This simple packaged app lets you try out different versions of Chrome Devtools. Read more info here: https://github.com/sandipchitale/DevToolsApp The app was crashing on Chrome 38.x but is now working in 39.0.2171.65 m.
You can Follow the below Step By Step procedure to install the Dev Tools App Chrome Extension to your Chrome Web browser.
It is the Dev Tools App Chrome extension download link you can download and install Chrome Browser.
Capture a screenshot of your current page in entirety and reliably—without requesting any extra permissions!
Instant website analysis, including site rank, site traffic, sources and geography.
SEOquake is a free plugin that provides you with 'key' SEO metrics, along with other useful tools such as SEO Audit and many others
Simple yet powerful Cookie Editor that allow you to quickly create, edit and delete cookies without leaving your tab.
Advanced Eyedropper, Color Picker, Gradient Generator and other colorful goodies
Clear your cache and browsing data with a single click of a button.
Spoofs & Mimics User-Agent strings.
The Tag Assistant Companion extension works with Tag Assistant to help troubleshoot installation of gtag.js and Google Tag Manager.
Makes JSON easy to read. Open source.
Redux DevTools for debugging application's state changes.