jsmpeg-vnc
A low latency, high framerate screen sharing server for Windows
...It includes command-line options for bitrate, output size, frame rate, port, crop area, and remote input control. The browser client can support mouse lock for games that require relative mouse movement instead of absolute pointer positions. Its stack combines native capture and encoding with WebSocket delivery and JavaScript video decoding, giving users a browser-viewable remote screen without a full traditional VNC client.