WebGL build in Unity - Step-by-Step Execution

Concept Flow - WebGL build

Open Unity Project

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Select Build Settings

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Choose WebGL Platform

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Switch Platform

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Configure Player Settings

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Click Build

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Unity Compiles and Exports WebGL Files

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Host Files on Web Server or Local

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Open WebGL Build in Browser

This flow shows how to create a WebGL build in Unity, from opening the project to running the build in a browser.

Execution Sample

Unity

1. Open Unity project
2. File > Build Settings
3. Select WebGL platform
4. Click Switch Platform
5. Click Build and choose folder
6. Wait for build to finish

Steps to create a WebGL build from Unity editor.

Execution Table

Step	Action	Unity Response	Result
1	Open Unity project	Project loads	Ready for build
2	Open Build Settings	Build Settings window opens	Can select platform
3	Select WebGL platform	WebGL platform highlighted	Ready to switch
4	Click Switch Platform	Unity switches build target	WebGL set as target
5	Click Build	Build dialog opens	Choose folder to save
6	Confirm folder and start build	Unity compiles and exports files	WebGL build created
7	Open index.html in browser	Browser loads WebGL content	Game runs in browser
Exit	Build complete	No errors	Process ends

💡 Build completes successfully and WebGL files are ready to run in a browser.

Variable Tracker

Variable	Start	After Step 4	After Step 6	Final
Build Target	Standalone	WebGL	WebGL	WebGL
Build Folder	None	None	User selected folder	User selected folder
Build Status	Not started	Switching platform	Building	Completed

Key Moments - 3 Insights

Why do I need to switch platform to WebGL before building?

Unity requires switching the build target to WebGL to prepare the project and assets correctly for the WebGL environment, as shown in step 4 of the execution_table.

What happens if I try to build without switching platform?

Unity will build for the currently selected platform, not WebGL, so the output won't run in a browser. The execution_table shows switching platform is necessary before building.

Where do the WebGL build files go?

You choose the folder during the build step (step 5 and 6). The variable_tracker shows 'Build Folder' changes from None to the user-selected folder.

Visual Quiz - 3 Questions

Look at the execution_table, at which step does Unity switch the build target to WebGL?

A Step 4

B Step 3

C Step 5

D Step 6

💡 Hint

Check the 'Unity Response' column for 'Unity switches build target' in step 4.

According to variable_tracker, what is the 'Build Status' after step 6?

A Not started

B Switching platform

C Building

D Completed

💡 Hint

Look at the 'Build Status' row under 'After Step 6' column.

If you skip step 4 and build immediately, what will happen according to the key_moments?

A Build will fail with an error

B Build will create files for the current platform, not WebGL

C Build will create WebGL files anyway

D Unity will automatically switch platform

💡 Hint

Refer to the second key moment about building without switching platform.

Concept Snapshot

WebGL build in Unity:
1. Open Build Settings
2. Select and switch to WebGL platform
3. Configure player settings if needed
4. Click Build and choose folder
5. Unity compiles and exports WebGL files
6. Run index.html in browser to play

Full Transcript

To create a WebGL build in Unity, first open your project and go to File > Build Settings. Select the WebGL platform and click Switch Platform to prepare the project. Then click Build, choose a folder to save the files, and wait for Unity to compile and export the WebGL build. Finally, open the generated index.html file in a web browser to run your game. Switching platform is important to ensure the build targets WebGL correctly. The build files are saved in the folder you select during the build step.