Manually count the cells shown on computer screen. Grid Cell Counter is a freeware biology tool that will help you to manually count the cells shown on computer screen by displaying a transparent or semi-transparent grid over your image.

Open the image that contains the cells to be counted in your preferred software/image viewer. Start Grid Cell Counter, and choose the size of the grid.

Cell Counter is delivered in a small package together with other free molecular biology tools. Download the package and double click it. The programs inside the package will be extracted to the destination folder (specified by you). Go to the destination folder and double click the program you want to use.

The license of this software is Freeware, you can free download and free use this graphing software.