https://scratch.mit.edu/.How to Open ".sb3" Files on Android, iOS, Windows, macOS, and Linux

**1. Windows/Mac/Linux**

You can open `.sb3` files using the **Scratch Desktop** application or **Scratch Online Editor**.

- **Scratch Desktop**:

   1. Download and install [Scratch Desktop](https://scratch.mit.edu/download.

   2. Open the application.

   3. Click on **Create** to start the editor.

   4. Then, click on **File > Load from your computer** and select your `.sb3` file.

- **Scratch Online Editor**:

   1. Go to the [Scratch website](https://scratch.mit.edu.

   2. Click on **Create** to open the editor.

   3. In the editor, click on **File > Load from your computer** and select your `.sb3` file.

**2. Android**

- **Scratch in Browser**:

   1. Open a web browser on your Android device.

   2. Go to the [Scratch website](https://scratch.mit.edu.

   3. Tap **Create** to open the editor.

   4. In the editor, click on **File > Load from your computer** and upload the `.sb3` file.

#### **3. iOS (iPhone/iPad)**

- **Scratch in Browser**:

   1. Open Safari or another web browser.

   2. Visit the [Scratch website](https://scratch.mit.edu.

   3. Tap **Create** to start the editor.

   4. Use **File > Load from your computer** to upload the `.sb3` file.