Flatnic

Linux · Education & Science

Fityk

Curve fitting tool

by Marcin Wojdyr

Download

Official site: flathub.org

About Fityk

Fityk [fi:tik] is a program for data processing and nonlinear curve fitting.

Primarily used:

by scientists who analyse data from powder diffraction, chromatography, photoluminescence and photoelectron spectroscopy, infrared and Raman spectroscopy, and other experimental techniques,

to fit peaks – bell-shaped functions (Gaussian, Lorentzian, Voigt, Pearson VII, bifurcated Gaussian, EMG, Doniach-Sunjic, etc.),

but it is suitable for fitting any curve to 2D (x,y) data.

How to install Fityk

  1. Click Download — the developer's official website opens in a new tab.
  2. Download the latest version there and run it. Choose Custom/Advanced where offered, and skip any bundled extras.
  3. Prefer the command line? With Flatpak you can install and update it with: flatpak install flathub pl.nieto.fityk
  4. Open Fityk once it finishes installing.
How to install Linux apps with Flatpak

Frequently asked questions

Is Fityk free to download?

Yes. The Download button sends you to flathub.org, the developer's official site, where Fityk is available to download. Flatnic doesn't host or modify any files.

How do I install Fityk from the command line?

With Flatpak, run: flatpak install flathub pl.nieto.fityk. This installs it from the official source and keeps it updated.

Is Fityk safe?

Fityk downloads directly from the developer. As always, scan the installer with your antivirus and choose Custom setup to skip any bundled extras.

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