The no. 1 Sankey diagram software
Data visualization is a great way to simplify and understand complex relationships in process systems. e!Sankey is the perfect tool for that! Sankey diagrams go beyond simple flow charts. Their arrows have a width proportional to the flow quantity and draw attention to the largest flows in the system.
Intuitive drawing and design
Design your Sankey diagrams in the net editor: Just draw arrows and processes to build your diagrams easily.
Management of entries and units
Benefit from a clear entry and unit management, including unit conversions.
Link to Microsoft Excel
Link your diagram to an Excel worksheet to keep it up-to-date and use it for calculations.
Balance Check
e!Sankey automatically compares inputs and outputs and can give warnings if these are not balanced.
Calculation of flow values
Use e!Sankey to calculate flow quantities. This makes the generation of Sankey diagrams even more comfortable.
Export diagrams
Export your diagrams as image files and integrate them into reports or presentations.
Become an e!Sankey user now
Get trial version
Test e!Sankey 14 days free of charge. Benefit from various sample diagrams, video tutorials and a comprehensive user manual.
Order your license now
Order your license now through our secure online shop. After your purchase you can directly download and activate the e!Sankey license.


Areas of application
e!Sankey can be used in many different fields of applications, such as:
- energy audits and energy management
- energy flows (energy balance, energy efficiency)
- material flows
- heat transfer and heat losses
- technical processes, chemical engineering
- waste water and waste disposal
- logistics, transport of goods, supply chain
- visualization of cost flows & value streams

Benefits of the software
e!Sankey is the standard Sankey diagram software for professionals. You can easily create Sankey diagrams with high accuracy and neat layout. Some of the advantages:
- Free drawing and arrow routing
- Live Link to Microsoft Excel
- Balance checks to show inconsistencies in the diagram
- Organized and flexible management of units and entries
- Local storage of files & diagrams (in your secure company network)
- Reliable & professional support

What is a Sankey diagram?
Diagrams are versatile in use. No matter whether you wish to create an energy flow, material flow, cost flow or a supply chain / process flow diagram. Use e!Sankey to create convincing visualizations for your presentations, reports and publications and link them to your Microsoft Excel files.
The perfect visualization for resource and energy efficiency: a Sankey diagram immediately draws the attention to the most important flows.

Automation & Integration:
Using the e!Sankey Software Development Kit (SDK) software developers can automate the creation of Sankey diagrams and integrate them into their own solutions.
Suppliers of energy management software and web solution providers benefit from this package to include appealing Sankey diagram visualizations into their own product.
