> For the complete documentation index, see [llms.txt](https://docs.cobrowse.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.cobrowse.io/sdk-features/identify-your-devices.md).

# Identify your devices

Effortlessly identify, search, and filter devices on your dashboard by specifying custom key/value pairs as metadata. Learn more.

To help you identify, search, and filter devices in your Cobrowse dashboard, it's helpful to specify any meaningful metadata.

You may add any custom key/value pairs you'd like, and they will all be searchable and filterable in your online dashboard. We've added a few placeholders for convenience only - all fields are optional.

{% tabs %}
{% tab title="Web" %}

```javascript
CobrowseIO.customData = {
    user_id: "<your_user_id>",
    user_name: "<your_user_name>",
    user_email: "<your_user_email>",
    device_id: "<your_device_id>",
    device_name: "<your_device_name>"
};
```

{% endtab %}

{% tab title="iOS / MacOS" %}
**Swift**

```swift
CobrowseIO.instance().customData = [
    CBIOUserIdKey: "<your_user_id>",
    CBIOUserNameKey: "<your_user_name>",
    CBIOUserEmailKey: "<your_user_email>",
    CBIODeviceIdKey: "<your_device_id>",
    CBIODeviceNameKey: "<your_device_name>"
]
```

**Objective-C**

```objectivec
CobrowseIO.instance.customData = @{
    CBIOUserIdKey: @"<your_user_id>",
    CBIOUserNameKey: @"<your_user_name>",
    CBIOUserEmailKey: @"<your_user_email>",
    CBIODeviceIdKey: @"<your_device_id>",
    CBIODeviceNameKey: @"<your_device_name>"
};
```

{% endtab %}

{% tab title="Android" %}

```java
HashMap<String, String> customData = new HashMap<>();
customData.put("user_id", "<your_user_id>");
customData.put("user_name", "<your_user_name>");
customData.put("user_email", "<your_user_email>");
customData.put("device_id", "<your_device_id>");
customData.put("device_name", "<your_device_name>");
CobrowseIO.instance().customData(customData);
```

{% endtab %}

{% tab title="React Native" %}

```javascript
CobrowseIO.customData = {
    user_id: "<your_user_id>",
    user_name: "<your_user_name>",
    user_email: "<your_user_email>",
    device_id: "<your_device_id>",
    device_name: "<your_device_name>"
};
```

{% endtab %}

{% tab title="Flutter" %}

```dart
CobrowseIO.instance.setCustomData(<String, String>{
    'user_id': '<your_user_id>',
    'user_name': '<your_user_name>',
    'user_email': '<your_user_email>',
    'device_id': '<your_device_id>',
    'device_name': '<your_device_name>'
});
```

{% endtab %}

{% tab title=".NET Mobile" %}

```csharp
CobrowseIO.Instance.CustomData = new Dictionary<string, string>
{
    { CobrowseIO.UserIdKey, "<your_user_id>" },
    { CobrowseIO.UserNameKey, "<your_user_name>" },
    { CobrowseIO.UserEmailKey, "<your_user_email>" },
    { CobrowseIO.DeviceIdKey, "<your_device_id>" },
    { CobrowseIO.DeviceNameKey, "<your_device_name>" }
};
```

{% endtab %}

{% tab title="Windows" %}

```csharp
CobrowseIO.Instance.CustomData = new Dictionary<string, object>()
{
    { CobrowseIO.UserIdKey, "<your_user_id>" },
    { CobrowseIO.UserNameKey, "<your_user_name>" },
    { CobrowseIO.UserEmailKey, "<your_user_email>" },
    { CobrowseIO.DeviceIdKey, "<your_device_id>" },
    { CobrowseIO.DeviceNameKey, "<your_device_name>" }
};
```

{% endtab %}
{% endtabs %}