How to remove a plain image background without uploading it
A practical guide to background tolerance, edge feathering and transparent PNG exports, including when this browser tool cannot help.
A product photo against a white wall is a good candidate for automatic background removal. A person standing in front of trees is much harder: leaves and clothing can have similar colours, and the background may run right through the middle of the image. The background remover uses the colours around the image edges to decide what to erase. It does not recognize objects or people, so choosing the right photo matters more than finding a magic setting.
Start with a clear edge
Choose a photo where the background touches the outside of the frame and differs visibly from the subject. A plain studio wall, paper backdrop or gently graded sky usually works. If the subject touches the frame, crop with a little margin first: otherwise part of the subject may be treated as background.
Adjust tolerance before feathering
Open the image in the background remover and run it with the default settings. If background remains, raise Tolerance in small steps. If parts of the subject disappear, lower it. The setting controls how far a pixel may differ from the edge background while still being removed. A high tolerance can erase light clothing or pale product edges along with a white wall.
Edge feather softens the boundary after the background has been selected. Keep it low while checking whether the correct pixels were removed. Feathering cannot restore a missing subject or fix a busy background.
Check the result on two colours
The result is a transparent PNG. Preview it against both a light and a dark background before using it in a design. A white halo that vanishes on a white page can stand out on a dark one. If you see a halo, try a slightly different tolerance, then adjust feathering.
Know when to use another editor
This tool will usually keep complex scenery because it cannot tell scenery from subject. Hair, semi-transparent objects and shadows may also need manual cleanup in an image editor. Keeping your original file lets you try different settings without losing detail. The image is processed in your browser; it is not uploaded to btools.