GNU Make
CMake
SCons
SBT
npm
Gradle
Brunch
Ninja Build
g3data
WebPlotDigitizer
im2graph
DataThief III
Silkscientific UN-SCAN-IT
GraphClick
jTechDig
Plot Digitizer
CMake - CMake is an open-source, cross-platform family of tools designed to build, test and package software.
WebPlotDigitizer - WebPlotDigitizer - Web based tool to extract numerical data from plots, images and maps.
SCons - SCons is an Open Source software construction toolโthat is, a next-generation build tool.
im2graph - im2graph graph digitizing software to convert graphs to numbers
SBT - SBT is a build tool for Scala, like Ant or Maven but with hieroglyphics.
DataThief III - DataThief III is a program to extract (reverse engineer) data points from a graph.