v1.0 LTS ↓ Download
Free & Open Source · v1.0 LTS

Structural
Equation
Modeling

A free, open-source desktop app for PLS-SEM, CB-SEM, and fsQCA. Visual drag-and-drop model builder, APA 7th edition reporting, bootstrapping, and multi-group analysis. No license fees, no paywalls — ever.

↓ Download v1.0 Documentation → What's New →
21 API endpoints
174+ tests
v1.0 LTS
CC BY-NC-ND 4.0
NAVAL·SEM — v1.0 LTS
Model Builder
Analyse
Results
Report
NAVAL·SEM Model Builder Canvas — drag-and-drop SEM canvas
Capabilities

Everything you need for SEM — and fsQCA

⬡
Visual Model Builder
Drag-and-drop canvas that auto-generates lavaan syntax. Undo/redo, PNG export, live canvas sync with the syntax editor.
⟳
PLS-SEM & CB-SEM
Full support for Partial Least Squares and Covariance-Based SEM (ML), plus WLS. Algorithm selector with bootstrap N control.
≋
Measurement Validity
AVE, CR, Cronbach's α, Fornell-Larcker, HTMT, CVI, EFA, Nomological Validity, and Measurement Invariance (MICOM).
⤢
Robustness Methods
FIMIX-PLS segmentation, PLS-POS, Gaussian Copula endogeneity correction, NCA-ESSE sensitivity extension.
◈
fsQCA Engine NEW v1.0
fuzzy-set QCA with calibration, necessity analysis, truth table, and Quine-McCluskey Boolean minimisation. Complex, parsimonious, and intermediate solutions.
≡
APA 7 Reporting NEW v1.0
Export submission-ready Word (.docx) tables: measurement model, discriminant validity, structural paths, and indirect effects — all APA 7th edition formatted.
⊕
Multi-Group Analysis
HOC (Higher-Order Constructs), MICOM measurement invariance, and MGA engine for comparing structural paths across groups.
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Conditional Process
Moderation, IPMA, NCA, and conditional process analysis (Hayes PROCESS Models 7, 14, 58/59) with bootstrapped indirect effects.
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Export & Distribution
Export R/lavaan, Python/semopy, JASP code. PDF and APA Word reports. Available via SourceForge, Zenodo DOI, Microsoft Store, and AlternativeTo.
Latest Release
v1.0.0
LTS
fsQCA Engine + APA 7th Edition Reporting + Schema Freeze
Released 27 June 2026
LTS fsQCA APA Report Schema Freeze POST /fsqca POST /report
What's New ↗ ↓ Download Changelog ↗
All Releases
VersionDateHighlightsNotes
v1.0.0LTS 27 Jun 2026 fsQCA (Quine-McCluskey), APA 7th edition Word export, Schema freeze, 174+ tests What's New →
v0.9.2 25 Jun 2026 Playwright UI test suite merged; CI stability fixes Changelog →
v0.9.0 22 Jun 2026 CVI, EFA, Nomological validity, Measurement invariance (MICOM), NCA-ESSE What's New →
v0.8.0 14 Jun 2026 FIMIX-PLS segmentation, PLS-POS, Gaussian Copula endogeneity correction, PDF report export What's New →
v0.7.1 8 Jun 2026 Moderation, IPMA, NCA, Conditional Process Analysis (Hayes PROCESS) What's New →
v0.6.2 3 Jun 2026 Syntax → Builder fix, structural path order Changelog →
v0.6.0 2 Jun 2026 Higher-Order Constructs, MICOM, Multi-Group Analysis Changelog →
v0.5.0 25 May 2026 Predictive Relevance, Q², PLSpredict, CVPAT, CMB Changelog →
v0.4.1 22 May 2026 VIF, Cohen's f², indirect effects, Effects tab Changelog →
v0.2.0 7 May 2026 Initial public release — visual builder, PLS/CB-SEM, HTMT Changelog →