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

- Network export of device frame buffer with optional server-side scaling.
- Injection of remote pointer events.
- Handling of client-to-server text copy & paste. Note that server-to-client copy & paste does not work in a generic way due to Android security restrictions.
- Handling of special keys to trigger 'Recent Apps' overview Home button and Back button.
- Android permission handling.
- Screen rotation handling.
- Password protection for secure-in-terms-of-VNC connection.
- Ability to specify the port used.
- Start of background service on device boot.
- Reverse VNC.
- Ability to connect to a UltraVNC-style Mode-2 repeater.

Please note that more features are still being added to droidVNC-NG. In particular most keyboard strokes as of now can only be input via the Android soft keyboard there is only limited support for keyboard events from VNC viewers (yet). Please report any issues and feature requests at https://github.com/bk138/droidVNC-NG