# microsoft/Power-Fx

Power Fx low-code programming language

Repository: https://github.com/microsoft/Power-Fx
Canonical: https://ross.abutalabs.com/products/power-fx
Language: C#
License: MIT
License Family: permissive
Topics: power-fx, powerfx
Last push: 2026-08-21T23:30:13+00:00

## Health v2 (maintenance only)
Score: 67/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 98, release rhythm 8, longevity 100
- inputs: {"age_days": 2017, "days_push": 12, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3364, forks 358 (observed 2026-08-28T04:07:58.209033+00:00)

## What it is
Microsoft Power Fx is a low-code general-purpose programming language based on spreadsheet-like formulas, strongly typed, declarative, and functional with imperative logic available as needed. This repository provides the open-source C# implementation of the language, distributed as NuGet packages, extracted from Power Apps for broader use.

## Use cases
- embed a formula evaluation engine in a .NET application
- build low-code apps with spreadsheet-like expressions
- parse and evaluate Power Fx formulas
- add user-editable business logic to a product
- integrate Power Platform formula language into custom tools

## When to choose
- you need a familiar Excel-like formula language for end users
- you are building low-code or no-code tooling on .NET
- you want to evaluate user-authored expressions safely with strong typing

## When to avoid
- you need a general-purpose procedural programming language
- your project is not on the .NET ecosystem
- you need a mature standalone language outside Microsoft Power Platform tooling

## Facets
- artifact type: library
- maturity: active
- function: interpreter, parser, programming-language
- domain: programming-languages, developer-tools
- platform: dotnet, cross-platform
- tags: low-code, spreadsheet-formulas, declarative-language, microsoft-power-platform, formula-language

## Member repositories
- microsoft/Power-Fx (main) score 67

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:58.209033+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T18:40:19.047635+00:00, confidence not recorded.
  - readme: https://github.com/microsoft/Power-Fx (fetched 2026-08-28T04:07:58.209033+00:00, sha 485dfb8ad3ec)
- Data as of 2026-08-30T08:39:29.467469+00:00.