---
title: "ngrok"
description: "1 posts about ngrok, summarised, each linking to the original."
---

# ngrok
> 1 posts about ngrok, summarised, each linking to the original.

## Articles

### [3 Tips on Using Ngrok to Maximize Messenger Apps](https://yomu.fyi/post/3-tips-on-using-ngrok-to-maximize-messenger-apps.md)
- Company: [Intercom](https://yomu.fyi/company/intercom.md)
- Published: Oct 9, 2026
- Type: Tutorial

Ngrok is a tool that creates public URLs to expose a web server on a development machine, enabling developers to set webhook URLs while building Messenger Apps for Intercom without external infrastructure. To start, run ‘ngrok http 3000’ to tunnel a local server; the free version limits sessions to eight hours and generates a new address each run. The ngrok web interface at http://localhost:4040 allows inspection of HTTP traffic, showing request and response details. Developers can replay requests with the Replay button to avoid manually re-triggering endpoints during testing. The interface also validates JSON formatting in request and response bodies, highlighting errors like missing quotes for debugging.