Adobe Dreamweaver - Adobe Dreamweaver is a proprietary web development tool developed by Adobe Systems.
HTTP Debugger - Debug HTTP API calls to a back-end and between back-ends. Easy of use, clean UI, and short ramp-up time. Not a proxy, no network issues!
Sublime Text - Sublime Text is a sophisticated text editor for code, html and prose - any kind of text file. You'll love the slick user interface and extraordinary features. Fully customizable with macros, and syntax highlighting for most major languages.
Google Chrome Developer Tools - Get started with Google Chrome's built-in web developer tools.
Eclipse IoT - Eclipse IoT provides the technology needed to build IoT Devices, Gateways, and Cloud Platforms.
Fiddler - Fiddler is a debugging program for websites.