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The data and information within DWSIM has been obtained from a wide variety of literature sources. While reasonable care has been exercised in the collection of data and testing of this software, the author and contributors of the DWSIM Project disclaims any warranty, expressed or implied, as to the accuracy or reliability of the data or calculations contained therein.

The results of calculations obtained from DWSIM yield approximate results, which will not always be suitable for every application. The software is designed for use by trained professional personnel and is not a substitute for sound professional judgment. It is the sole responsibility of the user to validate the data presented by DWSIM and to determine whether the results of this program are accurate and suitable for any specific purpose. No guarantee of accuracy or fitness for any purpose is expressed or implied.

The author and contributors strongly recommends that the data be checked against other sources and/or methods before use and application. DWSIM's author and its contributors shall not be held liable for any direct, indirect, consequential or incidental damages incurred through use of the data or calculations.

Support the Project

DWSIM for Windows/Linux/macOS is open-source software and will always be.

If DWSIM is or was useful to you in any way, please consider making a donation using PayPal or through the download system when you download an installation package.

When you donate to DWSIM project, you donate directly to me, Daniel Wagner Oliveira de Medeiros, the main developer, site mantainer, project manager, etc...

Donations made through the download system will be transferred to PayPal first, then to my bank account. Donations made through the PayPal button are transferred to my bank account. Almost 15% of what you donate is "lost" in transaction fees and currency conversion rates.

Donations are for me as an individual and thus each donation supports everything I do, i.e. they help me pay my bills at the end of the month among other stuff. I also donate to some charity campaigns but these donations are personal, they have nothing to to with DWSIM and thus do not depend on the donations I receive from it.

Donation Options

Donate through an International Bank Transfer (SWIFT). Click here to send me an email and I'll send you my bank account details.
Donate through a PayPal Account or by using a Credit Card.

DWSIM for Desktop Systems

Latest Desktop Release (Early Access to Paying Users): v5.2 with Update 14 (August 17, 2018)

Latest Desktop Release (Non-Paying Users): v5.2 with Update 13 (August 13, 2018)

See What's New and view the ReadMe file for the latest Desktop Release.

Download Options

If you are a professional
, please consider using the download links on the boxes below to pay US$ 10 or more and get early access to updates and priority 24/7 e-mail support.

Student Downloads

If you are a student
, you can download the same installers for free from the SourceForge Project Page. Support for you is available on the SourceForge Forums only. Direct emails asking for help/support will be ignored.

Windows 7/8/10

Version 5.2 with Update 14


DOWNLOAD & DONATE $10+ (64-bit)
DOWNLOAD & DONATE $10+ (32-bit)

Download size: 62 MB (Windows Installer Package)

Debian Linux

Version 5.2 with Update 14


DOWNLOAD & DONATE $10+ (64-bit)

Download size: 52 MB (Debian Software Package)

macOS (OS X)

Version 5.2 with Update 14



Download size: 82 MB (macOS App Bundle)

Lubuntu 16.04 x64 VirtualBox VDI Disk Image


Latest Version: 1.1 (with DWSIM 5.1 Update 8)


Download size: 1.23 GB (7z-compressed file)



Capital Cost Estimator
ThermoC Bridge Library
Advanced EOS Library

Source Code

Source code1600.png

View @ GitHub
Download Releases


DWSIM for Mobile Devices

DWSIM is available for mobile devices running Android 4.4 or newer and iOS 9.0 or newer. The download must be done through the Play Store (Android) or the App Store (iOS).

Android (4.4 or newer)


Latest Version: 2.7.12


iOS (iPhone/iPad Universal App)


Latest Version: 2.7.9


DWSIM for Raspberry Pi 2/3

DWSIM for Raspberry Pi 2/3 is available as a Debian Installer Package for Raspbian and Ubuntu MATE. You must install Mono v5.8 or newer before running the installer. GDebi can be used to automatically install the package and its dependencies on these distributions.

Raspberry Pi 2/3

Version 5.2 with Update 14



Download size: 25 MB (Debian Software Package)

Additional Information


Administrator privileges are not required for the installation of DWSIM itself, but do are for .NET Type Libraries Registration (to enable Automation) and installation of the supplementary software. Requires Microsoft .NET Framework 4.7.1.


The software package installs DWSIM on Debian Linux distributions (i.e. Ubuntu), taking care of required dependencies. Tested on Ubuntu Desktop 16.04 only. Requires Mono Framework version 5.8 or newer to run.

The preconfigured Lubuntu 16.04 VirtualBox Disk Image contains DWSIM 5.1 with Update 7 and all required plus optional packages. You can update DWSIM on this VM by downloading and installing the Debian Software Package.


The download contains a compressed ZIP file with an App Bundle for DWSIM on macOS.


The Debian Installer Packages for Raspberry Pi 2/3 takes care of required dependencies. Includes binaries, documentation and samples. Requires Mono 5.0 or newer with the Visual Basic compiler package (mono-vbnc) and GTK# version 2.12 or newer to run.

Follow these instructions to install the most recent Mono version on Raspbian Stretch and Ubuntu MATE:

After installation, run DWSIM through the terminal by typing 'dwsim'.

GitHub Releases

These are automatic build releases from the latest code on GitHub, which may include critical bug fixes and/or untested/unfinished new features. There is no support for the files downloaded using this method.

Source Code

DWSIM source code is written in VB.NET and C#, which can be compiled with Visual Studio 2017 on Windows, MonoDevelop on Linux and Visual Studio for Mac with Mono Framework v5.12+ on macOS.