How to Use the Clone Tool in GIMP

The Clone tool - Sometimes called the Clone Stamp - Is one of the most powerful retouching tools in GIMP. It works by sampling pixels from one area of your image and painting them somewhere else. That sounds simple, but it is incredibly versatile: you can remove a person from a background, fix a scratch on an old photo, patch a repeating texture, or cover up a watermark.

How the Clone Tool Works

The Clone tool has two actions:

Set the Source

Hold Ctrl and click on the area you want to copy FROM. This sets the sample point.

Paint the Destination

Click and drag over the area you want to cover. GIMP paints pixels from your source point onto the destination.

As you paint, a crosshair cursor shows exactly which source pixels are being copied. The two points move together - So if you move five pixels to the right while painting, the source also moves five pixels to the right.

Step-by-Step - Removing an Object

1

Activate the Clone tool - Press C or find it in the Toolbox.
2

Choose a brush size - In Tool Options, pick a brush slightly larger than the object you want to cover. A soft-edge brush blends better than a hard one for most photos.
3

Set the source point - Hold Ctrl and click on a clean area of the background near the object you want to remove. Pick a spot with similar texture and colour.
4

Paint over the object - Click and drag over the area you want to remove. Take short strokes and reset your source point often to avoid obvious repeated patterns.
5

Zoom in and refine - Work at 100-200% zoom to catch any visible seams or mismatched areas. Reduce brush size for detail work near edges.

Tips for Better Clone Results

Problem	Fix
Obvious repeated pattern	Reset your source point frequently - Use multiple different source areas
Edge looks too sharp	Use a soft round brush with 50-80% hardness
Texture direction is wrong	Find a source point where the texture runs in the same direction as the destination area
Result looks blotchy	Lower the brush Opacity to 70-80% and build up coverage gradually with multiple strokes

Clone Tool vs Heal Tool

GIMP also has a Heal tool, which is similar but smarter - It blends the copied pixels to match the brightness and colour of the surrounding area. For skin blemishes and subtle fixes, the Heal tool usually gives a more seamless result. For hard edges, patches with very different backgrounds, or large areas, the Clone tool gives you more direct control.

A good workflow is to use the Clone tool for the bulk of the removal work, then switch to the Heal tool for the final smoothing pass. Both tools live in the same area of the Toolbox and work with the same Ctrl+click to set source logic.