The Problem: Twilio Webhooks Won't Hit Your Localhost
When you're building a Twilio integration—whether handling incoming SMS, voice callbacks, or call status updates—you need to test those webhooks against your local development environment. But Twilio's servers can't reach http://localhost:3000. Your machine isn't publicly routable on the internet. You need a way to expose your local webhook handler to Twilio's infrastructure, capture the payloads, inspect them, and debug failures without deploying to staging every time.
This is where most developers hit a wall: they either spin up a staging environment (slow feedback loop) or struggle with outdated tunneling solutions that break on restart. Testing Twilio webhooks locally requires both a stable public endpoint and a reliable way to forward those requests back to your machine. Let's walk through the real approaches.
Prerequisites
Node.js (v14+) and npm installed locally
