droidVNC-NG is an open-source Android VNC server app that does not require root access. It comes with the following feature set:

Remote Control & Interaction

- Screen Sharing: Share your device's screen over the network, with optional scaling on the server side for better performance.
- Remote Control: Use your VNC client to control your device, including mouse and basic keyboard input. To enable this, you must activate the Accessibility API Service on your device.
- Special Key Functions: Remotely trigger key functions like 'Recent Apps,' Home button, and Back button.
- Text Copy & Paste: Support for copying and pasting text from your device to the VNC client. Note that server-to-client copy & paste only works automatically for text selected in editable text fields or manually by sharing text to droidVNC-NG via Android's Share-To functionality. Also, only text in the Latin-1 encoding range is currently supported.
- Multiple Mouse Pointers: Display different mouse pointers for each connected client on your device.

Comfort Features

- Web Browser Access: Control your device’s shared screen directly from a web browser, without needing a separate VNC client.
- Auto-Discovery: Advertise the VNC server using Zeroconf/Bonjour for easy discovery by native clients.

Security & Configuration

- Password Protection: Protect your VNC connection with a password.
- Custom Port Settings: Choose which port the VNC server uses for connections.
- Startup on Boot: Automatically start the VNC service when your device boots up.
- Default Configuration: Load a default configuration from a JSON file.

Advanced VNC Features

- Reverse VNC: Allow your device to initiate the VNC connection to a client.
- Repeater Support: Connect to a repeater that supports UltraVNC-style Mode-2 for more flexible networking.

Please note that more features are still being added to droidVNC-NG. Please report any issues and feature requests at https://github.com/bk138/droidVNC-NG