New help documentation and example projects are live
The help documentation has been reorganized around the modeling workflow and convergence debugging, and ships with several runnable example projects.
Coming soon
Chemical process simulationbuilt for process engineers
CybSIM is built around graphical flowsheet modeling. Distillation, heat exchange and reaction units, convergence diagnostics and clean engineering reports help you complete process calculations and compare design alternatives.
- Solves locally, no internet needed
- Common unit operations included
- Windows, Linux, and MacOS all supported
- Traceable release history
Capabilities
Core capabilities
From flowsheet modeling to results analysis, the tools follow the way process calculations are actually done, cutting repetitive work and manual cross-checking.
Steady-state simulation
Multi-component property calculation with full-flowsheet material and energy balances.
Learn moreUnit operation library
Distillation, heat exchange, reaction, separation and more, all configured from one parameter panel.
Learn moreProperties and methods
Common property methods built in, with support for custom components and binary interaction parameters.
Learn moreConvergence diagnostics
Convergence plots, residual monitoring and conflict-node hints help you find out why a flowsheet will not converge.
Learn moreResults and reports
Generate material balance tables, equipment duty tables and trend charts in one click, then export or share them.
Learn moreSensitivity analysis
Sweep operating variables and equipment parameters in batch and see how target metrics respond.
Learn moreInterface
Interface and results preview
A modeling workspace, a unit parameter panel and result charts make up one complete workflow.
Flowsheet modeling workspace
Build flowsheets on the canvas, with material and energy streams drawn as you connect units.
Parameter input and output panel
The parameter window is defined by a structured, form-based interface that leverages real-time status indicators—such as red checks for missing required inputs and blue checks for completed sections—allowing users to rapidly validate simulation setups, seamlessly convert engineering units, and navigate complex thermodynamic data through an intuitive, hierarchical tree structure.
Running panel
The Running panel window displays real-time messages during the solution process, making it easy for users to modify the model and improve convergence conditions.
News
Latest news
News
Support hours during the 2026 holiday season
Technical support hours will be adjusted around US public holidays at the end of the year. Please plan ahead.
Download
Get the latest version and release notes
The download page lists system requirements and the full release history, so you can check compatibility and see exactly what changed in each update.
Coming soon
Go to downloadsRan into a problem? Tell us.
Calculation issues, feature requests or installation trouble: send us feedback and we will follow up in the order received.