# zzzprojects/Z.ExtensionMethods

C# Extension Methods | Over 1000 extension methods:

Repository: https://github.com/zzzprojects/Z.ExtensionMethods
Canonical: https://ross.abutalabs.com/products/zextensionmethods
Homepage: https://csharp-extension.com
Language: C#
License: MIT
License Family: permissive
Topics: csharp, dotnet, dotnet-core, extensionmethods, extension-methods
Last push: 2025-05-31T18:48:53+00:00

## Health v2 (maintenance only)
Score: 34/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 24, release rhythm 8, longevity 100
- inputs: {"age_days": 4201, "days_push": 459, "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 1729, forks 353 (observed 2026-08-28T04:05:28.520632+00:00)

## What it is
Z.ExtensionMethods is a C# library that enhances .NET Framework and .NET Core with over 1000 extension methods covering types like String, DateTime, Stream, FileInfo, and many more. It is distributed on NuGet in several packaging variants and is backed by a documented cheat sheet and online examples.

## Use cases
- find c# extension methods for string manipulation
- extension methods library for .net core
- c# helper methods for datetime and files
- add missing utility methods to .net built-in types
- c# extension methods cheat sheet
- nuget package with common c# extension methods

## When to choose
- you want a broad, batteries-included set of ready-made C# extension methods instead of writing your own helpers
- you need an MIT-licensed NuGet utility library that works on both .NET Framework and .NET Core
- you want documented, searchable extension methods with online examples for learning C# idioms

## When to avoid
- you prefer minimal dependencies and only need one or two specific helpers
- you are not developing in C# or on the .NET platform
- you need a focused single-purpose library rather than a large grab-bag of methods

## Facets
- artifact type: library
- maturity: stable
- function: developer-tools
- domain: developer-tools, cross-platform
- platform: dotnet, cross-platform, windows
- tags: csharp, extension-methods, dotnet-core, nuget, utility-library, string-extensions, cheat-sheet

## Member repositories
- zzzprojects/Z.ExtensionMethods (main) score 34

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:28.520632+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 2026-08-30T03:31:57.617005+00:00, confidence not recorded.
  - readme: https://github.com/zzzprojects/Z.ExtensionMethods (fetched 2026-08-28T04:05:28.520632+00:00, sha b6140941fae9)
  - homepage: https://csharp-extension.com (fetched 2026-08-29T11:08:42.247519+00:00, sha 67bc8b91a072)
- Data as of 2026-08-30T08:39:29.467469+00:00.