LigerShark.WebOptimizer.Sass 3.0.118

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dotnet add package LigerShark.WebOptimizer.Sass --version 3.0.118
NuGet\Install-Package LigerShark.WebOptimizer.Sass -Version 3.0.118
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="LigerShark.WebOptimizer.Sass" Version="3.0.118" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add LigerShark.WebOptimizer.Sass --version 3.0.118
#r "nuget: LigerShark.WebOptimizer.Sass, 3.0.118"
#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.
// Install LigerShark.WebOptimizer.Sass as a Cake Addin
#addin nuget:?package=LigerShark.WebOptimizer.Sass&version=3.0.118

// Install LigerShark.WebOptimizer.Sass as a Cake Tool
#tool nuget:?package=LigerShark.WebOptimizer.Sass&version=3.0.118

A Scss compiler for ASP.NET Core

Build status NuGet

This package compiles Sass/Scss into CSS by hooking into the LigerShark.WebOptimizer pipeline.


Add the NuGet package LigerShark.WebOptimizer.Sass to any ASP.NET Core project supporting .NET Standard 2.0 or higher.

> dotnet add package LigerShark.WebOptimizer.Sass

Since the original library is written in JavaScript, you will need a JS engine to run it. As a JS engine is used the JavaScript Engine Switcher library. First of all, you need to install the JavaScriptEngineSwitcher.Extensions.MsDependencyInjection package which makes registration of JS engines more convenient. Then you need to install one of the NuGet packages containing a JS engine provider:

After installing the packages, you will need to register the default JS engine.


Master is being updated for ASP.NET Core 3.0 For ASP.NET Core 2.x, use the 2.0 branch.


Here's an example of how to compile a.scss and b.scss from inside the wwwroot folder and bundle them into a single .css file called /all.css:

In Startup.cs, modify the ConfigureServices method:

public void ConfigureServices(IServiceCollection services)

    // Add JavaScriptEngineSwitcher services to the services container.
    services.AddJsEngineSwitcher(options =>
        options.AllowCurrentProperty = false;
        options.DefaultEngineName = V8JsEngine.EngineName;

    services.AddWebOptimizer(pipeline =>
        pipeline.AddScssBundle("/all.css", "a.scss", "b.scss");

...and add app.UseWebOptimizer() to the Configure method anywhere before app.UseStaticFiles, like so:

public void Configure(IApplicationBuilder app, IHostingEnvironment env)
    if (env.IsDevelopment())


    app.UseMvc(routes =>
            name: "default",
            template: "{controller=Home}/{action=Index}/{id?}");

Now the path http://domain/all.css will return a compiled, bundled and minified CSS document based on the two source files.

You can also reference any .scss files directly in the browser (http://domain/a.scss) and a compiled and minified CSS document will be served. To set that up, do this:

services.AddWebOptimizer(pipeline =>

Or if you just want to limit what .scss files will be compiled, do this:

services.AddWebOptimizer(pipeline =>
    pipeline.CompileScssFiles("/path/file1.scss", "/path/file2.scss");

Setup TagHelpers

In _ViewImports.cshtml register the TagHelpers by adding @addTagHelper *, WebOptimizer.Core to the file. It may look something like this:

@addTagHelper *, WebOptimizer.Core
@addTagHelper *, Microsoft.AspNetCore.Mvc.TagHelpers
Product Compatible and additional computed target framework versions.
.NET net5.0 was computed.  net5.0-windows was computed.  net6.0 was computed.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  net8.0 was computed.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed. 
.NET Core netcoreapp3.0 is compatible.  netcoreapp3.1 was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

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Version Downloads Last updated
3.0.118 5,683 4/3/2024
3.0.115 18,680 2/6/2024
3.0.102 16,749 10/16/2023
3.0.99 99,634 6/19/2023
3.0.97 7,644 5/22/2023
3.0.91 142,744 7/20/2022
3.0.84 39,902 3/21/2022
3.0.82-beta 19,907 1/21/2022
3.0.81-beta 284 1/20/2022
3.0.77-beta 4,362 1/13/2022
3.0.75-beta 2,812 1/12/2022
3.0.73-beta 764 1/3/2022
3.0.58-beta 55,126 5/4/2021
3.0.43-beta 39,127 7/14/2020
3.0.42-beta 10,011 5/28/2020
3.0.40-beta 75,081 9/25/2019
1.0.34-beta 32,423 2/8/2018
1.0.33-beta 26,073 10/16/2017
1.0.32-beta 892 8/24/2017
1.0.30-beta 761 8/23/2017
1.0.29-beta 721 8/23/2017
1.0.28-beta 746 8/22/2017
1.0.25-beta 724 8/21/2017
1.0.23-beta 765 8/21/2017
1.0.22-beta 777 8/15/2017
1.0.19-beta 778 8/11/2017
1.0.18-beta 791 8/11/2017
1.0.16-beta 766 8/10/2017
1.0.15-beta 774 8/10/2017
1.0.12-beta 751 8/7/2017
1.0.10-beta 780 8/4/2017