# Use C# code to enable optimization settings

> Use a C# script to enable some optimization settings.

You can use code to enable some optimizations recommended in [Optimize your Web build](/engine/6000.5/manual/platform-specific/webgl/building-distribution/web-optimization.md). If you use code to configure these settings it can save you time having to manually set each of them individually.

> **Note:**
>
> This script only works in the Unity Editor, not in builds.

## Create a C# script to optimize your Web build

To use code to enable most of these optimizations at once in your Unity project settings:

1. Create an `Assets/Editor` folder if you don't already have one.

2. Create an empty C# script in the `Editor` folder.

3. Paste the following code into the script:

   ```lang-cs
   using UnityEditor;
   using UnityEditor.Build;
   using UnityEngine;

   public class WebOptimizer
   {
       [MenuItem("Example/Optimize")]
       public static void Optimize()
       {
           var namedBuildTarget = NamedBuildTarget.WebGL;

           // Set IL2CPP code generation to Optimize Size 
           PlayerSettings.SetIl2CppCodeGeneration(namedBuildTarget,         
                                           Il2CppCodeGeneration.OptimizeSize);

           // Set the Managed Stripping Level to High
           PlayerSettings.SetManagedStrippingLevel(namedBuildTarget,     
                                               ManagedStrippingLevel.High);  

           // Strip unused mesh components           
           PlayerSettings.stripUnusedMeshComponents = true;

           // Enable data caching
           PlayerSettings.WebGL.dataCaching = true;

           // Set the compression format to Brotli
           PlayerSettings.WebGL.compressionFormat = WebGLCompressionFormat.Brotli;

           // Deactivate exceptions
           PlayerSettings.WebGL.exceptionSupport = WebGLExceptionSupport.None;

           // Deactivate debug symbols
           PlayerSettings.WebGL.debugSymbolMode = WebGLDebugSymbolMode.Off;

           //Enable WebAssembly 2023 features
           PlayerSettings.WebGL.wasm2023 = true;           

           // Set Platform Settings to optimize for disk size (LTO)
           UnityEditor.WebGL.UserBuildSettings.codeOptimization = UnityEditor.WebGL.WasmCodeOptimization.DiskSizeLTO;
       }
   }
   ```

4. Change the script to suit your project.

5. From the toolbar, select **Example** > **Optimize** to run the script. Your settings update.

To change the settings for Asset Import Overrides, refer to [Build profile reference](/engine/6000.5/manual/building-and-publishing/build-settings/build-profiles-reference.md#AssetImportOverride).

## Additional resources

* [Optimize your Web build](/engine/6000.5/manual/platform-specific/webgl/building-distribution/web-optimization.md)

* [Recommended Graphics settings to optimize your Web build](/engine/6000.5/manual/platform-specific/webgl/building-distribution/web-optimization/graphics.md)

* [Recommended Player settings to optimize your Web build](/engine/6000.5/manual/platform-specific/webgl/building-distribution/web-optimization/player.md)

* [Recommended Quality settings to optimize your Web build](/engine/6000.5/manual/platform-specific/webgl/building-distribution/web-optimization/quality.md)

* [Remove unused resources from your Web build](/engine/6000.5/manual/platform-specific/webgl/building-distribution/web-optimization/remove-resources.md)

* [Optimize Web platform for mobile](/engine/6000.5/manual/platform-specific/webgl/building-distribution/web-optimization-mobile.md)