Curve Fitting Software for Free
ndCurveMaster Trial Version
The shareware model provides an opportunity to try our curve fitting software before making a purchase. Feel free to download a copy of ndCurveMaster and evaluate it for 7 days. If you have any queries, please refer to the program's "About" menu or visit our contact page.
The latest version of ndCurveMaster is 8.7.4.1, released on October 24, 2025. All the following new features are available in the entire 8.7 series:
- Option to select only statistically significant models (F and t): Added feature that allows searching exclusively for models that are statistically significant as a whole based on the F-statistic (ANOVA F-test) and in which all predictors are statistically significant according to the t-statistic (Student’s t-test).
- Improved Search Algorithm: Refined algorithm ensuring more efficient and accurate model discovery.
- Bland–Altman Test Filtering: Check and search for models that positively pass the Bland–Altman test — especially useful for medical and biological data.
- Refined Regression Coefficient Control: Improved search algorithm with respect to the range of regression coefficient values.
- Optimized Regression Search: New algorithm with automatic overfitting control.
- Fundamental Function Sampling: Random search starts from basic functions. Watch video
- Performance Improvements: Enhanced speed and memory management.
- Q-Q Plot & Normality Tests: Visual and statistical analysis of residuals. Learn more about Q-Q plots and normality tests
- GUI & Workflow: Improved interface and better handling of large datasets.
- High Performance: Multi-threaded processing, better model quality, relative RMS error.
- Variable Sensitivity: Identify and analyze most impactful variables.
- Python Integration: Export functions and integrate with Python workflows.
- Advanced Algorithms: Upgraded regression engine.
- Code Export: Generate functions in C/C++ and Pascal for external use.
Explore our powerful curve fitting software to unlock the potential of nonlinear equation discovery, multivariable modeling, collinearity control, overfitting prevention, polynomial fitting, and built-in machine learning features.
ndCurveMaster 2D: Free Curve Fitting Program
ndCurveMaster 2D is a free curve fitting software available for both Mac and Windows. It is completely free to use without any time restrictions. Please note that ndCurveMaster 2D is a lightweight, 2D version of ndCurveMaster, offering a limited number of basic functions and options.
