There are a few ways to remove something from a picture without Photoshop. You can use an eraser tool, or you can use the clone stamp tool.
The eraser tool is the simplest way to remove something from a picture. Just select the eraser tool, and then click and drag over the area you want to remove. The disadvantage of using the eraser tool is that it can leave behind a lot of unwanted artifacts.
The clone stamp tool is a bit more complex, but it gives you more control over what you’re removing. To use the clone stamp tool, first select an area that you want to copy.
Then, click and drag over the area you want to remove. The clone stamp tool will copy the selected area and replace it with the pixels you dragged over.