
Step 1. Open a photo and find the area to repair
Visit the Free Photo Editing Software homepage and choose Photo Editor in the navigation or Open Photo Editor in the header. In Photo Studio, click Open a photo and load a JPEG, PNG or WebP. If the workspace already contains an image, use Open photo in the top bar. Use Fit to locate the mark and zoom in until you can see what surrounds it.
Before you paint, compare the mark with two or three nearby patches. Look for similar light, grain and surface direction. For a scuff near a window, sample from a spot with similar brightness on the same wall. A patch from the shaded side of the room may introduce a darker mark even if the paint is the same colour.
Step 2. Select the layer you want to retouch
Open Layers and select the visible, unlocked Photo layer. The tool samples and paints on the same selected photo or pixel layer. If your composition has text or shapes above the photo, keep the photo selected when you want to repair the image underneath those objects.
For a comparison you can switch on and off, select the photo and choose Duplicate in Layers. Select the copy, then make the repair there. You can use its visibility button to compare the repaired layer with the original below it. Check the target name in the tool options if you are unsure which layer will change. For a shape or text layer you deliberately want to retouch as pixels, Convert to pixels is available in the layer controls.
Step 3. Choose Clone Stamp and set a source
Click Clone Stamp in the toolbar or find it in the Filter menu. Press S to select it with the keyboard. Choose Set clone source, then click or tap the clean patch you want to copy. A marker appears over the source. With a mouse and keyboard, you can also hold Alt while clicking a source point.
Start close to the mark so the copied texture matches the surrounding area. For a hairline scuff on a wall, look just beside the scuff for an intact stretch of the same surface. Avoid sampling through the scuff itself, across a corner or from an area with a distinctive pattern that would look odd if repeated. If you change the selected layer or switch tools, set a source again before painting.
Step 4. Set brush size, hardness and strength
Set the brush Size just wider than the part you want to repair. Watch the circular cursor as you move over the photo. For a single speck, a small brush helps keep the repair away from nearby detail. A longer mark may need several strokes with the same small brush.
Hardness controls how firmly the stroke ends at its edge. A lower hardness can blend the copied texture into a softly lit surface. A firmer edge is useful near a clear boundary, such as the side of a tile. Strength controls how much of the sampled pixels the stroke applies. Start with a moderate setting if you need to preserve some of the texture at the destination. For a clear dark speck on a plain wall, a stronger stroke may cover it more cleanly.
Step 5. Paint a short stroke and inspect the patch
Click the mark for a small repair, or drag a short stroke over it. During a drag, the sample moves in the same direction as your brush. If you sample just above a scuff and then drag along it, the tool follows a parallel path in the clean texture above. Watch for a seam, highlight or other unwanted detail entering that source path.
Release after a small section and look at the result at close zoom. If the copied texture forms a new visible line, use Undo and choose a closer source. Reset the sample as you move along the surface. A clean patch beside the first part of a scratch may be too bright or too dark for the far end.
Step 6. Protect a nearby edge when needed
Suppose the scuff reaches the edge of a picture frame. A large brush can copy wall texture over the frame even if the source is clean. Use a small brush for the last section, or trace the wall side of the edge with Polygonal Lasso or Freehand Lasso. The selection limits where the Clone Stamp can apply the repair. Choose Clone Stamp again after making the selection and set the sample before painting.
When you are done, use Select → Deselect pixels. Inspect both the repair and the boundary next to it. Use Fit to check whether it still draws attention at a normal viewing size. If you worked on a copy, toggle that layer's visibility to compare the difference.
When a mark crosses a line in the photo, such as a grout line, repair the two sides separately before touching the line itself. Then sample a clean section of the line and align it with the missing part. A small stroke makes it easier to keep both edges of the line in the right place.
Step 7. Export and keep an editable copy
Choose Download image to save a PNG. Open Download options if the destination requires a different format or output size. Inspect the downloaded file for repeated details, blurred patches and any repair that looks darker or lighter than the surrounding area.
If you plan to return to the job, choose File → Download project. A project lets you reopen the layers and continue working. Saving the repaired copy above the source is useful when you want to compare a future edit with the starting photo.