This free online application allows you to draw on a touchscreen device with your finger or a stylus (stylus prefered). Draw the same as you would with a pencil on paper. You can select different line widths and line colors. To erase, choose the background color and draw over the line you wish to erase. When your drawing is complete, click on the [Download] button. Your drawing will be saved as a .png file to the default download location that you configured on your device. To reload your drawing, click on the [Choose File] button, your system's Open file navigation dialog box will appear, which you can use to navigate to and open your file.
The Touch drawing application is used to create line drawings which can be taken to a paint application for coloring and shading. Touch does not have a Fill color function. However, you may attempt to fill an area with lines of various colors. You can begin using the Touch drawing application by clicking here.