If you want your website to have a small image on the address bar, well you first need to have an ico file. Image files with the file extension ico is what you need in order to have that address bar image. However, I'm not here to talk about how to add your icons to the address bar, I'm here to talk about how to convert your image files to icon files.

Ordinary image files usually have the file extension jpeg. If you import images from your digital camera, the pictures usually have this kind of file extension. However, you cannot directly use jpeg files for your address bar icons. So what you need is a free online image tools like this one found on CoolUtils.com. Their image converter can convert ordinary image formats such as BMP, JPG, PNG, GIF or ICO as long as it does not exceed 100kb. Pretty useful tool.