If you need multi-seat or site-wide licensing, contact sales directly—custom discounts often apply, especially for startups and academic-industry partnerships.
DWSIM Pro offers a 30-day fully functional trial. Transition from the free version is seamless—flowsheets built in Classic open directly in Pro.
Start simulating smarter today.
👉 www.dwsimpro.com (example domain; actual site may vary)
DWSIM Pro is a registered trademark of DWSIM Technologies. Aspen Plus®, HYSYS®, and other names are property of their respective owners.
Buy DWSIM Pro if:
Stick with Community Edition if:
Stick with ASPEN/HYSYS if:
As of 2025, DWSIM Pro is on version 8.3 (planned 9.0 for 2026). Key roadmap items include:
If these features materialize, DWSIM Pro could realistically become the first open-core simulator to challenge the incumbents in the mid-market ($1M–$50M capital projects).
This is arguably the strongest "Pro" feature for engineers working in corporate environments.
DWSIM Pro is not just a “Pro” label—it is a serious industrial tool that lowers the barrier to high-quality chemical simulation. Its pricing model respects the realities of modern engineering, where locked-in, expensive licenses are no longer justifiable for many tasks.
By combining rigorous thermodynamics, dynamic simulation, cost estimation, and powerful scripting, DWSIM Pro delivers approximately 80% of the functionality of market leaders for roughly 5% of the price. For the vast majority of chemical engineers working outside of mega-projects, that trade-off is a clear winner.
If you haven't tried DWSIM Pro recently, download the trial. You might be surprised how far open-core engineering has come.
About the author: This article was researched using publicly available documentation, developer interviews, and user case studies from the DWSIM community forum and LinkedIn groups. For corrections or updates, contact the editorial team. dwsim pro
DWSIM Pro: Bridging Open-Source Simulation and Enterprise-Grade Analytics
Process simulation has long been dominated by high-cost, proprietary software suites. However, the rise of DWSIM, an open-source chemical process simulator, has shifted the landscape by providing a free, CAPE-OPEN compliant alternative. While the standard version is robust for academic and fundamental engineering tasks, DWSIM Pro serves as its commercial, enterprise-focused extension, offering advanced features for deep industrial analysis. Core Capabilities of DWSIM Pro
DWSIM Pro builds upon the open-source foundation created by Daniel Medeiros, adding critical tools for commercial process development. Key features include:
Techno-Economic Analysis (TEA): Users can evaluate capital costs (CAPEX) and operating expenses (OPEX), essential for determining the financial viability of new chemical or biological processes.
Sensitivity Analysis: Advanced modules allow engineers to assess how varying parameters—such as feed flow rates or temperature—impact overall process efficiency and profitability.
Advanced Unit Operations: Pro features specialized tools like PPBDesigner for modeling discrete flow systems and liquid-liquid extraction columns using detailed population balances.
Cloud Accessibility: Hosted on Simulate365.com, the Pro version provides a cloud-based environment with private technical support, making it easier for distributed teams to collaborate. A Cost-Effective Competitor to Industry Giants
is the commercial extension of the open-source chemical process simulator. While the base version is free, the Pro version is hosted on the Simulate 365
SaaS platform and provides professional-grade features, private support, and advanced engineering applications. Key Features of DWSIM Pro
DWSIM Pro builds upon the open-source foundation with several specialized tools for industrial use: Advanced Unit Operations
: Includes specialized apparatus like three-phase reactors, advanced heat exchangers, and the PPBDesigner module for population balances. Techno-Economic Analysis (TEA)
: Tools to evaluate capital (CAPEX) and operating costs (OPEX), calculate raw material consumption, and conduct sensitivity analysis. Reporting & Documentation
: A dedicated tool for generating professional, high-quality Process Flow Diagrams (PFDs) If you need multi-seat or site-wide licensing, contact
and detailed simulation reports directly within the software. Flowsheet Copilot
: An AI-based assistant that suggests alternative process topologies and helps users converge complex flowsheets. Amines Property Package
: Specifically designed for carbon capture simulations, such as gas sweetening and biogas scrubbing. Cloud Integration
