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Best Free Alternatives to IBM SPSS Statistics 31
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Category: Statistical Analysis / Data ScienceVerified for 2025
Top Recommended Replacements
JASP 0.95
FREETop Modern Alternative
Why we like it
100% free; the late 2025 'v0.95' update features a new 'Plot Builder', Auto-save/Recovery, and an ESCI (Estimation Statistics) module; arguably the most beautiful and intuitive GUI in statistics; excels at both Frequentist and Bayesian analysis.
Keep in mind
Data editing capabilities are more limited than SPSS (it prefers a 'read-only' approach to the source data file).
jamovi (2025 Cloud/Desktop)
FREEBest for R-Integration
Why we like it
Built by the original JASP developers; offers superior data spreadsheet editing; includes 'OMV' files that save data, analysis, and results together; allows users to see the underlying R-code for every analysis.
Keep in mind
Interface is slightly more utilitarian than JASP; smaller native library of Bayesian procedures.
PSPP
FREEBest for Legacy SPSS Users
Why we like it
A 1-to-1 open-source clone of the legacy SPSS interface; reads .sav files natively; handles massive datasets that exceed RAM; no learning curve for long-time SPSS users.
Keep in mind
The interface looks dated (similar to SPSS v15); lacks modern machine learning modules and advanced charting found in JASP or SPSS 31.
numiqo (formerly DATAtab)
FREEBest Browser-Based Tool
Why we like it
No installation required; 2025 update added advanced survival analysis and cluster analysis; includes a 'Statistical Guide' that helps users pick the right test.
Keep in mind
The free version is restricted; high-volume data analysis requires a subscription.
DataStatPro
FREEBest for Collaborative Teams
Why we like it
Breakout 2025 alternative; web-based with real-time collaboration; automatically generates APA-formatted tables; excellent for student-teacher environments.
Keep in mind
Newer platform with a smaller community of experts for troubleshooting complex bugs.
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