Meziantou.Framework.Language.Json 2.0.2

Prefix Reserved
.NET 10.0 This package targets .NET 10.0. The package is compatible with this framework or higher. 
dotnet add package Meziantou.Framework.Language.Json --version 2.0.2
                    


                    

                
NuGet\Install-Package Meziantou.Framework.Language.Json -Version 2.0.2
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="Meziantou.Framework.Language.Json" Version="2.0.2" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="Meziantou.Framework.Language.Json" Version="2.0.2" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="Meziantou.Framework.Language.Json" />
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add Meziantou.Framework.Language.Json --version 2.0.2
                    


                    

                
#r "nuget: Meziantou.Framework.Language.Json, 2.0.2"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
#:package Meziantou.Framework.Language.Json@2.0.2
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package. 
#addin nuget:?package=Meziantou.Framework.Language.Json&version=2.0.2
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=Meziantou.Framework.Language.Json&version=2.0.2
                    


                            Install as a Cake Tool

Meziantou.Framework.Language.Json

Meziantou.Framework.Language.Json provides an immutable JSON concrete syntax tree (CST) with roundtrip-safe parsing, diagnostics, source locations, trivia (comments/whitespace), and editing helpers.

  • parse JSON without reformatting untouched text
  • keep comments and trailing commas
  • report syntax issues through diagnostics (without throwing on invalid content)
  • edit nodes/trivia and serialize back with ToFullString()
  • evaluate JSONPath expressions directly on syntax nodes
using System.Linq;
using Meziantou.Framework.Json;
using Meziantou.Framework.Language.Json;

const string json = """
{
  // comment
  "name": "value",
  "items": [1, 2,],
}
""";

var tree = JsonSyntaxTree.ParseText(json);

// Diagnostics are empty for valid input (including comments/trailing commas)
var diagnostics = tree.Diagnostics;

// Query with JSONPath
var result = JsonPath.Parse("$.items[1]").EvaluateValue(tree);

// Edit a specific node while preserving untouched text
var number = tree.Root.DescendantNodes().OfType<JsonNumberSyntax>().Last();
var updated = tree.Root.ReplaceNode(number, SyntaxFactory.Number("42"));

var updatedJson = updated.ToFullString();

You can also use WithChanges for text-based incremental edits:

var tree = JsonSyntaxTree.ParseText("""{"a":1}""");
var updated = tree.WithChanges(new JsonTextChange(new TextSpan(5, 1), "2"));

Console.WriteLine(updated.Root.ToFullString()); // {"a":2}
Product Compatible and additional computed target framework versions.
.NET net10.0 is compatible.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed.  net11.0 is compatible. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages (1)

Showing the top 1 NuGet packages that depend on Meziantou.Framework.Language.Json:

Package Downloads
Meziantou.Framework.DependencyScanning

Find dependencies in source files. Support multiple package managers such as NuGet, npm, Docker, PyPi, and so on

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
2.0.2 41 7/17/2026
2.0.1 160 7/8/2026
2.0.0 139 7/5/2026
1.0.1 119 7/5/2026
1.0.0 105 7/3/2026