By default, the program scans and finds all areas of the specified color within the entire PNG image. For example, you can enter the color 'green' in the options to make it transparent and then add 15% of its shades to the transparency. When this option is turned on, you can select one of the colors in the JPG (and, optionally, a certain percentage of its tones) that will be converted to the transparent color in the PNG. In the options, you can also enable transparency for the output PNG. It works entirely in your browser and only uses the HTML5 features to do the conversion. With this online tool, you can transform a JPG (in the input) into a PNG (in the output).
