01 / Flowsheets
Build the process you mean.
Connect feeds, vessels, columns, thermal equipment, piping, and controls on a visual engineering canvas.
Material + energy balance
Browser-native process engineering
Turn a process idea into a solved flowsheet.
Model the equipment. Choose the thermodynamics. Run the balance. Then follow the numbers all the way through—without installing a desktop suite or sending project data to a server.
- No account
- No installation
- Local calculation
$0to start building
23runnable example cases
100%browser-based workflow
Localproject files and calculations stay with you
The engineering workspace
More than a canvas.
More than a canvas.
A connected calculation environment.
ChemForge keeps the flowsheet, thermodynamics, equipment models, studies, and results in one place. Change the basis once, rerun, and see what moved.
02 / Thermodynamics
See phase behavior, not just a status light.
Generate bubble and dew curves, compare models, and work with VLE directly inside the project.
03 / Engineering depth
Move past the first balance.
Size relief devices, rate exchangers, solve piping, sweep cases, and document the basis beside the model.
HXHeat exchanger design↗
PSVAPI relief sizing↗
ΔPPipe hydraulics↗
ΣSensitivity studies↗
04 / Local by design
Your process data stays on your machine.
The simulation engine runs in the browser. Open and save ordinary project files without handing the model to a cloud calculation service.
A shorter path to an answer
Model. Solve. Interrogate.
The core workflow stays visible, so each result has a basis you can follow and a model you can revise.
01
Model the process
Start from a blank sheet or a worked case. Add equipment, connect streams, define components, and select the property method.
02
Solve the connected system
Run material and energy balances across the flowsheet, including recycle convergence and linked unit calculations.
03
Inspect what changed
Read stream results, plot phase behavior, compare cases, and sweep operating variables to understand the design—not merely converge it.
Open engineering, ready to run
Browse all 23 examples →
Start with a real model.
Recycle convergenceSteam methane reformingShell & tube HXAPI 520 reliefGravity flowAbsorption
Local-first architecture
Serious calculation.
Serious calculation.
Small operational footprint.
ChemForge arrives as a web application, but the engineering work happens on your device. That means immediate access for a student, a practical sandbox for a startup, and fewer deployment hurdles for a technical team.
- 01Open it anywhere
Use a current browser instead of maintaining a workstation installation.
- 02Keep custody of the model
Project data and calculations remain in your local workflow.
- 03Share an ordinary file
Save a ChemForge project and pass it to another engineer without a license handshake.
Your device
Private workspace
ChemForge workspaceBrowser UI
WASMThermo engineLocal compute
DBProperty dataLocal access
JSONProject fileYou control it
No process model upload required
Learn by building
From blank sheet to engineering result.
Short, narrated walkthroughs show the complete task—setup, modeling, calculation, and review—inside the actual product.
2.5 min
Getting started
Build your first flash
Define components, choose Peng–Robinson, connect a flash flowsheet, and inspect the solved streams.
4.5 min
Relief sizing
Size an API 520 relief valve
Set the protected equipment and scenario basis, calculate the required area, and review the sizing details.
Your next model can start now
Open a blank sheet.
Open a blank sheet.
Make the process real.
No download, sign-up, or license server between you and the first calculation.