QtiPlot
Original authorIon Vasilief
Stable release
1.2.7 / 20 May 2026; 27 days ago (2026-05-20)
Written inC++, Python
Operating systemCross-platform
TypePlotting
Licensecommercial
Websitewww.qtiplot.com

QtiPlot is a cross-platform computer program for interactive scientific graphing and data analysis. It is similar to Origin or SigmaPlot.

QtiPlot can be used to present 2D and 3D data and has various data analysis functions like curve fitting. Plotting of 3D data can be rendered using OpenGL using the Qwt3D libraries.

The program is also extensible to a considerable degree via muParser and Python scripting language, which allows adding the arbitrary user-defined functions with access to graphs, matrices and data tables.

Older QtiPlot versions up to 0.9.8.9 were released under the terms of the GNU General Public License (GPL) and are available also as binaries for Linux distribution repositories[1] as well as for Windows.[2]

Starting with version 0.9.9 the source code is not available from the author anymore. Compiled binaries are available for Microsoft Windows, several Linux distributions and Mac OS X, including the new ARM M1 chips; downloading binaries from the author's website requires purchase of an annual maintenance contract. Files saved by version 0.9.9 cannot be loaded by version 0.9.8.

Alternatives

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Main article: Origin (data analysis software) § Alternatives and clones
See also: List of graphing software
  • SciDAVis, forked from QtiPlot in 2007
  • LabPlot, free, open source and cross-platform
  • Fityk, MagicPlot more focused on curve fitting
  • peak-o-mat, similar to Fityk
  • HippoDraw, focussed on graphing
  • Veusz, written in Python
  • ParaView, for visualizing huge datasets
  • gnuplot, command-line program for two- and three-dimensional plots

References

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  1. ^ "QtiPlot packages for Linux". pkgs.org. Retrieved 26 April 2015.
  2. ^ "Unofficial QtiPlot Build for Windows". Cells.es. Archived from the original on 25 September 2016. Retrieved 20 November 2014.

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