Ngrok is a secure tunneling service that enables developers to expose local servers to the internet through tunnel endpoints. It simplifies the process of sharing, testing, and developing APIs, webhooks, and web applications. Users can create secure tunnels to their localhost, allowing remote access and interaction with their applications in a secure manner. Ngrok automatically generates a public URL for each tunnel, which can be accessed globally. The platform supports HTTP, HTTPS, TCP tunneling, and can handle multiple tunnels, making it a versatile tool for development workflows, especially in complex integrations where multiple services need to connect without deploying changes to production. Developers can also receive detailed inspection and logging of requests to aid in debugging. Ngrok offers a free tier for basic usage while also providing various paid plans that unlock additional features such as custom domains, reserved domains, and enhanced security options. Overall, Ngrok is a valuable service for developers looking to streamline their development process and facilitate remote collaboration.