> ## Documentation Index
> Fetch the complete documentation index at: https://bigbluebutton.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Accessibility

> BigBlueButton includes features for visual, hearing, motor, and privacy accessibility needs.

BigBlueButton is designed to be accessible to all users. This page consolidates accessibility features across the platform.

## Hearing Accessibility

### Closed Captions

Moderators can enable live closed captions for participants who are deaf or hard of hearing.

* **Moderator setup**: Enable closed captions from the session controls. See [Use Closed Captions (Moderator)](/help/moderator-guide/use-closed-captions).
* **Viewer experience**: Participants can toggle closed captions on or off from their toolbar. See [View Closed Captions](/help/user-guide/view-closed-captions).

### Browser-Based Speech Recognition

BigBlueButton supports your browser's built-in speech recognition for automatic captioning:

* **Chrome's built-in captioning**: Use Chrome's Live Caption feature for real-time transcription. See [Using Chrome's Built-in Closed Captioning](/help/faq/using-chromes-built-in-closed-captioning).
* **Browser speech recognition**: Enable your browser's speech-to-text for captions. See [Browser Built-in Speech Recognition](/help/releases/how-do-i-use-my-browsers-built-in-speech-recognition).

### Chat as an Alternative Channel

The public and private chat provides a text-based communication channel alongside audio. See [Send Public and Private Chat Messages](/help/user-guide/send-public-and-private-chat-messages).

## Visual Accessibility

### Dark Mode

Reduce eye strain and improve readability in low-light environments with dark mode. See [Enable Dark Mode](/help/user-guide/access-the-options-menu#dark-mode).

### Webcam Controls

* **Adjust brightness**: Modify your webcam brightness for better visibility. See [Adjust Webcam Brightness](/help/user-guide/share-a-webcam#how-do-i-adjust-my-webcams-brightness).
* **Make webcams larger**: Increase webcam size for better visibility. See [Make Webcams Larger](/help/user-guide/make-webcams-larger).

## Motor and Navigation Accessibility

### Keyboard Shortcuts

Navigate BigBlueButton without a mouse using keyboard shortcuts. See [Keyboard Shortcuts](/reference/keyboard-shortcuts) for a complete list.

## Privacy

### Webcam Background

Replace or blur your webcam background for privacy. See [Change Webcam Background](/help/user-guide/share-a-webcam).

### Disable Self-View

Hide your own webcam feed to reduce self-consciousness. See [Disable Self-View of Webcam](/help/releases/disable-self-view-of-webcam).