microsoft/Power-Fx

Power Fx is a low-code programming language based on spreadsheet-like formulas that brings declarative, functional syntax to business logic expression.

Power Fx addresses the need to make programming accessible to non-developers and citizen developers by adopting the familiar formula model from spreadsheets. The language is strongly typed, declarative, and functional, with imperative logic and state management available when needed. It originated in Power Apps canvas apps and is being extracted as a general-purpose language for broader use across the Microsoft Power Platform ecosystem.

The tool suits organizations building low-code applications within the Microsoft Power Platform, particularly teams with business users who understand spreadsheet formulas. It is designed for expressing business logic in a way that feels natural to non-programmers while remaining capable enough for complex scenarios. The project provides multiple packages for different use cases: a core language package, connectors support, JSON handling, an interpreter, and Language Server Protocol support for editor integration.

Development activity shows consistent engagement with the extraction and generalization of the language from its Power Apps origins. The project maintains multiple NuGet packages in active distribution. Documentation is being progressively extracted from Power Apps documentation and generalized for broader audiences. The team provides samples and daily builds alongside released packages, indicating ongoing refinement of the language and tooling.