Plutocalc Designer
^{Reliable and practical plant sizing}

Plutocalc Designer is a software suite for advanced water and wastewater treatment plant design.

Features

• Numeric solvers/optimizers that converge better and faster than any spreadsheet
• Technology provider agnostic - use components from any manufacturer
• Databases of chemical properties, coefficients, parts and components
• Latest design practices from reliable peer-reviewed scientific and engineering publications
• Powerfull calculations with simplified workflow
• Handbook for each process with literature references, detailed instructions, comments and tips
• API for connecting with external applications, OpenAPI compliant
• Model Context Protocol (MCP) for connecting with AI tools
• Privacy first! No project/design information is stored in our servers
• No installation required. Works on Windows, Mac, Android, iOS, Linux, LLMs and even on smart TVs and refrigerators
• Export and import using open file formats (TXT/MD, HTML and JSON)
• Run calculations directly from spreadsheets with the Excel interface
• Multi-language: Output file can be translated using Google Translate
• Supports hundreds of measurement units for inputs and outputs

What's new

• 07/02/2026 - Version 2.0
• New: user friendly form based web interface
• New: export to formatted HTML
• New: API commands markdowntojson, jsontomarkdown and listmodelsinfo
• New: API compatible with OpenAPI 3 standard
• Improved: text mode now using Markdown format
• Improved: overall error checking and pre-calculation validation
• Improved: MCP (Model Context Protocol) descriptors and tools
• All changes and version history

• 16/01/2026 - Version 1.6
• Improved security
• Updated API
• New Model Context Protocol server for AI models connectivity
• Implemented credits purchase system
• All changes and version history
• 19/04/2025 - Version 1.5
• First stable release
• All changes and version history

Design tools

License key information

Retrieve information about the credits balance for a specific license.

Contact

Please contact the developer at [email protected] for feature requests, bug reporting and improvement suggestions.

License

Plutocalc Designer was created and developed by Daniel BP with the collaboration of several engineers and scientists and is distributed under this End User License and Privacy Agreement.

Privacy policy

Plutocalc Designer software collects and records the license key and IP address from the users for the sole purpose of managing the server load, anonymous statistics and credits balance control. Plutocalc Designer does not store calculation inputs, calculation outputs, names, e-mails, addresses, phone numbers or payment information.
For more information please refer to the End User License and Privacy Agreement