# Enable WebAssembly64


Enable WebAssembly64 so Unity Web builds can use up to 16 GB of memory.

Unity automatically enables WebAssembly64 if you configure a maximum memory size of more than 4 GB.

To enable WebAssembly64:

1. Go to **Edit** > Editor.
2. Select the **Player** category. The **Player** settings window shows.
3. Select **Publishing Settings**.
4. Set **Maximum Memory Size** to a value larger than 4096 MB.

> **Note:**
>
> When you enable WebAssembly64, Unity automatically enables **Target WebAssembly 2023**.

## Additional resources

* [WebAssembly64](/engine/6000.6/manual/platform-specific/webgl/develop/wasm-64bit-support.md)
* [Prerequisites for WebAssembly64](/engine/6000.6/manual/platform-specific/webgl/develop/wasm-64bit-support/wasm-64bit-prereq.md)
* [Web Player settings](/engine/6000.6/manual/platform-specific/webgl/develop/class-player-settings-web-gl.md)
* [WebAssembly 2023](/engine/6000.6/manual/platform-specific/webgl/develop/webassembly-2023.md)