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Ansys Student vs CalculiX: catalog facts
Ansys Student	CalculiX
Best for: Engineering students learning finite element and fluid simulation	Best for: Engineers who need a free structural FEA solver
Free Student licenses are provided free of charge.	Free Free software at no cost.
Windows	Windows, Linux
Free access to professional engineering simulation software Covers structural, fluid and electronics analysis All 3 strengths for Ansys Student Free access to professional engineering simulation software Covers structural, fluid and electronics analysis Backed by free courses, tutorials and a learning forum	Linear and non-linear static, dynamic and thermal analysis Reads the Abaqus input format All 4 strengths for CalculiX Linear and non-linear static, dynamic and thermal analysis Reads the Abaqus input format Exports meshes for several other FEA and CFD codes Includes a simple STEP reader
Intended for students and learning, not commercial projects Student editions are more limited than the commercial products	Dated interface with a steep learning curve Developed by volunteers in their spare time
Downloadable app	Downloadable app
Not open source	Open source
License: Proprietary	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Offline features available
Official website Full listing and sources Sources for Ansys Student ansys.synopsys.com/academic/students Catalog checked October 2, 2026	Official website Full listing and sources Sources for CalculiX calculix.de Catalog checked October 1, 2026

“Not stated” means we have not confirmed it. Features can vary by device and plan.