JASP

Data & analytics

Free open-source softwareEditorial overview
A CLOSER LOOK

What is JASP?

JASP is a graphical statistics application offering frequentist and Bayesian analyses in an accessible interface. It combines data inspection with tables and plots that update as analysis settings change, supporting teaching and research workflows.

Bayesian analyses

Frequentist tests

Interactive results

Statistical plots

Is it a good fit?

Best suited to

Researchers comparing Bayesian and frequentist analyses

Before you choose

Method choice still requires statistical knowledge. Not a general data-engineering environment.

Editorial assessment based on the provider’s published information. Our method

Know what you're signing up for.

The Open source software is available without a license subscription and includes Bayesian analyses and Frequentist tests. This covers the downloadable application, while optional support, third-party services, and separately licensed materials have their own terms.

No software subscription; hardware, support and any separately licensed extras are not included.

Check current official pricing

The useful parts. The trade-offs.

Why consider it

Puts two statistical approaches in one interface

Results update during exploration

What to keep in mind

Method choice still requires statistical knowledge

Not a general data-engineering environment

How to use it well

Inspect variable types and data coding before selecting a test. Compare the analysis settings against your study design, and document prior choices when using Bayesian methods. Save the analysis file with the dataset so colleagues can examine the setup, then export only the tables and figures relevant to the research question.

This is best suited to researchers comparing Bayesian and frequentist analyses. Before committing a larger project, account for these trade-offs: method choice still requires statistical knowledge; not a general data-engineering environment.

A few things you might be wondering.

Is JASP free?

The Open source software is available without a license subscription and includes Bayesian analyses and Frequentist tests. This covers the downloadable application, while optional support, third-party services, and separately licensed materials have their own terms.

Does JASP support Bayesian statistics?

Yes. Bayesian analyses are a core part of the application.

Can selecting a menu replace checking assumptions?

No. The study design and assumptions still need assessment.

Where can I check the latest prices?

Use the provider link on this page. Billing period, location, team size, promotions, taxes, and optional extras may affect the amount you pay.

How should I compare this tool with alternatives?

Choose tools for the same task, then compare their feature limits, platform support, and total cost for your team. The Compare button helps you keep a shortlist.

Are the user reviews moderated?

Yes. New reviews are submitted for moderation. We show published user reviews separately from the editorial overview and never assign a default user rating.

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