Graph Extract is a program for the digitization of graphs. Using a manual or automated approaches, this program provides an easy way to extract the underlying data of a graph. The graph can be loaded as a bitmap or scanned directly. The program can work with scatter plots, line plots and bar charts. Data can be extracted by hand or by an automated process for the linear plots or scatter plots with some large amounts of data. Also, data can be visualized as a table or graph, and saved as an Excel file for further analysis.