Spreadsheets, diagrams, speciation, thermo editor, and more
Just a few clicks produce publication-quality diagrams — Visit our gallery of examples
Move up to Essentials, Standard, or Professional editions
Size up Professional, Standard, Essentials, and Community versions, side-by-side
Support options include our Online Academy, videos, tutorials, and more. Or visit our Forum
Browse hundreds of discussions, query the GWB community, or post technical questions
Answers to the questions most commonly posed by the user community
Drag and drop
You can drag files into any GWB app, or drag data from one app to another
We offer online workshops, private training, and resources for self-study
We teach our famous workshops online and at vibrant locations around the world!
We come to you! If you have several trainees, save money with a private online course
Self-guided training and free lesson plans for teachers!
Our online tutorials lead you step-by-step through a variety of calculations
Watch expert modelers using the GWB to solve common problems in geochemistry
Learn to create your own GWB video tutorials
You can download thermo datasets, User’s Guides, updates, and more
Click here to download your own copy of the free GWB Community Edition software
Download the six-volume GWB User’s Guides complete with cover art in pdf format
Thermodynamic datasets distributed with the GWB; links to datasets distributed by others
The "GWB Symbol" TrueType font is designed to mark data points accurately
Our email contacts, telephone number, and location of our offices in Champaign, Illinois
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The Geochemist’s Workbench® home page — The premier toolset for aqueous chemists!
Advanced tools for aqueous chemists,
. Visit the GWB Community Edition website!
Self-guided training and free lesson plans for teachers at the GWB Online Academy!
ChemPlugin™ instances self-link into reactive transport simulators. Visit ChemPlugin's website!
Free tools for aqueous chemists
The Geochemist's Workbench
The best things in life are free
The GWB software is fantastic! It is comprehensive and flexible, the two main things I look for.
—Abby M., Horizons Regional Council, New Zealand
Got it, downloaded it, and made an activity diagram. Thanks for making a great product!
—Megan E. M., Univ. of Oklahoma
Instructor-led hands-on workshops
Prior to the course I found the program daunting, but now I feel comfortable using it and am very impressed with what I can do.
—Ashlee D., Penn State University
GWB Community Edition is
GWB Community is the free modeling and diagramming toolset for aqueous chemists.
Student Edition is now GWB Community
The same software you loved, but
to the entire aqueous chemistry community.
Instructor-led and self-paced training
Take part in a hands-on
or learn at your own speed at the free
GWB Online Academy
Need to model kinetic reactions, microbial processes, or reactive transport?
to a paid version of the GWB.
The Geochemist's Workbench