Online in One Line ngrok is simplified, API-first ingress-as-a-service trusted by over 5M developers to get their apps online faster and keep security happy. With one line of code, developers get instant ingress to services with authentication, observability, and other critical controls. All without provisioning legacy proxies, load balancers or VPNs. ngrok’s simplicity has made it a de-facto standard tool among developers, and the world’s top brands — including GitHub, Okta, Shopify, and Twilio — recommend it throughout their documentation.