Skip to content

@wpotrzebowski wpotrzebowski released this May 20, 2019

New in Version 5.0

This is a new version of SasView featuring new and enhanced GUI, back-end calculations, GUI separation, optimization of calculations and other improvements. This release also includes beta (decoupling) approximation for intensity calculation.
The release is based on Python 3 and Qt5/PyQt5.
We recommend that you avoid using installation folder paths which contain spaces, non-Latin characters or characters not available on a standard keyboard.

Changes/Improvements from 5.0.beta2

  • Beta (decoupling) approximation has been introduced
  • Stop fit button added to Constrained and Simultaneous Fitting
  • Plotting has been improved
  • Volume fraction naming conflicts has been resolved
  • SLD calculator user interface has been improved
  • Fit Options tab has been improved
  • Windows installer path specification has been resolved
  • Copy parameters function has been fixed
  • Save/Load Project functionality has been improved


  • Documentation for Constrained and Simultaneous Fitting has been considerably reworked.
  • Tutorials have been adapted to match 5.0 interface

Known Issues

All the known bugs/feature requests can be found in the issues on github sasview

Acknowledgement and citation

If you publish work making use of SasView 5.0.0 please include the following text:
This work benefited from the use of the SasView application, originally developed under NSF Award DMR-0520547. SasView also contains code developed with funding from the EU Horizon 2020 programme under the SINE2020 project Grant No 654000.

SasView 5.0.0 can be cited as :
M. Doucet, et al. SasView Version 5.0.0

Bug Reporting

Please support the project by reporting bugs that you find to

All the known bugs/feature requests can be found in the issues on github. Note the sasmodels issues are now separate from the sasview issues (i.e. different repositories)

Regular developer builds are also available from if you wish to test the very latest (most likely unstable) versions of SasView.

Assets 5