One of the best ways that you can support the JASP project is by citing it. Citations are an important measure of how widely software is used, and an important indicator to funding bodies of JASP’s relevance.

To cite JASP in publications use:

JASP Team (2024). JASP (Version 0.18.3)[Computer software].

And the BibTeX entry :

AUTHOR = {{JASP Team}},
TITLE = {{JASP (Version 0.18.3)[Computer software]}},
YEAR = {2024},
URL = {}

No, JASP will never collect any user-identifiable information.

First, download JASP from our download page.

If you’re on Windows, you can go ahead and install JASP without having to do anything else.

If you’re on Mac OS X, take a look at our installation guide.

If you’re on Linux, please follow the steps described on the download page.

JASP can open the following file types:

  1. .csv, .tsv, and .txt (any text files with comma/semicolon/colon/tab separated columns)
  2. .sav, .zsav and .por (SPSS files)
  3. .sas7bda, .sas7bcatt and .xpt (SAS files)
  4. .ods (Open Document Spreadsheet format, used by software such as            OpenOffice, LibreOffice, and Excel)
  5. .dta (Stata files)

In recognition of Bayesian pioneer Sir Harold Jeffreys, JASP stands for Jeffreys’s Amazing Statistics Program.

JASP itself consists of two different executables which are licensed under slightly different terms.
The JASP-Engine, where our R code runs, is distributed under GNU GPLv2
But the JASP-Desktop, the user interface,  is distributed under GNU Affero GPL v3



Yes — More importantly, it is released under a Free and Open Source license, which means that even if we turn evil, we will not be able to take JASP away or prevent others from contributing to it, working on it, or distributing it freely. This excerpt from our license sums it up nicely:

The licenses for most software and other practical works are designed to take away your freedom to share and change the works. By contrast, our General Public Licenses are intended to guarantee your freedom to share and change all versions of a program — to make sure it remains free software for all its users.

If you are interested in learning more about our accessibility statement, click here.

JASP is currently supported by long-term, multi-million euro grants that help fund a team of motivated software developers, academics, and students. Our three main software developers and several core team members have tenured positions. The Psychological Methods Group at the University of Amsterdam is dedicated to long-term support for JASP.
Also we are developing a JASP educational community between several institutions of higher learning, see Community and visions.
Finally, the JASP code is open-source and will always remain freely available online. In sum, JASP is here to stay.

The JASP application is written in C++ and QML, using the Qt toolkit.The analyses themselves are written in R and use many packages from CRAN. The results display layer runs in Qt WebEngine and javascript + jQuery.

Yes, this is possible. When JASP was first developed, the focus was on designing a GUI that would retain the desirable properties of syntax (such as reproducibility) without requiring or producing syntax itself. Since then we came to the realization that many users would like to have access to the R syntax, and it is available in JASP from version 0.17 onward. The R syntax is visible by clicking the analysis-specific R icon.
At the moment, the R syntax works only within JASP itself — it can be used to control the GUI and it runs in the JASP R console. In the near future the R syntax produced by JASP will also work in R Studio.