Craig Burton

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Cool Development Tools

March 14th, 2011 · No Comments · Apps, Coding, Innovation, KRL

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I always enjoy finding a new tool that makes things easier. Mike Grace pointed me to an awesome product. The product is called Charles. It runs on Windows, OSX, and Linux.

About Charles

Charles is a web proxy (HTTP Proxy / HTTP Monitor) that runs on your own computer. Your web browser (or any other Internet application) is then configured to access the Internet through Charles, and Charles is then able to record and display for you all of the data that is sent and received.

In Web and Internet development you are unable to see what is being sent and received between your web browser / client and the server. Without this visibility it is difficult and time-consuming to determine exactly where the fault is. Charles makes it easy to see what is happening, so you can quickly diagnose and fix problems.

Charles makes debugging quick, reliable and advanced; saving you time and frustration!

Key Features
  • SSL Proxying – view SSL requests and responses in plain text
  • Bandwidth Throttling to simulate slower Internet connections including latency
  • AJAX debugging – view XML and JSON requests and responses as a tree or as text
  • AMF – view the contents of Flash Remoting / Flex Remoting messages as a tree
  • Repeat requests to test back-end changes
  • Edit requests to test different inputs
  • Breakpoints to intercept and edit requests or responses
  • Validate recorded HTML, CSS and RSS/atom responses using the W3C validator

It has become invaluable in debugging KRL apps. I can recommend Charles without reserve.

Another indispensible tool for KRL app development is the JSON Editor.

This work is licensed under a Creative Commons license.

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