To blur the background of a picture for free, you can use a dedicated tool. There are several dedicated tools as well as photo editors with a blur tool to blur the image background.

This tutorial will show you How to Blur Images and Background using GIMP. The free image editor offers several Filters that can help you do that.

You can use the Blur intensity and Focus position sliders to adjust the focus of the image and intensity of the background blur. Step 7: Once you're done with your blur edits, you can select the ...

Press "Shift-Ctrl-I" to invert your selection. Keeping the foreground and background elements of the image separate ensures that you only blur the background when working with the Blur brush.