: A central dashboard for managing simulation files, parameter studies, and collaboration with team members. ScienceDirect.com
DWSIM Pro, the commercial version of the open-source DWSIM simulator, includes a dedicated Solids Manager
designed specifically to handle solid compounds and particle size distribution (PSD). While the open-source version has basic solid-liquid equilibrium capabilities, DWSIM Pro offers advanced tools for modeling and tracking how solid particles behave throughout a process flowsheet. Key Solids Management Features in DWSIM Pro Solids Manager
environment provides specialized tools for industries where solid material characteristics are critical to production: Particle Size Distribution (PSD) Handling Generation
: You can create PSDs using standard probability distributions such as Normal, Log-Normal, Weibull, and Skewed Generalized T. Import/Export
: Easily move PSD data in and out of the simulation for use with external data. Stream Association
: PSDs can be directly assigned to solid compounds within material streams and specific unit operations. Property Calculations The software automatically calculates the Mean Particle Size Particle Size Standard Deviation within your material streams. DWSIM Pro allows you to change the enthalpy of formation
for pure solid compounds through the Pure Compound Property Viewer to refine thermodynamic accuracy. Visualization and Analysis Comparative Tools
: Use built-in charts and data tables to compare PSDs across different streams or unit operations.
: Visualize how significant properties like mean particle size evolve across the flowsheet using interactive heat maps. Comparison: DWSIM Pro vs. Open-Source Open-Source DWSIM Solids Manager Not available Dedicated environment for PSD PSD Support Limited manual entry Automated generation & tracking Standard flowsheet views Advanced property-based heat maps Basic reports Detailed Excel and datasheet exports DWSIM Pro is hosted on the Simulate 365 platform DWSIM Pro is a registered trademark of DWSIM Technologies
, which also provides a cloud-based dashboard for managing simulation files and version control. ScienceDirect.com or how the PSD heat maps are generated? Solids Manager in DWSIM Pro | Simulate 365 28 Nov 2024 —
DWSIM Pro: A Complete Guide to the Commercial Chemical Process Simulator
DWSIM Pro is the commercial counterpart to the widely recognized open-source DWSIM chemical process simulator. Developed by Daniel Wagner Oliveira de Medeiros, it provides an industrial-grade environment for modeling, simulating, and evaluating chemical processes with additional professional support and cloud-based features. What is DWSIM Pro?
While the standard DWSIM is a free, open-source tool used globally in academia and research, DWSIM Pro is designed for professional engineers and enterprises that require a more robust, supported, and feature-rich simulation environment. It maintains full compatibility with CAPE-OPEN standards and excels in both steady-state and dynamic simulations. Key Features and Extensions
Introduced with Version 7 of the software, the "Pro" version expands upon the foundational features of the open-source version with several high-value additions:
Extended Unit Operations (UO): Access to more complex and specialized unit operations not available in the free version.
Advanced Property Packages: Additional thermodynamic models and property packages that enhance calculation accuracy for specific industrial fluids.
Techno-Economic Analysis (TEA): Tools for estimating capital (CAPEX) and operational (OPEX) costs, and calculating economic indicators like the Minimum Ethanol Selling Price (MESP).
Cloud Hosting and Support: Hosted in the cloud with private, professional support for troubleshooting and complex process modeling.
Customization and Plugins: Supports creating custom unit operations using Visual Basic and C#. DWSIM Pro vs. Commercial Competitors
DWSIM Pro is frequently cited as a cost-effective alternative to "big-name" commercial simulators like Aspen Plus or PRO-II. DWSIM Pro - Simulate 365
It looks like you are exploring the specific capabilities included in DWSIM Pro.
DWSIM is an open-source chemical process simulator, but the "Pro" version (now typically distributed via Daniel Wagner's website or the DWSIM GitHub/Business tier) includes advanced features that go beyond the standard open-source baseline.
Here is a solid breakdown of the standout features you will find in DWSIM Pro, specifically highlighting why professionals upgrade to it.
Drag objects from the Palette onto the canvas and connect them using streams.