Coturn
Coturn is an open-source TURN/STUN server used for NAT traversal in real-time communication applications, such as WebRTC. It helps establish peer-to-peer connections by relaying media and data when direct connections are blocked by firewalls or NAT devices. It supports protocols like TURN, STUN, and ICE to facilitate connectivity in VoIP, video conferencing, and gaming.
Developers should use Coturn when building WebRTC-based applications that require reliable peer-to-peer connections across diverse network environments, as it handles NAT traversal issues that can block direct media streams. It is essential for applications like video chat, online gaming, or live streaming where low-latency communication is critical, ensuring connectivity even in restrictive network setups.