GraphClick
g3data
WebPlotDigitizer
DataThief III
Silkscientific UN-SCAN-IT
im2graph
jTechDig
Plot Digitizer
Visualoop
CodeAnalogies
Redash
Brandwatch Vizia
The Data Visualisation Catalogue
Datamatic.io
Infogram
Atlas.co
GraphClick
Visualoopg3data - g3data is used for extracting data from graphs.
CodeAnalogies - Visual explanations of web development topics
WebPlotDigitizer - WebPlotDigitizer - Web based tool to extract numerical data from plots, images and maps.
Redash - Data visualization and collaboration tool.
DataThief III - DataThief III is a program to extract (reverse engineer) data points from a graph.
Brandwatch Vizia - Multi-screen display telling the story of your social data