GraphScan

The GraphScan scans graphs in bitmap format to (x,y) data. The output can be used in spreadsheet programs or other scientific programs.

I’ll hope you enjoy using this program and find it useful for your analytical or other purposes.
The GraphScan is a freeware program but the source code is not. You may distribute this program freely but any modification, disassembling or using some parts of it without an agreement with the author is not allowed.