Veusz is a free and open source scientific plotting and graphing software for Windows, MacOS and Linux. Using Veusz you can draw 2D and 3D plots easily and you can use as a Python module for plotting also. Object-based plotting widgets are very important feature in veusz. It is used to create and customize your plots. Veusz supports data import from text, CSV, HDF5 and FITS and output in vector, bitmap, PDF, Postscript, SVG and EMF. It also supports plugin. Using this you can extend its features. It is released under GPL version 2 or greater licence. It is written in Python and c++.