Top 20 NuGet expression Packages

Runtime expressions parser and evaluator (formulas, conditions, method calls, properties/indexers etc). Builds LINQ expression tree and compiles it to lambda delegate with full support of dynamically typed variables.
A library that converts cron expressions into human readable descriptions. Supports multiple languages including: English, Brazillian, Spanish, Norwgian, Turkish, Dutch, Chinese Simplified, Russian, French, German, Ukrainian, Polish, Romanian Italian, Swedish, Slovenian, Danish, Finnish and Japanes...
C# Eval Expression is an Eval function. You can Evaluate, Compile and Execute C# code at runtime. Example: https://dotnetfiddle.net/COq6FC Include free and prime features.
Simple, powerful and fast expressions based Inversion of Control container for .NET.
FastExpressionCompiler is 10-40x times faster than Expression.Compile()
An extension method for the Linq and DLR Expression classes and set of Debugger Visualizers to produce readable, source-code string versions of Expression Trees. Targets .NETStandard 1.0+ and .NET 3.5+.
This is a port of NCalc for .NET Core applications.
Step into debugging from linq expressions
A Simple Math and Pseudo C# Expression Evaluator in One C# File. Can also execute small C# like scripts
The Xamarin.Forms front end for CSharpMath.
C# expression interpreter/evaluator
mXparser is a super easy, rich, fast and highly flexible math expression parser library (parser and evaluator of mathematical expressions / formulas provided as plain text / string). Software delivers easy to use API for JAVA, Android and C# .NET/MONO (Common Language Specification compliant: F#, Vi...
Flee - Fast Lightweight Expression Evaluator
Gear for creating expressions that actively re-evaluate when changes occur.
A GraphQL library for .NET Core. Compiles queries into .NET Expressions (LinqProvider) for runtime execution against object graphs. E.g. against an ORM data model (EntityFramework or others) or just an in-memory object.
Translate from linq expressions to C# code
A multi-platform expression parsing and evaluating framework.
Performs fast, deep or shallow clone using simple assignment operations generated by Expression Tree runtime code compilation.
xFunc.Maths is a simple and easy to use library that allows you to build mathematical expressions.
Code generation mechanics for documents conversion and validation