TopOpt review
A free, research-oriented toolkit for interactive 2D and 3D topology optimization.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
TopOpt is a free collection of topology-optimization applications, research codes, and frameworks from DTU Mechanical Engineering and DTU Compute. It is suited to engineers, researchers, educators, and students who need to explore minimum-compliance designs in 2D or 3D. Interactive controls cover loads, supports, volume fractions, and mesh settings, while the collection also includes tools for shape optimization, buckling, contact analysis, photonics, and de-homogenization.
The free plan includes interactive topology-optimization apps plus MATLAB, Python, C/C++, and research codes. Its standout capability is the ability to adjust design conditions while observing optimization progress, with support for multiple load cases, gravity loads, and passive solid or void elements. TopOpt also combines topology and shape optimization and supports optimized-structure export for 3D printing. A parallel PETSc framework extends the collection toward large-scale topology optimization.
TopOpt fits a broad technical ecosystem: it runs across web, Windows, macOS, Linux, iOS, and Android, and integrates with MATLAB, Python, PETSc, COMSOL, and Grasshopper. That breadth favors users who are comfortable moving between interactive apps, code examples, and research frameworks. It is less suitable for buyers seeking a conventional commercial SaaS workflow or a broad manufacturing platform. Choose TopOpt for free, technically deep optimization exploration; consider an alternative when production-oriented manufacturing features are the priority.
TopOpt pros and cons
- Where it wins
- Free interactive 2D and 3D topology optimization
- Multiple load cases, gravity, and passive solid or void elements
- MATLAB, Python, PETSc, COMSOL, and Grasshopper integrations
- Where it doesn't
- More a collection of apps and codes than a conventional SaaS product
- Manufacturing workflow coverage is narrower than its optimization scope
- Advanced workflows may require MATLAB, Python, C/C++, or research codes
TopOpt fact sheet, pricing and score →
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